Firms To Watch: Intellectual property: patents (contentious and non-contentious)

US litigation leader Quinn Emanuel Urquhart & Sullivan, LLP recently launched a contentious IP practice in London with the hire of David Lancaster, a qualified barrister, from Pinsent Masons LLP.

Intellectual property: patents (contentious and non-contentious) in London

A&O Shearman

Commended as a ‘top quality’ and ‘high calibre’ team, A&O Shearman is noted for its global IP capabilities, acting for the largest companies in the technology and telecoms sectors. David Stone leads the global IP team, while Jim Ford co-chairs the firm’s global life sciences group and is known for his expertise on the exploitation of IP rights. Mark Ridgway routinely acts for clients in high value mandates across the technology, telecoms, life sciences and financial services sectors, and Nigel Parker possesses vast experience across complex IP joint ventures, IP compliance and risk, and sponsorship agreements, among others. Known for his cross-border dispute capabilities, Mark Heaney is well-versed in hi-tech sector litigation. Neville Cordell bolsters the practice with his experience in managing a variety of disputes, while Marjan Noor specialises in life sciences patent litigation. Rafi Allos is also noted for his expertise in the life sciences space, as well as regulatory advice. Senior associates Tom Edwards and James Fox are also recommended, with the former regularly assisting clients with multi-jurisdictional patent disputes, and the latter’s strength lying in hi-tech and telecoms patent litigation. Another name to note is associate Erin Currie.

Practice head(s):

David Stone; Mark Ridgway; Jim Ford; Nigel Parker

Other key lawyers:

Neville Cordell; Mark Heaney; Marjan Noor; Rafi Allos; Tom Edwards; James Fox; Erin Currie; Alex Shandro; Alexandra Wyles


‘One of the very best international law firms genuinely providing top-quality full-service across the world.’

‘Calm, knowledgeable, hard-working and dedicated.’

‘Really high calibre associates which is important when they are often running cases day to day.’

‘James Fox is a standout associate. He is very good, very user friendly and knows how to communicate with all the moving parts in a case heading to trial; clients, Counsel, Court etc.’

‘Mark Heaney provides excellent strategic and legal advice. Neville Cordell is the go-to solicitor for FRAND-related issues.’

‘Allen & Overy is one of the top practices in the UK TMT patent litigation market. The size and breadth of the team is excellent, particularly the quality of the talent.’

‘They are good team players able to fit well with other firms and be part of the global litigation strategy. That said their own teams are expanding capabilities in Europe and the US which allows for cross-border larger projects.’

‘Marjan Noor is excellent and comes with vast amounts of experience, especially in biologics cases. She would be a go to partner for most important UK patent litigation cases. She knows the market and what the client wants very well and is on top of the latest trends and developments.’

Key clients


Eli Lilly


LG Electronics



Sterlite Technologies

Work highlights

  • Advising Regeneron in litigation against Amgen in the High Court. The proceedings are patent revocation proceedings against Amgen’s patents to binding molecules for BCMA and CD3 proteins. This is the only example we are aware of multiple independent innovative companies litigating a patent concerning a biologic medicine in parallel.
  • Advising Sterlite in a significant patent litigation matter against Prysmian, who alleged infringement of two of its patents relating to optical fibre cable design and seeks, among others, damages and an injunction.
  • Advising Exscientia on a range of IP collaborations, with a key focus of these projects being the protection of Exscientia’s platform technology, and the ownership and exploitation rights with respect to products containing compounds identified by the technology.

Bird & Bird LLP

Bird & Bird LLP’s expertise lies in the tech-centric sectors, routinely representing the largest global pharma, biotech and medical devices companies. Its work increasingly entails advising on the IP aspects of acquisitions, as well as the investment in or sale of businesses. Robert Williams and Rebecca O’Kelly Gillard lead the practice alongside Tom Snaith, who is well-versed in complex IP-rich transactions, including M&A, equity capital market and spin-outs, to name a few. Morag Macdonald provides clients with all forms of IP litigation and strategic advice, notably within an international cross border context, while Richard Vary is noted for his wealth of experience in the valuation of portfolios and FRAND. Another name to note is Katharine Stephens, who has considerable expertise in coordinating multijurisdictional patent litigation, as well as designing and implementing pan-European protection and enforcement programs. Christopher De Mauny strengthen the practice with his capabilities in handling hi-tech, life sciences and sustainable technologies. Toby Bond’s strengths lies in managing multi-jurisdictional patent disputes and developing litigation project management platforms. Jane Mutimear is also recommended.

Practice head(s):

Robert Williams; Tom Snaith; Rebecca O’Kelly-Gillard

Other key lawyers:

Morag Macdonald; Richard Vary; Katharine Stephens; Jae Park; Christopher de Mauny; Toby Bond; Jane Mutimear


‘They know the market, the key players and seem to have an insight into all the relevant matters in the TMT sector.’

‘Trustworthy, calm and thorough: Christopher de Mauny is excellent.’

‘Solution-focused and out-the-box thinking. They know how to add value and will provide additional services.’

‘They are exceptionally well-placed and ahead of the market when it comes to data commercialisation, implications and regulation. They think innovatively around client problems and solutions, how they offer their services, value add and how they support you.’ 

‘Impressive depth of industry knowledge.’

Key clients

Gilead Sciences




CureVac SE

The Broad Institute (‘The Broad’)

NEO Performance Materials

Teva UK Limited

Work highlights

  • Acted for Gilead in patent revocation and infringement proceedings against NuCana PLC over patents concerning the drug sofosbuvir. NuCana’s patents were directed towards cancer treatment although were asserted to cover the Gilead new class of antivirals products. Judgment was handed down on 21 March 2023 and held that the two patents were invalid on practically all grounds.
  • Acting for Nokia in patent infringement actions against Oppo in the UK, alleging infringement of 1 implementation patent and 3 SEP patents relating to 3G, 4G/LTE and 5G. Nokia won the jurisdiction challenge in 2021 and the two technical cases in 2022.
  • Acting for companies in the Dexcom group in relation to multiple patent infringement and revocation claims brought against them by Abbott Laboratories. 13 patents were originally in suit (now reduced to 7 owing to revocations at the EPO), to be heard over 3 separate technical trials. The patents involve both companies’ continuous glucose monitoring (CGM) devices.

Bristows LLP

Praised by clients as an ‘extremely experienced and very well-established’ team, Bristows LLP’s one-stop shop is notable for its capabilities in handling technology, life science and consumer products. The team is involved in cutting-edge work in SEP/FRAND cases, alongside pharmaceuticals, including important biologics and antibodies cases. On the transactional side, the team routinely handles IP deals including settlements, high value research collaboration and licensing deals, and IP aspects of corporate and JV transactions. Andrew Bowler and Myles Jelf jointly lead the patent litigation practice, the former is well-versed in coordinating global litigation and the latter is noted for his expertise in telecommunication and high tech matters. Matthew Warren leads the transactional side of the practice, his most notable work includes a landmark research collaboration and licence agreement between Oxford University Innovation and AstraZeneca. Claire Smith is another name to note on the transactional side. Liz Cohen’s strengths lie in the realm of life sciences, while James Boon is sought after by clients in the telecoms and high-tech sectors. Other patent litigation specialists include Gemma BarrettRichard Pinckney, Robert Burrows, Dominic Adair and Brian Cordery.

Practice head(s):

Andrew Bowler; Myles Jeff; Matthew Warren

Other key lawyers:

Liz Cohen; James Boon; Robert Burrows; Dominic Adair; Brian Cordery; Gemma Barrett; Claire Smith; Richard Pinckney


‘Bristows has an extremely experienced and very well-established IP team within a full-service firm – providing excellent support to all aspects of a case.’

‘Quality is at the heart of everything Bristows does.’

‘Stand-out partners are Myles Jelf and Richard Pinckney.’

‘Myles Jelf, Richard Pinkney and James Boon are all fiercely bright and really know their stuff in respect of telecoms and high category technical litigation. They foster teams that work hard and deliver the highest and most exacting standards. Always a pleasure to work with.’

‘They are involved with most of the high-profile litigation in this area and have an impressive client base.’

‘Bristows has an exceptionally strong team of patent litigators, with excellent individuals at both at partner and associate level. In my view it remains in the top patent litigation firms in the UK.’

‘Very personal advice. Adapted to our very specific business.’

‘They always try to find the best solution to our issues.’

Key clients







Scientific Drilling International



Carrick Therapeutics

Work highlights

  • Advising on a critical, high profile patent deal between AstraZeneca and RQ Bio to license-in new antibodies (developed in collaboration with Oxford University) to produce treatments to protect vulnerable people against new variants of Covid-19.
  • Advised Novartis on high-profile patent litigation relating to blockbuster medicine Gilenya, involving successfully arguing (for the first time) that a patentee can apply for interim injunctive relief before patent grant.
  • Advised Siemens Gamesa in relation to two prominent UK patent litigation cases which formed part of a global battle (a so-called “clash of the titans”) between it and General Electric in the increasingly important field of wind turbine technology. Wind energy is a crucial part of the UK’s energy policy for the future.

