Firm Profile > Mewburn Ellis LLP > Bristol, England

Mewburn Ellis LLP

Intellectual property Tier 3

At Mewburn Ellis LLPSean Jauss leads the intellectual property team, which has a particular strength advising on patent and trade mark issues, from a contentious and non-contentious perspective, including in relation to IP transfers and commercialisation. Senior associate Caroline Hart is also recommended for enforcement and defence proceedings.

Practice head(s):

Other key lawyers:


I have had an excellent experience with this practice. Questions are answered quickly and completely. Advice has been thoughtful and precise and reflective of our company’s financial and commercial position. The Bristol team have coordinated well and seamlessly with our main contact in London.’

Outstanding knowledge and quality of advice on patent claims and other matters.’

They tune in precisely to our business needs and support us in a holistic way.’

Sean Jauss has been excellent in providing considered, reasoned advice.

Key clients

Haydale Graphene Industries plc

Medical Air Technology

UCL Business


Banhams Patent Locks



Second Sight

Sarepta Therapeutics

Rockley Photonics

PATMA: Patent attorneys Tier 1

Mewburn Ellis LLP bolstered its Munich office, especially on the life sciences and chemistry side; developed its engineering and ICT team into the largest joint group in the firm; and expanded its dispute resolution offering with the addition of new litigators. The team covers a wide range of sectors, with the life sciences sector as a key source of instructions, and impresses with its longstanding experience in the management of large international patent portfolios and its successful EPO opposition and appeals track record.  Engineering specialist and IP director Paul Misselbrook joined the Manchester office from Venner Shipley LLP in October 2019. Chemistry expert Sarah Kostiuk-Smith, also in Manchester; London-based Eliot Ward, who specialises in life sciences patents; and biotech specialist Adam Gregory in Bristol made partner between 2019 and 2020. Manchester-based Graeme Moore directs the engineering and ICT team; Jeremy Webster, also in Manchester, heads the chemistry practice; and Simon Kiddle in Bristol leads the life sciences group.


‘High quality and professionalism.’

‘Easy and straightforward communication.’

‘Graeme Moore has provided us with effective advice related to patents and trade marks in the EU.’

‘It has strong network in Europe as well as in the UK.’

‘Mewburn Ellis is a great example of a collaborative partner. Their thought process and dialogue makes them stand out as a firm committed to providing a quality IP service to their clients. They continue to provide us with timely advice to help make strategic decisions to strengthen the IP profile of our company.’

‘They are very experienced and have a large network.’

‘They are dedicated to supporting us and always respond to our needs in a well-judged and timely way.’

‘Emma Graham is always in tune with our needs and provides well-considered and well-explained advice. Her work product is always of a high quality.’

‘Graeme Moore manages to understand our concepts well and help us appropriately articulate them in our applications.’

Key clients

ADC Therapeutics

Agency For Science, Technology and Research

Alliance Pharmaceuticals Ltd

Bozicevic Field & Francis LLP

Cambridge Enterprise Ltd

Clovis Oncology

Creo Medical Limited

CryoGaTT Systems Ltd


Danisco US Inc.

Dechra Pharmaceuticals Plc

Domino Printing Sciences PLC

Ei-Mei Patent Office


Esco Ventures

F Hoffmann-La Roche AG

F-star Biotechnology Ltd

Genentech Inc

Hiraki and Associates

Hitachi, Ltd

Hummingbird Bioscience

Karsten Manufacturing Group

Kratos Analytical Ltd

Kyoto Int. Patent Law Office

McNeill Baur PLC

Medical Air Technology

MedImmune Limited

Midatech Pharma plc

Mitsubishi Electric Corporation

Kisa Patent & Trade Mark Firm

Mitsui Chemicals

Modern Biosciences Ltd

Morrison & Foerster

Nerudia Ltd

NGK Insulators Ltd

Nova Chemicals

Pacific Biosciences of California Inc.

Pentland Brands Limited


Prezio IP Firm

Regeneron Pharmaceuticals

Rockley Photonics Ltd

Scihead IP Law firm

Second Sight Medical Products

Shimadzu Corporation

Shin-Etsu Chemical Co Ltd.

Somalogic Inc

Tessa Therapeutics Ltd

The General Hospital Corporation

The University of Glasgow

Toray Industries, Inc.


