Firm Profile > Mewburn Ellis LLP > London, England

Mewburn Ellis LLP

PATMA: Patent attorneys Tier 1

Mewburn Ellis LLP specialises in patents from the life sciences, chemistry and engineering sectors and acts for a good mix of universities and research institutes, start-ups and major international players. Machester-based Graeme Moore directs the engineering team, while Jeremy Webster is the head of the chemistry practice and Bristol's Simon Kiddle leads the life sciences group. In Bristol, the arrival of former Withers & Rogers practitioner Andrew Mears bolstered the engineering bench while Paul Dunne's promotion to partner strengthened the firm's chemistry, nanotech and life sciences offering.

Practice head(s):

Graeme Moore; Simon Kiddle; Jeremy Webster

Other key lawyers:

Richard Clegg; Chris Denison; Emma Graham; Richard Johnson; Robert Watson

Key clients


Cambridge Enterprise

Danisco US


James Cropper Plc

Johnson Matthey

Mitsubishi Electric


University of California, Berkeley

PATMA: Trade mark attorneys Tier 2

Mewburn Ellis LLP, one of the most established firms in the market, boasts a comprehensive trade mark prosecution offering and fields a busy domestic and international practice, a reflection of the group's office network across the UK and Germany. The team also offers a complementary litigation department and is increasingly active in customs seizures. With senior hires Kate O’Rourke in London, who joined from Charles Russell Speechlys LLP and now directs the trade mark practice, and Dydra Donath in Munich, a hire from Winter, Brandl, Fürniss, Hübner, Röss, Kaiser, Polte – Partnerschaft mbB, the group significantly bolstered its bench. Roger Grimshaw became a consulting partner and Sofia Arenal transitioned from partner to director.

Practice head(s):

Kate O’Rourke

Other key lawyers:

Andy King; Sofia Arenal; Rebecca Anderson-Smith


Mewburn Ellis provide detailed and comprehensive advice but, above all, they take a commercial and pragmatic approach in guiding us through the various issues.

The partners and associates are easy to reach. They provide clear advice, transparent costs and fees, and quick responses to our queries.

They are very efficient and attentive to any of our cases and notify us immediately of all updates and clearly focus on any essential actions that we are required to make instructions upon.

The team clearly works tightly together and is able to know all of our actions both current and historical. They record every detail and do not need to be reminded about any details that we may already have passed on to them.’

Andy King is extremely professional, responsive and always gives us unbiased insightful advice.

Sofia Arenal is outstanding in her ability to assess the legal aspects of many trade mark actions in various territories. She is able to ask the important questions both of ourselves and of foreign attorneys. She is proactive at chasing up national offices where the processing of trade marks may not be as rapid and efficient as, for example, the European office.

Key clients

Banhams Patent Locks Limited

Bentley 1962 Ltd

Bioline Reagents Limited

Coventry Building Society


Huntsworth plc

Kabushiki Kaisha BANDAI NAMCO Entertainment

Scott Bader Company Limited

Slush Puppie

S.R.G Apparel Plc

Intellectual property Tier 3

Mewburn Ellis LLP handles IP issues Europe-wide for clients ranging from start-ups to international suppliers. Its team advises on contentious and non-contentious issues associated with trade marks and patents. The firm's Bristol office often works closely with the London and Munich offices on matters with a cross-border dimension. Sean Jauss is a name to note.

Practice head(s):

Sean Jauss

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
Number of partners : 44
Number of other fee-earners : 80
Total staff : 260
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)