Hogan Lovells International LLP

The ‘amazing’ Hogan Lovells International LLP maintains a strong practice in pan-European patent litigation strategy alongside a strong transactional practice. The team is helmed ‘force of nature’ Paul Brown, who is sought out by clients for his expertise in patent-related disputes in the electronics and medical devices sector. ‘Superb’ Stephen Bennett is also in high demand with pharma companies for his considerable experience in handling disputes. Another notable name is Joel Smith, who has strengths in both contentious and non-contentious matters, with a niche expertise in plant variety protection and regulation. Patent litigator Daniel Brook routinely undertakes cross-border pharma litigation, notably representing Eli Lilly in a dispute regarding its cancer drug pemetrexed. Katie McConnell is noted for her expertise in the telecoms and pharma fields, while Stella Wong focuses on medical device, pharmaceutical and biotechnology patents, balancing her legal practice with her work as a doctor. Counsels Emma Fulton and Dominic Hoar are also recommended.

Practice head(s):

Paul Brown

Other key lawyers:

Stephen Bennett; Joel Smith; Daniel Brook; Katie McConnell; Stella Wong; Emma Fulton; Dominic Hoar


‘Hogan Lovells have a hugely experienced IP practice with considerable experience in telecoms work. The team is great to work with – everyone is friendly and there is a no nonsense approach that pervades the team.’

‘Paul Brown has vast experience of both the technical side of telecoms patent litigation and the FRAND licensing aspects. A really nice guy, fun to work with, manages his team well, but he also manages to keep abreast of the issues.’

‘Katie McConnell is a rising star and is particularly good with a difficult case – she never gives up.’

‘The best all-round patent litigators in London.’

‘Stephen Bennett is superb as the team leader and coordinator. He is well supported by Dan Brook and Katie McConnell.’

‘Always on top of the game. Very client and industry focused. Incredibly strategic thinking.’

‘Paul Brown is a force of nature in the telecommunications field. Very few know FRAND litigation better than Paul Brown.’

‘The whole team is amazing.’

Key clients

Guangdong OPPO Mobile Telecommunications Corp. Ltd & others (OPPO)


General Electric (GE)

Astellas Pharmaceuticals

Eli Lilly



British American Tobacco



Work highlights

  • Representing Astellas in litigation relating to its Betmiga product in the UK as part of its global litigation to maintain patent protection.
  • Representing Guangdong OPPO Mobile Telecommunications Corp. Ltd & others (OPPO), the largest smartphone manufacturer in China, on the UK aspects of two global disputes with Nokia and Philips in relation to the terms of the fair, reasonable, and non-discriminatory (FRAND) licenses.
  • Secured a comprehensive win for General Electric (GE) against Siemens Gamesa Renewable Energy (SGRE) in a patent dispute in the UK relating to GE’s latest generation of Haliade-X wind turbines.

Kirkland & Ellis International LLP

‘Top-class’ Kirkland & Ellis International LLP maintains a strong IP offering, routinely handling high-stakes disputes, one notable example being the team’s representation of Pfizer and Regeneron in landmark judgments in the Supreme Court. The team of ‘ferocious litigators’ also has experience of handling SEP/FRAND related litigation. On the transactional side, the team is involved in M&A deals, as well as multiple asset deals and carve-out transactions. Nicola Dagg spearheads the IP litigation practice, she has a wealth of experience in managing biotech patent litigations, as well as an expertise in emerging SEP/FRAND related work. Daniel Lim is noted for his ability to handle complex multijurisdictional patent litigation, often involving blockbuster life sciences and medical devices related matters, while IP litigator Steven Baldwin is well-versed in the high-tech and life sciences sectors. ‘Strategic thinker’ Jin Ooi fields a strong IP litigation practice, with his expertise in the biotechnology space. Emma Flett leads the firm’s technology and IP transactions team with her capabilities that encompass the full gamut of IP-related work, but especially in regard to high-value M&A transactions.

Practice head(s):

Nicola Dagg; Emma Flett

Other key lawyers:

Daniel Lim; Jin Ooi; Steven Baldwin


‘The Kirkland team is incredibly talented, hard-working and works well as a coherent unit to bring about the best results for clients.’

‘Nicola Dagg is the head of the IP team and is a force of nature. Amazing at bringing the work in she effectively manages her team to keep all the plates spinning.’

‘Jin Ooi has an extremely sharp eye for detail and a wonderful ability to connect points in a case. He is a deep and strategic thinker.’

‘Daniel Lim has a rare ability to cross-over from patent regulatory to patent litigation. He is highly recommended for his experience in pharmaceutical patent litigation.’

‘Steve Baldwin is a great lawyer who easily gets to grips with the most complex of telecoms litigation.’

‘Well resourced and capable team. There is real passion and dedication towards delivering a top-class service to clients.’

‘Kirkland & Ellis are pioneering litigators. They have a wealth of experience in the (legally and technically) most complex cases and are very much part of the cutting-edge litigation teams that are driving forward practice before the English courts. Their can-do attitude is second to none.’

‘K&E have enormous strength and enormous depth. Their reputation as ferocious litigators is well deserved, and their ability to create maximal pressure on opponents and to grasp strategic advantages when they arise is exceptional.’

Key clients


Lenovo & Motorola Mobility



British American Tobacco



Regeneron Pharmaceuticals

TCL Corporation





Meril Life Sciences

Adaptive Spectrum and Signal Alignment Inc. (ASSIA)

Advanced Bionics / Sonova



Work highlights

  • Representing Lenovo in a major worldwide SEP/FRAND licensing dispute between InterDigital and Lenovo / Motorola Mobility.
  • Advising and representing Astellas and Pfizer in relation to the protection of the blockbuster life-saving and -extending prostate cancer treatment Xtandi®, which generates multiple billion dollars (and growing) in sales every year.
  • Advising and representing Warner-Lambert, Pfizer, and Viatris (which now owns the LYRICA® portfolio) against the NHS in relation to the most complex follow-on damages inquiry ever to be heard before the Patents Court, raising novel issues of foreseeability, causation and mitigation.

Pinsent Masons LLP

Pinsent Masons LLP is a leading player in the patents space, with a growing team working with a similarly growing client base. The practice, which is commended for its ‘technical expertise and legal acumen’ as well as its gender diversity, has vast experience in sectors including energy, technology and telecoms. IP and life sciences head Clare Tunstall's practice exclusively focuses on life sciences - alongside her leadership of the team, she is also relationship partner for key patent litigation clients; a notable area of strength for the practice. Noted practitioners included Charlotte Weekes, who heads up the generics and biosimilars focus group, heavy-duty patent litigator Christopher Sharp, and Allistair Booth, who leads the life sciences transactional IP team. Mark Marfé is known for being ‘technically adept in the software and telecoms space'.

Practice head(s):

Claire Tunstall

Other key lawyers:

Charlotte Weekes; Christopher Sharp; Kristina Cornish; Gareth Morgan; Nicole Jadeja; Allistair Booth; Catherine Drew; Mark Marfé; Gina Bicknell


‘The IP team at Pinsent are an impressive bunch across the board both in terms of technical expertise and legal acumen. They are also industry-leading on the gender diversity front.’

‘Mark Marfé is a high quality individual. He is highly responsive, which is always greatly appreciated, and technically very adept in the software and telecoms space.’

‘Clare Tunstall and Charlotte Weekes are outstanding lawyers who know the pharmaceutical business inside out. They routinely provide the highest quality service.’

Key clients

Flynn Pharma

Teva Pharmaceutical Industries

Sandoz AG, Sandoz Limited

Bioeq AG / Formycon

Accord Healthcare

Chiaro Technology / Elvie

Advanced Cell Diagnostics

Safran Seats

LG Electronics

JUUL Labs Inc

Brita SE

East Anglia One

Sun Pharma

STADA Arzneimittel AG

International Biotechnology Trust

Work highlights

  • Advised Flynn Pharmaceuticals on proceedings against Mylan in relation to Circadin
  • Representing Teva in proceedings in the Patents Court against Bristol-Myers Squibb and Pfizer in relation to the blockbuster anticoagulant drug Eliquis.
  • Instructed by Accord, Sandoz and Teva in the parties’ actions against The Regents of the University of California for the revocation of a compound patent covering the basic structure of the first ever approved second generation antiandrogen enzalutamide.

Powell Gilbert LLP

Praised by clients for its ‘deep bench’ strength, Powell Gilbert LLP’s expertise spans numerous technical sectors, from pharma and medical devices to telecoms and electronics. The team handles an array of high-profile and complex litigation, two examples being Regeneron v Kymab and Unwired Planet v Huawei. Joint practice head, Penny Gilbert specialises in the life sciences field, which means she is regularly sought out by clients from this sector, while other practice head Simon Ayrton is recommended for his experience in handling heavyweight technical dispute resolution. Tim Powell is well-versed in representing a variety of clients in multijurisdictional patent litigation, with Zoë Butler’s strength in technology-related IP disputes, further bolstering the practice. Bethan Hopewell advises clients on issues arising from international technology standards, patent pools and associated licensing issues. ‘Impressive’ Ari Laakkonen’s broad range of experience encompasses FRAND obligations, licensing disputes, as well as general strategic advice. Peter Damerell specialises routinely assists clients on complex disputes that involve various technologies, with Tim Whitfield recommended for his pharma expertise. Alex Wilson, Siddharth Kusumakar, Tom Oliver, Joel Coles and Tess Waldron are also recommended.

Practice head(s):

Penny Gilbert; Simon Ayrton


‘The firm has a deep bench of lawyers with substantial experience in patent and design litigation. They are very good at preparing a complex case for winning in court and at devising a winning strategy.’

