Mathys & Squire LLP > London, England > Firm Profile

Mathys & Squire LLP

TMT (technology, media and telecoms) > PATMA: Patent attorneys Tier 2

Mathys & Squire LLP has demonstrable experience and success in opposition proceedings, and divides its practice into two groups, with one team focusing on matters arising out of the life sciences and chemistry sector, and the other advising clients on IT and engineering mandates. The team, which has seen an increase in the number of filed patents in the last year, is well-placed to not only leverage the expertise of the firm’s litigation practice, but also handle multi-jurisdictional patent prosecution work, with offices in Germany, Luxembourg and France, in addition to Shenzhen, China, and Tokyo. In London, Jane Clark leads the practice alongside Paul Cozens, Chris Hamer, Martin MacLean and Cambridge-based Alan MacDougall, who has considerable experience in the electronics and communications sectors. Annabel Hector was promoted to partner in April 2021, while Peter Gray left in July 2021 to join Kilburn & Strode LLP and life sciences expert Iain Armstrong arrived in May 2022 from HGF Limited.

Practice head(s):

Jane Clark; Paul Cozens; Chris Hamer; Alan MacDougall; Martin MacLean

Other key lawyers:

Craig Titmus; James Wilding; Sean Leach; Philippa Griffin; James Pitchford; Juliet Redhouse; Dani Kramer; Laura Clews


‘The most fortunate development of our business was engaging Mathys & Squire. Highly knowledgeable, professional and excellent value for money.’ 

‘Paul Cozens is my primary contact and he brings a wealth of experience that enables him to get to the key issues very quickly. He is supported by a strong team who always deliver high quality outcomes.’ 

‘My experience with the Mathys & Squire team has been outstanding. They are organised, responsive, and dynamic. They ensure they have gathered all of the relevant data by virtue of asking the appropriate questions and extracting information that I may have overlooked or not considered.’ 

‘Our main contact, Martin MacLean, has truly extensive experience in prosecuting patent applications through the whole process from filing to award. His support team are also highly competent. It is a pleasure to work with Martin.’ 

‘Laura Clews and Jane Clark have always been a delight to work with. They are both extremely competent and pleasant.’

‘Craig Titmus brings dedication, knowledge and humour to our meetings. He clearly has a passion for science and our specific products, delivering assignments with a competitive edge. Craig addresses issues head-on, and delivers quality, in-depth reports even when deadlines are squeezed from 3 months to 3 weeks without notice and without flinching.’  

‘I have been working with Alan MacDougall for over ten years. Alan is very diligent in his work and has extensive knowledge and experience in the intellectual property field. He always responds in a timely and accurate manner and has been a reliable partner in my business.’

‘Chris Hamer’s unbelievable ability to analyse complicated concepts incorporating chemistry, physics and mechanical disciplines, and somehow render the interaction clear and easy to read, is outstanding. I can say with total transparency that the strength of our patent portfolio is in good part thanks to Chris.’ 

Key clients

The Broad Institute


Fuji Capsule Co., Ltd.

Biogen MA Inc

Genzyme Corporation (Sanofi)

Kenwood Ltd and De’Longhi Braun Household GmbH

Evolution Biotechnologies Ltd

Work highlights

  • Defended a patent in The Broad Institute’s portfolio at the EPO, covering an approach that could revolutionise cancer treatment.
  • Successfully argued for a Kenwood patent to be maintained during opposition proceedings at the EPO.
  • Defended AAK in an opposition before the EPO in relation to the improvement of heat resistance and long-term storage of chocolate.

TMT (technology, media and telecoms) > PATMA: Trade mark attorneys Tier 2

With offices across the UK, and in Munich, Luxembourg and Paris, Mathys & Squire LLP offers ‘highly targeted advice’ on the full range of trade mark protection and prosecution matters, from filings and renewals of UK and EU trade mark applications to opposition proceedings and invalidation actions. Noted for its cross-border capability, the team of attorneys is well-placed to leverage the expertise of the firm’s litigation practice to handle trade mark disputes in the High Court and the IPEC. ‘Deeply experienced and highly knowledgeable’ practice co-leader Margaret Arnott operates from the firm’s office in London and heads up the firm’s litigation practice. Based in Manchester, practice co-leader Gary Johnston handles anti-counterfeiting matters and has experience in contentious proceedings and appeals. The team’s client roster includes international corporations, as well as start-ups and SMEs, across the automotive, food and beverage, energy, cosmetics and technology sectors.

