J A Kemp > London, England > Firm Profile

J A Kemp
80 Turnmill Street

TMT (technology, media and telecoms) > PATMA: Patent attorneys Tier 1

With offices in London, Oxford, Cambridge, Paris and Munich, J A Kemp has a diverse client roster, including start-ups, spinouts, multinational companies and academic institutions, based in the UK and across Europe, and ‘provides an excellent service’ to clients situated in the US and Japan. The practice is noted for its standout expertise in the pharmaceuticals sector (Ravi Srinivasan heads up the team) and is well-versed in patent prosecution matters, often involving a cross-border element, as well as EPO opposition and appeal proceedings. Praised for his ‘wise counsel, professionalism and timeliness’, senior partner Nigel Price leads the engineering and IT group, while Amanda Simons spearheads the chemistry and pharmaceuticals practice, and Patrick Campbell is the biotechnology and life sciences lead. Mark Roberts heads up the medical devices team, John Leeming leads the software group, Samuel Smith heads up the electronics team and the plant science and agriculture practice is led by Andrew Bentham.

Practice head(s):

Nigel Price; Amanda Simons; Patrick Campbell; James Fish; Mark Roberts; Ravi Srinivasan; John Leeming; Sam Smith; Andrew Bentham

Other key lawyers:

Graham Lewis; Ian MacLeod; Toby Hopkin; Hermione Thompson; Tom Leanse


‘Ravi Srinivasan, Graham Lewis and Hermione Thompson are great professionals to work with, always analysing the issues from all angles and providing solutions and different scenarios to any difficult situation that might arise. In addition, they are nice people to deal with, always willing to share their knowledge.’

‘J A Kemp has a high level of expertise and provides an excellent service in a very responsive and professional manner.’

‘I highly value the insights, wise counsel, professionalism, and timeliness of Nigel Price.’

Key clients



Bristol-Meyers Squibb

Cambridge University

Eli Lilly



Lockheed Martin

Oxford University

Regeneron Pharmaceuticals




Stanford University

Toyota Motor Corporation

TMT (technology, media and telecoms) > PATMA: Trade mark attorneys Tier 1

The ‘responsive and knowledgeable’ team at J A Kemp is frequently instructed by US and Japanese clients, primarily attorney firms, on trade mark protection mandates and maintains a strong presence in the UK, in addition to acting for a range of clients across Europe, including businesses in France, Spain and Scandinavia. Noted for its expertise in the pharmaceutical sector, the team has seen an increase in the filing of UK trade mark and design applications equivalent to an EUTM or RCD. The expanding team in Paris, combined with the expertise of the firm’s Munich office, further consolidates the practice’s cross-border capabilities and efficiency to service its diverse client roster, ranging from start-ups and spinouts to large corporations and notable academic institutions, on managing and developing global trade mark portfolios. James Fish leads the trade mark group, as well as the firm’s Paris-based trade mark practice, while Tom Albertini heads up the designs team.

Practice head(s):

James Fish; Tom Albertini

Other key lawyers:

Ben Mooneapillay; Charlotte Stirling; Aaron Newell


‘I have been impressed by the depth of knowledge across the team in terms of managing trade mark processes and advising on specifications and multi-jurisdictional issues.’

‘Charlotte Stirling has been fantastic to work with. She is very commercial, understands all the issues on a deep technical level and is always very pleasant and personable.’

‘JA Kemp is very responsive and knowledgeable.’

‘Aaron Newell is always looking out for his clients in the best possible way. He asks the right questions and thinks very much ahead. He is fast and has a great deal of knowledge.’

‘Direct and to the point. The team are knowledgeable regarding both UK and EU trade mark law.’

Key clients


Antonio Puig

Boardriders IP Holdings

Burts Snacks

Courtauld Institute of Art


GW Pharma

Halewood Artisanal Spirits

Hunter Douglas Industries

Lola’s Cupcakes (International)

Mintel Group


Nominet UK

Oxford Nanopore Technologies


Rotary International

Seiko Holdings Corporation

Sensyne Health Group

The Hershey Company

The Royal British Legion


 J A Kemp is one of the largest European patent and trade mark attorney firms, with offices in London, Paris, Oxford, Cambridge and Munich.

The firm prides itself on a pragmatic and strategic approach across all practice areas, supporting its clients’ changing needs at every stage of a project. Drafting; prosecution; opposition and litigation; non-contentious transactions and agreements; searching and assessment of validity / FTO; as well as global portfolio management:  all are handled in-house with the utmost professionalism and attention to detail. J A Kemp attorneys routinely leverage their expertise and experience to propose creative solutions to complex problems in all areas – helping their clients’ businesses to grow.

The firm works for a huge variety of direct domestic (UK and European) and international clients, ranging from startups, spinouts and growing businesses, through to some of the largest corporations and most prestigious academic institutions in the world. Attorney firms in the USA, Japan, China and the Republic of Korea also routinely instruct J A Kemp on behalf of their clients, happy to rely upon the firm’s unparalleled ability to secure intellectual property protection within Europe and elsewhere.