‘Ari Laakkonen is very impressive in all respects and is an outstanding litigator He has very extensive experience in patent litigation and masters every detail of a case. I would classify Ari as the best of the best for UK patent litigation.’

‘Very smart and analytic team; extremely diligent thinkers.’

‘Fast and precise.’

‘Boutique, specialist, commercially focused.’

‘Simon Ayrton and Tom Oliver are standout partners. Commercial, concise, perceptive and client focused.’

‘Alex Wilson; Uniquely good with clients, business oriented and strong on the matter vis-à-vis the opponent.’

‘We have worked with Tim Powell, Bethan Hopewell and Joel Coles – they are outstanding.’

Key clients

Philip Morris International

Ocado Group plc

Biogen Inc

Edwards Lifesciences

Illumina, Inc (2 cases)



Shenzhen Carku Technology Ltd


Cook Medical

AIM Sport

Saint Gobain






Oxford University and Oxford University Innovation Ltd

Work highlights

  • Advising Philip Morris International in its global patent dispute with BAT, including representing PMI entities in four UK patent actions involving 9 patents in total.
  • Representing Ocado in patent infringement, validity and entitlement proceedings against rival robotic warehousing operator, AutoStore.
  • Representing BioNTech in patent litigation relating to its SARS-CoV2 vaccine UK litigation against (1) Moderna and (2) CureVac will go to trial in the UK in the first half of 2024, with both of these companies seeking damages and BioNTech/Pfizer challenging the validity of the asserted patents.

Baker McKenzie

Baker McKenzie’s capabilities include representing clients on a variety of disputes, including those involving cosmetic and pharma products, vehicle safety technology and telecoms standards for mobile devices. Hiroshi Sheraton leads the practice, focusing on the life sciences, pharmaceuticals and biotech sectors, but with the capability to handle mandates across a range of industries. Senior associate Tanvi Shah’s breadth of expertise includes both contentious and transactional matters across a multitude of sectors.

Practice head(s):

Hiroshi Sheraton

Other key lawyers:

Tanvi Shah


‘An excellent team with some highly technical and capable lawyers.’

‘Tanvi Shah is an excellent lawyer with real understanding of the technologies her clients work in. She also shows great judgment and strategic thinking.’

Key clients


Eli Lilly






Novo Nordisk

Work highlights

  • Representing JCB in a claim for infringement of 5 patents relating to hydraulic safety technology applied to vehicles, against French competitor Manitou. Manitou was found to infringe one of JCB’s patents at first instance and the proceedings are now at the appeal and damages inquiry stage in the UK.
  • Advising Johnson Matthey in relation to patent litigation between its suppliers Solvay and Neo/Molycorp in respect of cerium oxide used in vehicle catalytic converters, including issues relating to the disclosure of Johnson Matthey’s confidential information in conjunction with the proceedings.


In the past year, CMS has advised on the issue of software and AI as a medical device, as well as a product launch strategy in respect of CBD products. The team boasts an impressive client roster in the telecoms, technology and life sciences fields, one example being Microsoft. On the non-contentious side, the team advises clients on the establishment of R&D collaborations and joint ventures in relation to patented technologies. The practice is jointly led by Mark Shillito, who has vast expertise in complex disputes, and Sarah Hanson, who has particular strengths in the life sciences space. Caitlin Heard specialises in technology related IP disputes, while Toby Sears strengthens the team’s SEP/FRAND capabilities alongside broad contentious and non-contentious experience. Joel Vertes is also recommended.

Practice head(s):

Mark Shillito; Sarah Hanson

Other key lawyers:

Caitlin Heard; Toby Sears; Joel Vertes

Key clients


Hydra Well

Mayborn (Tommee Tippee)

Mercury Pharma t/a Advanz

Estar Medical Ltd.

Foundation Medicine, Inc.

Work highlights

  • Retained by Microsoft to defend UK infringement proceedings in relation to key cloud architecture component.
  • Retained by Hydra Well to defend declaration of non-infringement proceedings for client’s key patent, in relation to a method for abandoning offshore oilwells.
  • Retained by Estar to defend infringement proceedings in a long-running, multijurisdictional and ground-breaking case.

Gowling WLG

Recommended for its ‘great commercial acumen’, the Gowling WLG IP practice, which is headed by Kate Swaine, has key strengths that include tech patent litigation, SEP/FRAND litigation and work in the life sciences field, to name a few. Alexandra Brodie is noted for her expertise in the technology sector, leading significant cases in the SEP/FRAND sphere, while Paul Inman has considerable experience in pharma patent infringement and revocation actions. Further strengthening the practice is Patrick Duxbury, who is well-versed in handling transactional matters, and Huw Evans, who routinely handles life sciences and technology related matters. Luke Kempton is particularly active in the biotech and pharma sectors, and Jamie Rowlands routinely represents a multitude of clients in global patent disputes, being especially active in the telecoms space. Matt Hervey and Nick Cunningham are also recommended. Jonathan Ball departed to Norton Rose Fulbright in June 2022.

Practice head(s):

Kate Swaine

Other key lawyers:

Alexandra Brodie; Paul Inman; Patrick Duxbury; Huw Evans; Luke Kempton; Jamie Rowlands; Matt Hervey; Nick Cunningham


‘I have no hesitation in recommending them for large cases and small.’

‘Alex Brodie is one of their top partners. Good strategic sense, good with clients, very commercial, but absolutely on top of all the legal detail too.’

‘Paul Inman was impressive – good command of detail and able to take the big decisions.’

‘Great commercial acumen and willingness to put the best litigation team together to meet client expectations. They have a diverse team with varying levels of experience which means that work can manage costs effectively.’

‘Huw Evans is one of the UK’s best known and experienced IP litigators. He is an excellent lawyer. He can offer innovative commercial solutions without always having to resort to litigation.’

‘Pat Duxbury is a recognised expert on patent licensing.’

‘A brilliant combination of technical know-how and litigation savviness, with excellent teamwork.’

‘Luke Kempton is great in the biotech and life sciences sphere.’

Key clients



BioNTech SE

Oxford BioTherapeutics

KU Leuven

Immedica Pharma AB

Amphista Therapeutics


Sosei Heptares

Work highlights

  • Advising InterDigital (“IDG”) in relation to its global dispute with Lenovo. The FRAND trial that took place in January and February 2022 was only the second ever FRAND trial after Unwired Planet.
  • Advised Astra Zeneca on its strategic collaboration with diagnostic company GRAIL, to develop and commercialize companion diagnostic (CDx) assays for use with AstraZeneca’s therapies.
  • Advised BioNTech on its third research, development and commercialization collaboration with Pfizer to develop the first mRNA-based vaccine for the prevention of shingles.

Herbert Smith Freehills LLP

The ‘smart’ and ‘knowledgeable’ Herbert Smith Freehills LLP practice is experienced in high-tech patent disputes alongside transactional matters such as licensing, R&D development and various projects. The team is known for its expertise in the telecoms and technology sectors. ‘Superb’ practice head Sebastian Moore, who splits his time between London and Milan, fields a strong practice in pan-European pharmaceuticals litigation. Andrew Moir is well-versed in complex, tech-dependent matters, and ‘strategic’ Jonathan Turnbull is noted for his work in litigation on behalf of R&D-based companies. ‘Impressive’ Andrew Wells’s life sciences expertise means he is sought out by clients in this remit, counting global pharma companies in his roster and consultant Sophie Rich remains a key contact in the team. Emily Bottle, Emma Sherratt and Julie Chiu are also recommended. Peter Dalton departed in February 2023 to join Stephenson Harwood.

Practice head(s):

Sebastian Moore

Other key lawyers:

Andrew Moir; Jonathan Turnbull; Andrew Wells; Emily Bottle; Emma Sherratt; Julie Chiu


‘The team is helpful, insightful and always asks the right questions.’

‘The people within the team are smart and think deeply about each of the issues put in front of them, so no points are left unaddressed.’

‘Their legal knowledge is excellent, and they combine it with excellent technical understanding Moreover, they are very easy to work with, which is always important.’

‘Andrew Wells is very impressive – he has excellent technical understanding of pharmaceutical cases and combines this with an incredible ability to remember and recall detail, which is valuable when there are multiple related actions ongoing.’

‘Round the clock option is excellent – using their Australian office (which is very strong) to manage cases over 24 hours in a tight squeeze. Very friendly, cohesive and knowledgeable team.’

‘Jonathan Turnbull makes himself available at short notice and is very generous with his time. He is a strategic thinker with an encyclopedic knowledge of SPCs.’

‘Sebastian Moore is superb. He will always put the client first and considers the full picture. He has a great deal of experience with global litigation, giving great strategic advice whilst always being on top of the details.’

‘Emily Bottle is superb. Highly experienced, able to sniff out an issue quickly and cut to the chase. She is highly organised and a great team leader.’

Key clients


R2 Semiconductor

Seoul Semiconductor

Gilead Sciences





British American Tobacco (BAT)

General Mills


Work highlights

  • Acting for Biogen as part of a multi-billion-dollar global dispute in relation to patent matters relating to Tecfidera (dimethyl fumarate), its treatment for multiple sclerosis.
  • Representing R2 Semiconductor in UK High Court proceedings enforcing its patent against Intel relating to on-chip voltage regulators comprising switched mode regulator circuitry and voltage spike protection circuitry.
  • Representing Millennium Pharmaceuticals and its licensee Johnson & Johnson in the pan-European defence of Velcade’s market exclusivity (bortezomib), a first in class drug used to treat multiple myeloma and mantle cell lymphoma.