University of California

University of Manchester

Western Digital Technologies

Wilson Sonsini Goodrich & Rosati

WisTa Laboratories

Wolf Greenfield & Sacks

Zealand Pharma A/S

PATMA: Trade mark attorneys Tier 2

Mewburn Ellis LLP continued its growth trajectory with the addition of a significant number of junior practitioners to the trade mark practice. Under the leadership of practice head Kate O’Rourke, the team advises domestic and international clients, including many large foreign players, on the full range of trade mark matters, assisting with strategic portfolio development matters, registration proceedings and enforcement, including custom seizures. Additionally, the firm offers an experienced bench of IP litigators. Jacqueline Pang made partner in April 2019 and the Bristol-based Edmund Harrison was promoted to trade mark director in April 2020.

Practice head(s):


‘This practice is very knowledgeable of trade mark laws and gives detailed advice for handling matters.’

‘Andy King is excellent in providing recommendations with clear legal reasoning, plus the benefits and risks for different courses of action.’

‘We have received a professional service related to patents and trademarks from Mewburn Ellis for over 15 years. They have provided us with accurate advice and effective information. Our company and Mewburn Ellis have established a good relationship over a long time.’

Key clients

Alliance Pharma plc

Astex Therapeutics Ltd

Avec Sport

Axon Enterprise, Inc. (formerly Taser International, Inc.)

Banhams Patent Locks Limited

Bentley 1962 Ltd

Bioline Reagents Limited

Capital Group Companies

Citymapper Limited

Coventry Building Society

Dechra Pharmaceuticals Plc

Defected Records Limited

Dogs Trust Trustee Limited

Dotcom Retail Limited


Halo Lifestyle LLC


Huntsworth plc

In-N-Out Burgers


Kabushiki Kaisha BANDAI NAMCO Entertainment

Karsten Manufacturing Corporation

Mi-Pac Trading Limited

Novadaq Technologies Inc.

Purezza Limited

S.R.G Apparel Plc

Scott Bader Company Limited

Slush Puppie

Smart Technologies ULC


The Museum of Modern Art

Valent BioSciences Corporation

Warminster School

Mewburn Ellis is the forward-looking IP firm. With more than 150 years’ experience in the IP profession, our focus is on providing clear, honest, strategic advice to maximise the potential of IP as an asset. We truly understand the commercial drivers that make IP an important part of a business strategy.

We work at all stages of the IP life cycle and advise on patents, trade marks and registered designs, as well as any IP related disputes and IP legal and commercial requirements. Our IP experts cover all sectors and technical fields and work closely with each other, meaning we can build individually tailored multidisciplinary teams designed to meet each client’s specific needs.

Our international practice includes large and small companies from across all industries and is as diverse as the technical areas we cover. Clients range from iconic global brands to dynamic start-ups as well as universities, research institutions and investors. Mewburn Ellis is the firm of choice for many international IP and law firms needing European counsel.

We have a wealth of experience advising on technology transfer and the commercialisation of IP.  Our expanding litigation practice offers a range of different options and strategies to maximise outcomes from pre-action correspondence, alternative dispute resolution (ADR) and litigation in the UK or other national courts, to declarations of invalidity or non-infringement, cancellation, revocation, entitlement actions, oppositions and appeals at the UK or EU IP Offices or the European Patent Office.  The firm has an enviable track record handling offensive and defensive patent and trade mark oppositions and is renowned in the profession for its success in high value, complex and multi-party oppositions at the EPO.

As one of Europe’s top IP firms Mewburn Ellis has a reputation for excellence, it is at the heart of the firm and our people along with a commitment to deliver the highest standard of service to our clients.

Department Name Email Telephone
Chemistry Jeremy Webster 01612477722
Life Sciences Simon Kiddle 01179451234
Engineering & ICT Graeme Moore 01612477722
IP Dispute Resolution, Legal, Transactions Sean Jauss 01179451234
Trade Marks Kate O'Rourke kate.o' 02077765300
Photo Name Position Profile
 Rebecca Anderson-Smith photo Rebecca Anderson-Smith Partner, Chartered Trade Mark Attorney
 Paul Dunne photo Paul Dunne Partner, Patent Attorney
 Adam Gregory photo Adam Gregory Partner, Patent Attorney
 Caroline Hart photo Caroline Hart Senior Associate, Solicitor, Litigator
 Sean Jauss photo Sean Jauss Partner, Solicitor, Litigator
 Richard Johnson photo Richard Johnson Chairperson, Partner, Patent Attorney
 Simon Kiddle photo Simon Kiddle Partner, Patent Attorney
 Andrew Mears photo Andrew Mears Partner, Patent Attorney
Number of partners : 46
Number of other fee-earners : 122
Total staff : 320
Chartered Institute of Patent Attorneys (CIPA)
International Federation of Intellectual Property Attorneys (FICPI)
International Trade Mark Association (INTA)
American Intellectual Property Law Association (AIPLA)
Japan Intellectual Property Association (JIPA)
Chartered Institute of Trade Mark Attorneys (CITMA)