J A Kemp’s patents team is rightly famed for the breadth and depth of its technical expertise in every area of science and technology, boasting over 80 science and technology graduates, including over 45 PhDs. Drawing from three broad client service groups: biotechnology and life sciences, chemistry and pharmaceuticals, and engineering and IT, the firm is adept at assembling cross-disciplinary teams able to handle even complex inventions which sit across technological boundaries. Areas of particular expertise include antibodies and biologics, bioinformatics, chemistry, cleantech, diagnostics and personalised medicine, electronics and electrical technology, engineering, IT and software, manufacturing, materials and metallurgy, medical devices and technology, optics, pharmaceuticals, plant science and agriculture, polymers, regenerative medicine, semiconductors, vaccines and immunology.  J A Kemp has a well-deserved reputation for excellence in patent oppositions and appeals before the European Patent Office, as well as in its specialist team handling supplementary protection certificates (SPCs) across Europe.

The senior professionals leading J A Kemp’s dedicated trade marks team are drawn from major international law firms. The team has the expertise and resources to handle any trade mark matter, with particular expertise in the registration of unusual or otherwise difficult marks, including shape marks and marks that require evidence of acquired distinctiveness. J A Kemp’s trade mark attorneys are experienced in dispute resolution and opposition and related enforcement issues. The firm also offers a range of specialist services to protect clients’ brands online, including domain name monitoring, portfolio rationalisation, domain name disputes, anti-phishing and impersonation, website and social media takedowns, as well as handling all aspects of design protection in the UK, Europe and the rest of the world.

J A Kemp provides support for contentious intellectual property matters in the High Court of England and Wales, the Intellectual Property Enterprise Court, the UK Intellectual Property Office, the European Patent Office and European Union Intellectual Property Office (EUIPO), plus their respective appeal courts. The IP Litigation and Dispute Resolution Support Group combines in-depth knowledge of patents, trade marks and designs. The Group consists of qualified solicitors, patent and trade mark attorney litigators who provide support services in order to achieve successful outcomes for the firm’s clients.

J A Kemp is a client-focused and commercially aware firm with the breadth and depth of expertise to handle any intellectual property matter.

Chair of the management committee John Leeming
Biotechnology and life sciences Patrick Campbell
Chemistry and pharmaceuticals Amanda Simons
Engineering and IT Nigel Price
Trade marks and designs James Fish
Medical devices Mark Roberts
Electronics Samuel Smith
Pharmaceuticals Ravi Srinivasan
Tom Albertini photo Tom AlbertiniPartner, European and UK Chartered Trade Mark Attorney, Litigator
Guy Brain photo Guy BrainPartner, European and UK Patent Attorney
Patrick Campbell photo Patrick CampbellPartner, European and UK Patent Attorney
Andrew Clark photoDr Andrew ClarkPartner, European and UK Patent Attorney
Anthony Duckett photoDr Anthony DuckettPartner, European and UK Patent Attorney
James Fish photo James FishPartner, European and UK Chartered Trade Mark Attorney, Solicitor
Dominic Forsythe photoDr Dominic ForsythePartner, European and UK Patent Attorney
Kieron Grehan photo Kieron GrehanPartner, European and UK Patent Attorney
Toby Hopkin photo Toby HopkinPartner, European and UK Patent Attorney
Henry Hunt-Grubbe photoDr Henry Hunt-GrubbePartner, European and UK Patent Attorney
Martin Jackson photoDr Martin JacksonPartner, European and UK Patent Attorney, Litigator
Tom Leanse photo Tom LeansePartner, European and UK Patent Attorney
John Leeming photo John LeemingPartner, European and UK Patent Attorney, Litigator
Graham Lewis photoDr Graham LewisPartner, European and UK Patent Attorney
Ian MacLeod photoDr Ian MacLeodPartner, European and UK Patent Attorney
James Main photo James MainPartner, European and UK Patent Attorney
Chris Milton photo Chris MiltonPartner, European and UK Patent Attorney
Aaron Newell photo Aaron NewellPartner, Solicitor
Jimmy Nicholls photoDr Jimmy NichollsPartner, European and UK Patent Attorney
David Power photoDr David PowerPartner, European and UK Patent Attorney
Nigel Price photo Nigel PricePartner, European and UK Patent Attorney
Stuart Raynor photoDr Stuart RaynorPartner, European and UK Patent Attorney
Mark Roberts photo Mark RobertsPartner, European and UK Patent Attorney
Joanne Roberts photoDr Joanne RobertsPartner, European and UK Patent Attorney
Sarah Roques photo Sarah RoquesPartner, European and UK Patent Attorney
Samuel Smith photo Samuel SmithPartner, European and UK Patent Attorney
Ravi Srinivasan photo Ravi SrinivasanPartner, European and UK Patent Attorney, Litigator
Charlotte Stirling photo Charlotte StirlingPartner, UK Chartered Trade Mark Attorney
Hermione Thompson photo Hermione ThompsonPartner, European and UK Patent Attorney
Number of partners : 41
Number of other fee-earners : 56
Total staff : 218