Simmons & Simmons

A team that possesses ‘very strong technical IP and industry knowledge’, Simmons & Simmons leverages its technical strength to maintain a strong practice in the healthcare and life sciences sectors, alongside communications engineering technology including mobile phones and infrastructure. Michael Gavey leads the team, with experience in advising some of the largest biopharma clients on numerous transactions and disputes. Michael Burdon and Scott Parker are well-versed in the realm of patent litigation, with the latter primarily acting for pharma and biotech companies. Angus McLean stands out in the fintech arena, while Andrew Hutchinson’s life sciences expertise further strengthens the practice. ‘Exceptional’ Priya Nagpal routinely handles multijurisdictional disputes that involve disruptive technologies such as medical devices, software and big data, alongside particular expertise in digital health matters.

Practice head(s):

Michael Gavey

Other key lawyers:

Michael Burdon; Scott Parker; Angus McLean; Andrew Hutchinson; Priya Nagpal


‘Simmons have unrivalled expertise when it comes to digital health issues, especially on IP, data protection and regulatory matters.’

‘Priya Nagpal is a key contact at Simmons. Priya is an exceptional IP litigator and brings a wealth of experience and knowledge, enabling her to find elegant solutions to complex IP problems.’

‘Very strong technical IP and industry knowledge, and impressive drafting skills.’

Key clients

Boston Scientific Corp


Samsung Bioepis


Boston Scientific Corporation




Merck Sharp & Dohme




Regeneron.Ascendis Pharma

Work highlights

  • Advised Boston Scientific in a dispute with Cook Medical are engaged in a patent battle spanning the US, USPTO, Germany, EPO and the Netherlands. Boston Scientific is claiming that its patents (for endoscopic clips which prevent internal bleeding) have been infringed by Cook Medical’s Instinct Clip in multiple countries.
  • Advised GSK, Amgen, AstraZeneca, Merck Sharp & Dohme, Johnson & Johnson, Alnylam, Roche and Regeneron on a long term multi-million collaboration agreement with Our Future Health.
  • Instructed to defend Xiaomi in global SEP/FRAND litigation brought by Philips, an aggressive SEP portfolio holder.

Taylor Wessing LLP

Commended as an ‘excellent team’, Taylor Wessing LLP’s key areas of expertise encompasses the life sciences and hi-tech industries, regularly advising clients on a variety of contentious and non-contentious matters. The team is led by Nigel Stoate, who is noted for his patent litigation expertise, especially that which involves multiple jurisdictions across Europe. Patent litigation specialists Matthew Royle and Simon Cohen both possess considerable experience in the life sciences sector, while Alison Dennis is known for her ability to handle regulatory and transactional life sciences issues. Adrian Toutongi routinely assists clients with the negotiation and drafting of technology licence agreements, and Christopher Thornham’s capabilities include licensing strategies such as FRAND licence disputes. Another notable name in the practice is Tasmina Goraya, who is well-versed in a diverse array of contentious and non-contentious matters, from pharma regulatory issues to specialist agreements.

Practice head(s):

Nigel Stoate

Other key lawyers:

Matthew Royle; Simon Cohen; Alison Dennis; Adrian Toutongi; Christopher Thornham; Tasmina Goraya; Mike Washbrook


‘An excellent team.’

‘Nigel Stoate, Matthew Royle and Michael Washbrook are all excellent patent litigators and look after their clients very well.’

Key clients

Glenmark Pharmaceuticals Europe Limited





Shenzhen Senior Technology Materials Ltd

IP Group

Apollo Therapeutics

Various university and academic institute spin-outs

Hilton Foods Group PLC

Work highlights

  • Successfully represented Glenmark in preliminary injunction proceedings brought by Novartis in relation to its Gilenya product (fingolimod).
  • Acted for Ericsson in the UK in this high-profile patent infringement proceedings against Apple concerning 4G and 5G mobile telecoms technology and other implementation patents.
  • Defending OPPO, OnePlus and Realme in patent infringement proceedings brought by InterDigital. The underlying international dispute is high-value as it concerns the terms for a worldwide licence to InterDigital’s portfolio of patents relating to 3G, 4G and 5G technology.

Carpmaels & Ransford LLP

Covering the full spectrum of IP rights, Carpmaels & Ransford LLP’s ‘highly intelligent’ and ‘collaborative’ team is particularly noted for its expertise in advising healthcare innovators on EPO opposition defence and strategic prosecution. Heading the dispute resolution team is David Wilson, who is well-versed in the pharma and telecoms sectors, while Jake Marshall, who leads the IP transactions team, possesses numerous capabilities, from handling IP licensing deals to complex IP-heavy commercial arrangements. Ian Kirby has considerable experience in technology-related litigation. Camilla Balleny focuses on multi-jurisdictional patent litigation and life sciences-related advisory work. Jennifer Antcliff has successfully represented clients in leading life sciences cases in all courts up to, and including, the Supreme Court.

Practice head(s):

David Wilson; Jake Marshall

Other key lawyers:

Ian Kirby; Camilla Balleny; Craig Lumb


‘Very practical approach, client focused, collaborative.’

‘Camilla Balleny – strong litigation and coordination across the EU. Collaborative and client focused.’

‘Great IP expertise in Europe.’

‘Highly intelligent and strategic thinkers.’

‘Very approachable and expert teams in the life sciences area. Very focused on what is in the clients’ best interest.’

‘Carpmaels is a very well-balanced mixed firm with strong litigators and patent attorneys. That strength and balance allowed them to seamlessly handle UK litigation, coordinate global litigation, and handle multiple EPO opposition proceedings and appeals – despite the different skill set required for each.’

‘Ian Kirby did a great job managing a large team and clearly communicating strategy.’

‘Strategic thinkers, commercially savvy and strong litigation experience. Ian Kirby stands out in all three of these qualities.’

Key clients

Johnson & Johnson group

Bristol Myers Squibb (formerly Celgene)

FibroGen, Inc.

AMO Development, LLC (part of the Johnson & Johnson group)

Janssen-Cilag Limited (part of the Johnson & Johnson group)

Janssen Pharmaceutica (part of the Johnson & Johnson group)

Janssen Oncology (part of the Johnson & Johnson group)

Ethicon, Inc. (part of the Johnson & Johnson group)

The LYCRA Company

Olympus Corporation



Stichting Hubrecht Organoid Technology (HUB)

Work highlights

  • Achieving an important victory for FibroGen (FibroGen Inc. v Akebia Therapeutics Inc. and Others), in which the Court of Appeal found that FibroGen’s patents were valid on the ground of sufficiency, a decision with wider legal relevance. Akebia has since sought permission to appeal to the Supreme Court, which was granted on 3 October 2022.
  • Acting for Janssen Pharmaceutica (part of the Johnson & Johnson group) in the SPC and dosage regimen patent defence relating to blockbuster product XEPLION.
  • Advising on a patent licensing and master services agreement for FabricNano to safeguard the foundation of their technology and provide the contractual framework for commercialising that technology.


An ‘extremely capable and insightful team’, EIP is noted for its expertise in the sphere of FRAND litigation, with a significant success rate in the courts. ‘Totemic leader’ Gary Moss spearheads the practice, overseeing major litigation such as the recent win at the Supreme Court for Conversant and Unwired Planet in the Unwired Planet v Huawei and Conversant Wireless v Huawei cases. Andrew Sharples routinely represents clients in FRAND trials, and ‘highly recommended’ Robert Lundie Smith’s capabilities also extends to various issues such as litigating on medical devices and user interfaces. Kathleen Fox Murphy enjoys a strong practice in multi-jurisdictional litigation coordination, interim injunctions, infringement and validity litigation.

Practice head(s):

Gary Moss

Other key lawyers:

Andrew Sharples; Robert Lundie-Smith; Kathleen Fox Murphy; Alex Morgan


‘EIP have a broad and very experienced telecoms and technology team, which has run many of the leading cases in this field and virtually invented FRAND litigation in the UK.’

‘Gary Moss is a totemic leader, with enormous insight and experience in the TMT area. He has unrivalled experience, a highly commercial mind, and a tremendous strategic instinct.’

‘Robert Lundie-Smith is an excellent litigator, running a calm and measured ship even under the heaviest of pressure, with an excellent grasp of both detail and the wider strategic context.’

‘They are a solid operator in their particular niche.’

‘Robert Lundie-Smith is highly recommended. He is very hard-working, conscientious, and has a real understanding of the technical, legal and strategic aspects of the cases he is working on.’

‘EIP has an extremely capable and insightful team of lawyers and patent attorneys which generate real synergy as a result of their combined practice and insight into complex patent actions.’

‘The legal expertise of their solicitors and the technical insight of their patent attorneys bring real strength to their offering and work on challenging litigation.’

‘Alex Morgan is tremendously effective in the detailed analysis and consideration of case management he brings to patent litigation.’

Key clients



Solas OLED Ltd.

Godo Kaisha IP Bridge 1 (“IP Bridge”)


Unwired Planet International Limited

ThroughPuter Inc.

Work highlights

  • Representing Optis and Unwired Planet before the High Court and Court of Appeal in their long-running and ongoing dispute with Apple regarding the licensing of their patent portfolio. The dispute involves several technical and non-technical trials encompassing issues such as the validity, infringement, and essentiality of patents and FRAND licensing.
  • Representing Solas OLED before the Patents Court as part of in its multi-jurisdictional patent dispute with Samsung involving OLED display technology.
  • Representing ThroughPuter before the Patents Court against Microsoft.

Linklaters LLP

Particularly active in the healthcare, tech, consumer and industrial sectors, Linklaters LLP’s capabilities include cross-border patent disputes, alongside a strong non-contentious practice where the team advises on a variety of matters, including licensing and R&D agreements. Practice head Ian Karet is known for his litigation experience, especially within the pharma and tech sectors. Yohan Liyanage is well-versed in both patent litigation disputes and complex non-contentious mandates. Managing associate Stephanie Farrington’s expertise in the healthcare and life sciences arena means she routinely operates on complex, cross-border patent litigation.

Practice head(s):

Ian Karet

Other key lawyers:

Yohan Liyanage; Stephanie Farrington; Katie Coltart

Key clients




Regeneron Pharmaceuticals. Inc.

De Beers

ThermoFisher Scientific Inc.



Storm Energia Inc


Perfetti Van Melle


Aristocrat Leisure Limited

Reliance Industries Limited

Work highlights

  • Advised GSK on a high-profile and high value patent dispute in relation to an HIV drug, bictegravir.
  • Advising GSK on a high-value patent licence dispute relating to a cancer treatment.
  • Advising ThermoFisher on its £2.25 billion acquisition of The Binding Site Group, a UK-based specialty diagnostics business.

Marks & Clerk

On account of its expertise in the life sciences field, ‘excellent’ Marks & Clerk counts large pharma and biotech companies in its roster. Steering the practice is Mike Gilbert, whose patent litigation experience in the biotech, pharma and chemical sectors means he acts for numerous high profile biopharmaceutical clients. ‘Exceptionally experienced’ key contact Dafydd Bevan is active in the electronics, software, telecoms and mechanical sectors and is well-versed in high-tech and engineering patent litigation. Graham Burnett-Hall is noted for his ability to handle highly technical mandates, while Charlie Balme regularly handles patent and licensing disputes in the life sciences field. Associate Tom Taylor adds to the firm’s litigation expertise. Trevor Crosse departed in November 2022 to Osborne Clarke LLP.

Practice head(s):

Mike Gilbert; Dafydd Bevan; Graham Burnett-Hall

Other key lawyers:

Charlie Balme; Tom Taylor; Dan McGrath; Nicholas Fischer; Marcus Rigby Smith


‘At all times, I was made to feel at ease during our online and in-person meetings. They created a good environment for synergy.’

‘I was particularly impressed by the team work and methods structured by M&CL and the encouragement they gave during some of the more challenging aspects of the work.’

‘Dafydd Bevan is extremely knowledgeable in patent law, articulate and has an exceptional mannerism which made the process not only effective but enjoyable for me. His knowledge and ability to explain the patent concepts for my benefit were very impressive.’

‘Tom Taylor handled his role very professionally and with great ease. Tom and Dafydd’s combined input to the process was exceptional and key to ensuring the final version of my report was robust and accurate.’

‘An experienced firm which has both excellent contentious and non-contentious services.’

‘Dafydd Bevan is exceptionally experienced and goes beyond expectations to deliver a brilliant service.’

‘A skilled team.’

‘Dafydd Bevan is brilliant.’

Key clients


Manthorpe Building Products



Owen Mumford

Work highlights

  • Represents leading heavy equipment manufacturer Manitou in a multi-jurisdictional, high value patent infringement and validity action brought by JCB.
  • Acted for Owen Mumford in opposition proceedings before the EPO Technical Board of Appeal in an appeal filed by Novo Nordisk.
  • Acted for Manthorpe Building Products in High Court patent infringement proceedings relating to specialist building products.

Mishcon de Reya LLP

An ‘excellent team with huge experience’, Mishcon de Reya LLP’s capabilities include the full gamut of contentious and non-contentious issues, assisting clients from technology-rich sectors such as pharma, telecoms and engineering. Steering the team is David Rose, who specialises in rights protection and enforcement programmes across a variety of IP, alongside possessing vast experience in litigation. Key contact Campbell Forsyth, regarded as a ‘force to be reckoned with’, is well-versed in issues such as cross-border strategy and exploitation, among others. Jeremy Hertzog routinely represents clients in the fields of pharma, technology, software, fashion and luxury goods, whilst Gareth Dickson is noted for his expertise in handling the resolution of disputes for innovators and entrepreneurs, as well as his work in the technology sector. Patrick Farrant is particularly active in the life sciences space. Counsel Justin Lambert is another name to note.

Practice head(s):

David Rose

Other key lawyers:

Campbell Forsyth; Jeremy Hertzog; Gareth Dickson; Patrick Farrant; Peter Nunn; Cassandra Hill; Justin Lambert


‘Campbell Forsyth is a force to be reckoned with. In complex patent litigation, he has a unique ability to keep all the interrelated points in his head to ensure his advice is robustly stress-tested.’

‘I would recommend Justin Lambert to others and I consider him to be an excellent litigator.’

‘An excellent team with huge experience.’

‘Justin Lambert is able to assimilate different areas of technology without apparent difficulty. I would highly recommend him to clients.’

‘David Rose is at the top of his game – a statesman of the IP profession.’

‘Justin Lambert is a skilled litigator. He comes up with arguments and approaches to issues that others do not consider.’

Key clients

Dr Reddy’s Laboratories



Work highlights

  • Acting for Dr Reddy’s Laboratories (UK) Limited in a significant follow-on cross-undertaking damages claim against Warner-Lambert in relation to its invalid pregabalin second medical use patent.
  • Acting separately for Zentiva Pharma UK Limited and Dr Reddy’s Laboratories (UK) Limited in a multi-party pharmaceutical dispute regarding a patent for a dosage regimen relating to fingolimod.
  • Acting for a multinational technology company on a significant patent infringement dispute in the Patents Court.

Osborne Clarke LLP

A team noted for its deep sector expertise, Osborne Clarke LLP’s practice has recently been involved in mandates involving FRAND and SEP litigation. Experienced litigation specialist Arty Rajendra leads the department, while Tim Harris is noted for his expertise in the life sciences, pharma and biotech sectors. Will James bolsters the practice with his capabilities in handling litigation for large tech-driven companies, notably in the life sciences, electronics and medical devices fields. Trevor Crosse joined from Marks & Clerk in October 2022.

Practice head(s):

Arty Rajendra

Other key lawyers:

Tim Harris; Will James

Key clients




Anstar Limited

Escaux NV


Kantar Group

Work highlights

  • Acted for Optis in its high-profile multi-trial telecoms FRAND dispute with Apple.
  • Advising Amgen in relation to multiple biopharma disputes, including its global litigation with Sanofi and Regeneron relating to cholesterol-lowering antibodies.
  • Advised Escaux NV, a subsidiary of Destiny NV, in relation to a patent dispute concerning web-enabled telecommunication systems.

Stephenson Harwood

Counting big pharma and biotech clients in its roster, ‘excellent’ Stephenson Harwood fields a strong practice in the life sciences arena, alongside notable expertise in handling cross-border litigation. Its key areas of work include advising clients on complex licensing arrangements and other transactions, as well as any disputes that arise from these. Practice head Alexandra Pygall is praised by clients for her ability to provide ‘commercial advice’ as well as her ‘great knowledge of the law’. Naomi Leach is well-versed in complex IP licensing and collaboration agreements, and Rob Jacob’s extensive litigation experience is recommended, notably on a global scale and routinely involving cutting-edge issues. Peter Dalton joined the team in February 2023 from Herbert Smith Freehills LLP.

Practice head(s):

Alexandra Pygall

Other key lawyers:

Rob Jacob; Naomi Leach; Peter Dalton


‘An excellent team for transactional IP. They have expertise in all aspects of IP law, with an unusual expertise in plant variety law.’

‘Alexandra Pygall is client focused, with commercial advice. She has a great knowledge of the law and uses that in a way that is extremely helpful to her clients.’

‘Pure excellence. I am always very pleased with the collaboration with the team of SH, either as the instructed party or the instructing party.’

‘Always available and always with clear advices based on thorough understanding of the legal and commercial context of the relevant matter.’

‘Really strong commercially focused advice delivered efficiently and at good value. Good knowledge of complex areas of law.’

‘Alexandra Pygall is a highly experienced IP specialist, with a scientific background – she understands the issues we face. Her advice is clear. She has a pragmatic, commercial approach to contracting.’

‘Rob Jacob is one of the best in London.’

‘Naomi Leach has a good mix of commercial, data privacy and tech experience. Laura Elliott is a dependable and unflappable associate.’

Key clients

Haleon plc

GlaxoSmithKline plc



The Dr Wolff Group

easyGroup Limited

Gap, Inc

Oxford Biomedica

Shield Therapeutics Plc

Acacia Pharma

Novacyt A.S.

The Duracell Company

Highview Power

Privatstiftung Lauda

Perfetti van Melle

CLS Group


AM-Pharma B.V.

GroundTruth Global Ltd

Stochastico Limited

BXT Accelyon

Ahoy Club

B&CE Holdings Limited

BicycleTx Limited

GE HealthCare


Work highlights

  • Advised Bicycle Therapeutics on its recent strategic collaboration agreement with Novartis to discover and develop multiple targeted radioligand therapies in oncology. Bicycle will receive a US$50 million upfront payment. It is also eligible to receive development and commercial-based milestone payments totalling up to US$1.7 billion, as well as tiered royalties on Bicycle-based medicines commercialised by Novartis.
  • Advised Oxford Biomedica plc in relation to critical and time sensitive arrangements for the manufacture of the AstraZeneca/Oxford University coronavirus vaccine.
  • Advised energy services group Altera in relation to the negotiation of the IP aspects of an Engineering, Procurement and Installation agreement and bareboat charter contract for the electrification (i.e. decarbonisation) and life extension of a large floating, production, storage and offloading vessel (‘FPSO’) called the Petrojarl Knarr.

Wiggin LLP

Wiggin LLP’s ‘friendly and engaging’ team is renowned for its technology and media sector expertise and is also capable of acting across a diverse range of other sectors, from film and music to pharma and gaming. Leading the practice is Sara Ashby, who advises on patent enforcement and strategy with extensive experience in the litigation sphere. Key contact Calum Smyth’s range of expertise encompasses software patentability, technology transactions, brand protection, M&A and structuring issues, whilst Michael Browne’s broad experience extends from patent entitlement disputes and various other proceedings, to drafting and negotiating joint development, licensing and franchise agreements. Associates Georgina Hart and Sinclaire Marber Schäfer are other names to note in the practice, the latter joining from Kirkland & Ellis International LLP in May 2022.

Practice head(s):

Sara Ashby

Other key lawyers:

Calum Smith; Michael Browne; Georgina Hart; Sinclaire Marber Schäfer


‘Fantastic boutique IP firm with some exceptional lawyers. Friendly and engaging lawyers who provide excellent commercial and strategic advice. Very strong in patent matters.’

‘An extremely experienced IP team, many individuals with decades of experience litigating the full range of IP and TMT disputes. They have technical, and industry related expertise coupled with excellent knowledge and judgment.’

‘Michael Browne has outstanding analytical skills that enable him to identify the key issues in the most complex of cases, enabling the team to focus on what really matters, and then use his knowledge, experience and judgment to develop a winning strategy for the client.’

‘Sara Ashby is extremely clever and has decades of experience as an IP litigator dealing with some of the most difficult and wide-ranging cases. Her sound judgment and sage advice enables clients to achieve the best possible outcomes.’

Key clients


Permavent Limited & Greenhill Industrial Holdings Limited

Evolution Gaming

Sage Group Plc

Thought Machine Group Limited

Work highlights

  • Acted for 3M in patent revocation proceedings before the High Court.
  • Acted for Lacuna Space Limited in High Court litigation relating to cutting edge satellite communications technologies.
  • Advised Evolution Gaming on the IP aspects of its acquisition of gambling technology provider Transigo Limited (t/a Digiwheel).


Regarded as a ‘hugely experienced’ and ‘innovative’ team, WilmerHale maintains a strong practice in the tech space, handling numerous different types, from mobile phones to pharma products. Recent examples of contentious work include some large multijurisdictional patent litigation, working on cutting-edge SEP/FRAND issues. Justin Watts helms the team with vast experience in litigation, being particularly active in the pharma, medical devices, biotech, communications and hardware and software industries. ‘Calm and motivating team builder’ Anthony Trenton routinely leads on complex litigation, and Matthew Shade also possesses capabilities across pharma, medical devices, consumer electronics and technology spaces. ‘Clear star of the future’ Annsley Merelle Ward, who was promoted to partner in January 2023, counts innovative technology companies in her roster; she also possesses significant expertise in cross-border litigation. Associate Christina Guazzi is also recommended for her capabilities across life sciences and consumer electronics sectors.

Practice head(s):

Justin Watts

Other key lawyers:

Anthony Trenton; Annsley Merelle Ward; Matthew Shade; Christina Guazzi; Delicia Clarke; Alex Calver; Ashley Cameron


‘A hugely experienced international team uniquely capable of handling effortlessly the largest and most complex IP litigation.’

‘Anthony Trenton is unbelievably hard-working and truly exceptional in managing huge multi-disciplinary litigation for international clients.’

‘Annsley Merelle Ward takes her well-deserved role as a partner – a clear star of the future and one to watch.’

‘Justin Watts is unbeatable on complex technology patents.’

‘A tireless and innovative team – at the forefront of developments in the standard essential patents/FRAND space; always alert and alive to new arguments, developments and opening that will get the result for the clients.’

‘Anthony Trenton is a calm and motivating team builder, ensures everyone’s contribution is acknowledged and valued.

‘Annsley Merelle Ward – a font of patent law/FRAND knowledge and fresh ideas. Totally committed to client service, flexible and hugely impressive in her ability to find ways to balance the client’s wider business concerns with the requirements of the particular case.’

‘Alex Calver is a clear star of the future and a pleasure with whom to work.’

Key clients

Bristol-Myers Squibb

Arnold & Porter

Arnold & Porter’s expertise centres on patent litigation, noted for their work in handling long-standing mandates in the life sciences sector. Beatriz San Martin helms the practice, enhancing the practice with her vast experience in the life sciences field alongside an ability to handle various technologies. Ewan Townsend counts various biotechnology and pharma companies in his client roster, while associate Shishu Chen routinely advises clients on enforcing and defending patents.

Practice head(s):

Beatriz San Martin

Other key lawyers:

Ewan Townsend; Shishu Chen


‘Skilled and professional and very good communication skills.’

‘Beatriz San Martin is very skilled at leading a litigation team and has both a great eye for the detail and also the bigger commercial picture. She is extremely knowledgeable and a pleasure to work with.’

‘The IP team at Arnold & Porter are just excellent; fully thought out advice which clients can rely on.’

‘Beatriz San Martin is truly exceptional in the IP field. Her technical background places her in a unique position to advise life science clients. Her breadth and depths her indispensable to clients seeking solution in relation to IP disputes.’

‘A growing, agile team, who are capable across the spectrum of IP work. The team has a deep level of knowledge, particularly in the life sciences area. They are collaborative and innovative in the way they work, putting together the right group for each project.’

‘Beatriz San Martin is responsive and creative. She has in depth knowledge of all IP rights, enabling her to work on almost any project that comes her way. Her life science sector specific knowledge is second to none.’

‘Deep level of technical and legal expertise.’

‘I work with Beatriz San Martin and I value her opinion deeply, as she is exceptionally bright and talented beyond her day-to-day activities.’

Key clients

Basketligaen (Danish Basketball League)

Bosnia and Herzegovina Football Federation

Federatiei Romane de Folei (Romanian Volleyball Federation)

IMG Data Limited






Recommended by clients for its ‘deepness of knowledge’, Dentons is known for its work in the UK courts, having handled various High Court proceedings. Justin Hill helms the practice, often acting for world class tech companies in patent portfolio matters. Counsel Marie Jansson-Heek has advised clients on opposition and appeal proceedings, while senior associate James Marsden’s experience encompasses enforcement and licensing advisory work.

Practice head(s):

Justin Hill

Other key lawyers:

Marie Jansson-Heek; James Marsden


‘The topic of a patent was very complex. This deepness of knowledge allowed them to draft very compelling and tangible application.’

‘Great customer service and advocacy.’

‘Commitment to my company as a client and effort to learn our business, competitors, and technology.’

Key clients

Starkey Labs

Positec Tool Corporation




Eckoh plc

Opteran Technologies


Naked Energy


Work highlights

  • Defended oppositions and manage the European patent portfolio for Starkey Labs, the largest hearing aid manufacturer in the world. This mandate includes dealing with cutting-edge technologies associated with hearing aid iPhone integrations, novel materials, algorithms, and artificial intelligence.
  • Advising Dexcom on UK, German and US patent litigation involving our long-standing client Dexcom and Abbott diabetes care. Dexcom followed Justin Hill and Marie Jansson-Heeks from Olswang and have engaged them in contentious litigation support across multiple jurisdictions as well as numerous contentious opposition proceedings before the European patent office.
  • Working with Arqit to develop and protect its technology.

AA Thornton

‘Superb’ AA Thornton’s expertise encompasses patent disputes, patent prosecution and opposition work, as well as the management of global patent portfolios. Practice head Geoff Hussey routinely advises clients in relation to IP ownership structures and licensing, amongst other matters. Other recommended lawyers include Adrian BennettCraig Turner and Mike Jennings, who all possesses extensive litigation experience. Daniel Byrne has worked on telecoms, pharma and renewable energy patent litigation.

Practice head(s):

Geoff Hussey; Adrian Bennett; Craig Turner; Mike Jennings

Other key lawyers:

Daniel Byrne


‘Geoff Hussey has a good grasp of strategy, and dealing with clients.’

‘Superb service every time.’

‘Their unique combination of expertise, innovation, and client-centric approach sets them apart from other firms. Potential clients would be delighted to know that the team’s strengths lie in their deep understanding of the biotech landscape and their ability to provide comprehensive support for both contentious and non-contentious patent matters.’

‘Their knowledge, dedication, and exceptional qualities differentiate them from their competitors. I have valued their professionalism, expertise, and proactive approach to meeting our company’s IP needs.’

‘Specifically, Craig Turner at AA Thornton has been an invaluable asset to our patent strategy. Their in-depth understanding of our business and industry has allowed for tailored advice that aligns perfectly with our commercial objectives.’

‘Daniel Byrne deserves special mention for his exceptional negotiation skills in licensing deals. Dan’s expertise in patent licensing and business acumen have made them an outstanding partner in our licensing endeavours.’

‘The team have excellent knowledge in a wide variety of technical areas as well as their patent knowledge.’

Key clients

Oil States International Inc.

Lisa Dräxlmaier

Zaun Limited

DeLaval Holding AB

Cambridge Quantum Computing Limited

Robert Bosch GmbH

Estée Lauder (ELC Management LLC)


Sol-Gel Materials and Applications Ltd

Marston Holdings

Work highlights

  • Advising Lisa Draxlmaier GmbH in the only judgment from the UK court applying the principle of a useful purpose to the seeking of a statutory declaration in patent law (in this case a sought declaration of non-infringement under s71 of the Patents Act).
  • Advising Zaun Limited on an appeal to the main CJEU from the General Court in a case that concerns the interaction between patent rights and design rights and in particular how the disclosure in a patent can influence the issue of technical function of a design.
  • Acted for the opponent DeLaval Holdings AB in its complete revocation at the European Patent Office of a competitor patent, where the decision to revoke was based on a ground of opposition which is rarely successful – lack of sufficiency.

Clifford Chance LLP

Clifford Chance LLP’s broad offering encompasses an array of advisory, disputes and transactional work. Stephen Reese helms the ‘excellent and engaging’ practice with considerable experience advising clients on both contentious and non-contentious aspects as well as being particularly active in the healthcare and life sciences sectors, while Vanessa Marsland is well-versed in handling brand-related patent work. Don McCombie joined in June 2022 from Ashurst, bolstering the practice with expertise in handling IP disputes and transactions.

Practice head(s):

Stephen Reese

Other key lawyers:

Vanessa Marsland; Don McCombie


‘An excellent and engaging team of great individuals who deliver a highly friendly and professional service.’

‘Professionalism and reliability truly sum up our incredible experience with Clifford Chance.’

‘Whoever we need to engage with, the reassurance, peace of mind and level of client service we receive is exceptional. The various areas of expertise within Clifford Chance always work well together to support us as a client and understand our needs, perspective and queries really well.’

‘These individuals are proactive in bringing matters to our attention that we may have otherwise been unaware of. This ability to be so solution focused helps us to operate successfully and mitigate and manage risks.’

Key clients

Cyprus Government and the Foundation for the Protection of the Traditional Cheese of Cyprus Named Halloumi



Goldman Sachs




Invictus Games Foundation

Ultrahuman Healthcare Private Limited

LZ Labs





UK Government

Kuwait Food Company

Huawei Technologies


WSH Services Holding Limited

Infracapital Greenfield Partners II

Fujitsu Services

Baker Hughes

Public Investment Fund

Work highlights

  • Advised Vectura Group plc on the public takeover by Philip Morris SA of Vectura Group plc. The firm’s IP group were involved in the workaround reviewing Vectura’s complex set of patent assets and patent licensing arrangements concerning its products.
  • Retained to advise a software development company on the enforcement of their patents filed with respect to digital encryption technologies.
  • Advised a pharmaceutical client on the patent aspects of innovative artificial technologies being used in the field of drug discovery and drug development activities.

Clyde & Co

Clyde & Co maintains a strong niche offering, handling matters on the generic side of the life sciences sector, as well as being active in the veterinary field, advising on cancer treatments and fungal infections. The ‘very experienced’ team also handles transactional matters, conduct patent freedom-to-operate and due diligence related work. Practice head Ralph Cox regularly advises biotech and pharma companies, particularly in the veterinary field, while Chris Williams is active across a multitude of sectors, including marine, energy and natural resources.

Practice head(s):

Ralph Cox

Other key lawyers:

Chris Williams


‘Very experienced in dealing with complicated patent matters, in particular related negligence claims.’

‘Ralph Cox has unparalleled knowledge of patent practice, and so can guide the client through the whole process seamlessly. Very good relationships with the client and can support them at all times.’

Key clients

Oxford Nanoimaging Limited

Presspart Manufacturing Ltd

Work highlights

  • Advising Presspart Manufacturing on an evidence request from a US court with conduct of patent infringement proceedings concerning inhalers.

DLA Piper

In the fields of IoT and 5G technologies, as well as the wider litigation and licensing arenas, DLA Piper is notably experienced in handling standard essential patents. The ‘commercially aware’ team is also particularly active in the life sciences sector. Ruth Hoy spearheads the practice, with Deborah Bould’s expertise in patent and trade secret advisory, transactions and disputes, often handling multijurisdictional matters bolstering the practice. Rebecca Lawrence is recommended for her expertise in patent litigation.

Practice head(s):

Ruth Hoy

Other key lawyers:

Deborah Bould; Rebecca Lawrence


‘Rebecca Lawrence works extremely hard for her clients, is very knowledgeable and a very good litigator. She always goes the extra mile.’

‘DLA Piper’s IP teams are of the highest quality. They display expertise and focus across the board. They are commercially aware and fight hard for the commercial interests of their clients. Furthermore, they are up there with the best IP groups.’

‘Deborah Bould works tirelessly on her cases and is impressive in her ability to manage multi-jurisdictional litigation. She is a talented strategist and technically very able.’

‘Rebecca Lawrence is a very able partner and patent litigator. She is strategically astute and always focussed on the client’s commercial goals.’

‘Ruth Hoy is an experienced and very knowledgeable partner who is effective and efficient at achieving results.’

‘Absolutely committed to client’s cause with a good team of able and experienced individuals especially for electromechanical patents. Rebecca Lawrence and outstanding intellect working alongside Deborah Bould who keeps the team efficient.’

‘DLA Piper has a highly experienced team of patent litigators, with the knowledge to engage in disputes of all levels of technical complexity.’

‘They bring the same rigour, zest and analytical focus to the more niche, specialist areas as they do to the big deals. They take the time to get to know us as a client, and that reflects in the astute, tailored advice which we are privileged to get from them.’

Key clients



Premier League

British Airways


LG Electronics

Cancer Research UK and Cancer Research Horizons

Safestand Limited

Alumasc Group plc

RPS Group

Euro Caps


ADM Group

Frixos Metal Works


Work highlights

  • Achieved an outstanding global settlement for Honeywell, a Fortune 100 company, worth $360m against Zebra Technologies for infringement of Honeywell’s patent portfolio protecting digital imaging of 1D and 2D bar codes using low-cost CMOS image sensors. The trial was listed for March 2023 (the matter settled prior to trial).
  • Acting for Safestand in High Court litigation concerning alleged infringement of 3 of Safestand’s patents and 3 of Safestand’s registered designs by a competitor in the building industry. The trial is listed for June 2023.
  • Acting for Alumasc in High Court litigation, defending Alumasc from an infringement claim by Manthorpe in respect of a radiator utility pipe outlet plate. The trial was listed for January 2023 (the matter settled prior to trial).


Recent highlights of Fieldfisher’s practice is capable of advising clients on numerous patent infringement disputes. Tommy McKenna leads the practice, with experience acting for high profile clients in a variety of disputes. Senior associate Christopher Leung’s strengths lie in the life sciences field, and he is well-versed in handling patent proceedings. Former practice head David Knight departed the team to join Brown Rudnick LLP in November 2022.

Practice head(s):

Tommy McKenna

Other key lawyers:

Christopher Leung

Key clients

MGA Entertainment


Ocean Harvest Technology Group PLC

Work highlights

  • Advising MGA Entertainment, a global designer and distributor of children’s toys, on a claim against it for unjustified threats of patent infringement, alongside parallel competition law claims. The trial is set down for October 2024.
  • Advising Deltatre, a world leading sports and entertainment technology provider, on the patent infringement assertions made against a customer.
  • Acting for Randox, defending a complex US patent infringement claim brought in Northern District of Alabama, Southern Division. The claim has been brought by two Plaintiffs against five Defendants.

Lewis Silkin

Capable of handling patent disputes, licensing and agreements, Lewis Silkin’s patent practice is particularly active in the life sciences, manufacturing, technology, retail and media sectors. The practice is led by Tom Gaunt, who has considerable experience assisting clients with mechanical, electrical and software patents. Antony Craggs focuses on patent litigation, whilst Paul Williams strengthens the team with his background in the chemistry sphere.

Practice head(s):

Tom Gaunt

Other key lawyers:

Antony Craggs; Paul Williams


‘We have been very happy with the quality of the work to date.’

‘Paul Williams has been very responsive and understands the sector we operate in extremely well. He has helped us remediate some of our documentation and helped shape our approach.’

Key clients


Future Injection Technologies

Britvic Soft Drinks Limited



Concrete Floor Products

TDK Lambda

Janssen Pharmaceutica

Biosensors International Limited

Cascade Water Products Limited


Work highlights

  • Advising Future Injection Technologies following proceedings in the Intellectual Property Enterprise Court alleging that its patent was infringed, and confidential information misused by Owen Mumford’s Aidaptus® autoinjector.
  • Advised NRG on the defence after Exertis issued proceedings alleging that its rights were infringed by NRG’s MOUNTSTOM range.
  • Advised Vida XL on the defence after Core Products issued proceedings alleging that its rights were infringed by one of VidaXL’s ranges.

Potter Clarkson LLP

Recently established in 2021, Potter Clarkson LLP has boasted its practice with the addition of large pharma clients to its roster, as well as an increasingly involved in complex litigation concerning issues of mechanical patents, amongst others. The practice includes lawyers based in both London and Nottingham. Practice heads Mark Kramer, Nick McDonald and Richard Roberts all have extensive experience in the litigation sphere. Oliver Laing’s strengths are prominent in the non-contentious side of the practice.

Practice head(s):

Mark Kramer; Nick McDonald; Richard Roberts

Other key lawyers:

Oliver Laing

Key clients

Astellas Pharma Inc.

Bestway Inflatables & Material Corporation

TrailerLogic LLC

ICON Health and Fitness, Inc.

Work highlights

  • Instructed by Astellas Pharma Inc on their litigation strategy, both globally and in the UK – due before the Supreme Court in March 2024.
  • Acting for Trailer Logic LLC in a complex patent infringement case of crucial significance to the client.
  • Acting for ICON Health & Fitness, Inc. in high-value cross-jurisdictional patent infringement proceedings, against Peloton Interactive In., in a matter generating nuanced procedural and jurisdictional questions.

Venner Shipley LLP

Routinely assisting a variety of clients, including universities and start-up companies, Venner Shipley LLP’s patent practice is capable of handling patent portfolio and licensing issues. Practice head James Tumbridge is well-versed in IP disputes, as well as a more niche expertise in IP government relations advice. Robert Peake is another key name to note.

Practice head(s):

James Tumbridge

Other key lawyers:

Robert Peake

Key clients

Imperial College London

FiberLean Technologies

Vax Equity Global Health



Work highlights

  • Advised FiberLean’s on contractual matters and contentious commercial matters.
  • Advised Imperial College spin-out company, VaxEquity Limited, on commercial collaborations emanating from this fast-moving (and a confidential) project.
  • Advised Neuro-Bio Ltd on the monetisation of the company patent families and options for assignment and/or licensing to a new company in a different therapeutic field.

Womble Bond Dickinson (UK) LLP

The Yorkshire-based patent practice of Womble Bond Dickinson (UK) LLP is praised for its expertise across an array of sectors, from consumer goods to technology, as well as its ability to handle work in a ‘critical and intelligent manner’. James Love leads the team, with extensive experience in litigation, while Isabel Davies and associate Rose Smalley-Gordon are also recommended.

Practice head(s):

James Love

Other key lawyers:

Tim Barber; Isabel Davies; Rose Smalley-Gordon


‘Being very adept at case management and the application in a critical and intelligent manner, evidence to the issues.’

‘James Love is prudent and thorough.’

‘Rose Smalley is extremely well organised.’

Key clients


Alexander Duckham & Co., Limited (Duckhams Oils)

NCR Corporation

University of West of England

Sterling Pharma Solutions


Work highlights

  • Advising Geofabrics Limited in a patent case which went through a High Court trial, an appeal to the Court of Appeal, and then a second High Court trial on quantum. The client was awarded £13.4 million in damages.
  • Advising NCR Corporation on its IP in the UK.
  • Advising Alexander Duckham & Co. Ltd (Duckhams Oils) in relation to searching, filing and prosecution of applications. The team also provides advice in relation to licence agreements.

Charles Russell Speechlys LLP

Capable of acting for a range of clients, from blue-chip multinationals to emerging technology companies, ‘reliable’ Charles Russell Speechlys LLP has particular expertise in regard to international licensing deals. Practice head Mary Bagnall is vastly experienced in handling patent litigation in relation to a variety of technologies, while senior associate Caroline Young specialises in the commercialisation of IP and technology matters.

Practice head(s):

Mary Bagnall

Other key lawyers:

Caroline Young


‘Charles Russell Speechlys have kept us well-informed about the state of cases.’

‘As a firm, they are pragmatic, reliable and are quick to respond to queries, providing accurate and concise information.’

‘Caroline Young has helped us with client referrals and has made collaborating easier than we would otherwise have expected. We look forward to continuing working with her due to her responsiveness and ease of communication.’

Key clients

Avicenna Group

Apollo Aerospace Components

Rentschler ATMP Limited

Rentschler Biopharma

Immodulon Therapeutics Limited

Apacor Limited

Dentsply Sirona

Trafalgar Scientific

Work highlights

  • Advising Rentschler, an independent contract manufacturer for the development and production of biopharmaceuticals, on a range of commercial contracts with IP as a key focus.
  • Advising Immodulon (a leader in immuno-oncology) on a range of contracts relating to its proprietary intellectual property.

Keystone Law

Keystone Law is noted for its ability to handle complex disputes involving a full spectrum of issues. Simon Chalkley is noted for his expertise in managing transactions relating to the commercial exploitation of various IP rights. Rebecca Halford-Harrison bolsters the practice with her strengths in assisting chemistry-based industry clients. Lucy Harrold and Robert Pocknell are also recommended.

Other key lawyers:

Rebecca Halford-Harrison; Simon Chalkley; Lucy Harrold; Robert Pocknell


‘They make very stressful decisions feel like a walk in the park.’

‘For IP, I really rate and trust Rebecca Halford-Harrison. It’s a huge pleasure to work with her. She’ll give a quick steer if that’s all that’s needed, but is a go-to person when you have a serious problem that seems unsolvable.’

‘I’ve instructed a number of top tier firms and the quality of advice I get from Keystone is on a par with the best advisers, but at a much lower cost.’ 

‘Rebecca Halford-Harrison is quick-thinking and razor sharp. It really helps that she has a scientific way of thinking so gets the technology and its functionality quickly so gets to the heart of the problem and provides solutions.’

Key clients

World Programming Limited

Datecs OOD

F W Thorpe Plc

Secret Smokehouse Ltd

Random Theory LLC (t/a Playbook Products)

Veiovia Ltd

Pembrook Products Ltd

Athena Cosmetics, Inc.

Avantra (Syslink Xandria Ltd)

McDonald’s Restaurants Limited

Crafter`s Companion Limited

Prinova Europe Ltd

GRID eSports GmbH

Reckitt Benckiser (ENA) B.V.

Life Health Foods Ltd

Athena Cosmetics, Inc.

Vertical Future

Julia Kogan

Victoria Miro Gallery Limited

Nicole Farhi Ltd

Time Plan Education Ltd

Cardioscan Services Pty Ltd

Erda Energy Ltd

Landfair Capital Ltd

HP1 Technologies Ltd

PreGel SpA

Raycast Technologies Ltd

Empowering Learning Ltd

Columbia Care

Good Ventures Ltd (t/a Evolve Beauty)

BVNK Service Ltd

Lario Therapeutics Ltd

Norton Rose Fulbright

Norton Rose Fulbright’s patent practice advises clients from a multitude of sectors, from energy to technology. The team is led by Mike Knapper, contributing his considerable strength in the life sciences, energy and technology sectors to the practice. Jonathan Ball rejoined the practice from Gowling WLG in June 2022, enhancing the team with his expertise in patent litigation. Other notable names include Jane Caskey and counsel Farah Mukaddam.

Practice head(s):

Mike Knapper

Other key lawyers:

Jonathan Ball; Jane Caskey; Farah Mukaddam; Alex Redbourne; Verity Quartermain


‘A quality IP practice.’

‘Jonathan Ball is dedicated to getting the right result for the client, has a good idea for the detail and is great to work with.’

Key clients


Kerry Foods

Accolade Wines

BNP Paribas



Japan Tobacco Inc.

Work highlights

  • Advising Shell on a patent infringement claim brought by Ensygnia IP Limited in the Patents Court, UK High Court in relation to the alleged infringement of Ensygnia’s patent by a number of Shell entities in relation to Pay at Pump technology.
  • Advising Kerry Group Plc on the sale of its sweets ingredients business to Advent International, the private equity group.
  • Advising JTI and its subsidiary Nordic Snus AB on patent and know-how licence relating to delivery systems for tobacco alternative technology worldwide.

Stevens & Bolton LLP

Stevens & Bolton LLP is notably experienced in patent licensing, working across numerous sectors including life sciences, technology, and consumer and luxury goods. Tom Lingard leads the ‘professional’ and ‘responsive’ practice; he is well-versed in handling patent matters in the technology, media, manufacturing and sport sectors, while Charlotte Tillett strengthens the team with her expertise in the life sciences sector. Senior associate Tom Collins is also recommended.

Practice head(s):

Tom Lingard

Other key lawyers:

Charlotte Tillett; Tom Collins


‘Always happy to work with them. Professional, responsive and they understand us.’

‘S&B worked effectively and closely with our patent attorneys offering good client service, very responsive and good area knowledge. Billing was fair.’

‘Tom Lingard stood out with understanding the needs of our start-up business to be agile and efficient with funds. He worked directly with us on most client facing matters and involved juniors where cost efficient. Would highly recommend.’

Key clients

Nextlife Wearables Ltd

Dental Sky Wholesaler Ltd

NexGen Tree Shelters Ltd

Work highlights

  • Supporting a global biotechnology company in relation to IP licensing, including negotiating complex cross-border patent and know-how licence agreements with major pharmaceutical companies.
  • Advising a global biotechnology company on a payment and trade secrets dispute concerning a patent and know-how licence agreement. The dispute was moving towards arbitration under the LCIA Rules, before settling on very favourable terms for our client.
  • Advising and acting for an international technology company in relation to important collaboration agreements with academic institutions which are key to creating patentable technology to advance the development of quantum computing.