Practice head(s):

Margaret Arnott; Gary Johnston

Other key lawyers:

Harry Rowe; Rebecca Tew


‘The Mathys Squire team has been able to effectively guide us on all of our queries.’

‘Margaret Arnott is clearly a deeply experienced and highly knowledgeable trade mark attorney.’

‘Mathys Squire stands out above all other firms.’

‘Highly targeted advice and in-depth knowledge of how trade marks work. Holistic advice on manoeuvring through other companies’ rebuttals.’

Key clients

British Gas/Centrica

Kenwood Limited (De’Longhi)


Public Health England (now UK Health Security Agency)


Rigby & Peller


The Tate Gallery

Edward de Bono Limited


House of Lords

House of Commons

The Institute of Chartered Accountants in England and Wales

The British Tourist Authority

The firm: Full-service intellectual property (IP) firm Mathys & Squire LLP works with its clients to maximise the value of their IP assets. The firm’s breadth of technical expertise and depth of professional experience are coupled with a determination to add commercial value. Mathys & Squire has a broad spread of clients, ranging from innovative startups, for which the firm’s experts assist at every stage of the business cycle, through to major UK and multinational corporations (many of whom are household names) on complex, high-value matters.

The firm’s commitment to professional excellence and its technical expertise are valued by all clients. Through its creative approach, Mathys & Squire has a successful record of securing the grant of key patents and settling disputes on the best possible terms. Client companies without their own in-house patent and trade mark departments value the firm’s understanding of their business issues and the importance and value of their IP. Mathys & Squire enjoys excellent relationships with like-minded firms of associates from all over the world.

Assignments for clients vary widely and include: strategic management of global patent and trade mark portfolios for major corporations; advising startups in relation to the creation and ownership of IP rights and their commercial exploitation; patent and trade mark prosecution, including oppositions and appeals, for major corporations; providing specialist European (EPO and OHIM) expertise to fellow professionals; working alongside solicitors and counsel in the UK, bringing to bear the firm’s complementary skills and experience; advising at CEO level on the role of IP rights in revenue generation and asset creation; finding paths through third-party patent, trade mark or other IP rights, including challenges to validity where appropriate; resolving disputes through various forms of ADR to litigation, whether as the lead firm or as part of a team; and bringing specialist IP skills to corporate finance, including due diligence.

Practice areas: Mathys & Squire offers a full range of services across patents, trade marks, designs and related IP rights, both contentious and non-contentious. Its specialist teams cover a wide spectrum of sectors including IT, electronics, telecoms, life sciences, pharmaceuticals and chemistry.

The firm’s experts have specific industry experience or advanced degrees in most relevant disciplines. The trade mark practice blends highly experienced prosecution services with portfolio management and enforcement skills.

The firm’s core areas of expertise include:

  • Identifying IP capable of protection by understanding the client’s technology and business objectives.
  • Obtaining valuable patent, trade mark and design registrations through skilful drafting and powerful advocacy before the world’s patent and trade mark offices.
  • Representing clients in disputes and contentious proceedings (especially those of the European Patent Office), drawing wherever necessary upon the expertise of fellow professionals.
  • Facilitating the commercial exploitation of a client’s IP by way of sale, licence or joint venture.
  • Advising clients in relation to their IP strategy and management of their IP portfolios.

Mathys & Squire’s 28 partners, five of counsels and 31 associates are assisted by a further 24 technical assistants at various stages of qualification and a team of 17 paralegals. This spread of expertise, operating across 10 UK and European offices, with teams based in China, Japan and Dublin, enables the firm to deploy a team with the right skills and seniority at the right cost to deliver bespoke IP solutions and business advice to meet clients’ needs.

Other UK offices: Birmingham, Brighton, Cambridge, Manchester, Oxford and York

European offices: Luxembourg, Munich and Paris

IT & engineering Jane
IT & engineering Paul
Life sciences & chemistry Chris
IT & engineering Alan
Life sciences & chemistry Martin
Trade marks & designs Margaret
Trade marks & designs Gary
Margaret Arnott photo Margaret ArnottMargaret is a highly regarded Trade Mark Attorney and Solicitor. She has…
Jane Clark photo Jane ClarkJane Clark has over 30 years’ experience of drafting, prosecution, infringement, validity,…
Paul Cozens photo Paul CozensPaul Cozens has over 30 years of experience in the IP profession,…
Chris Hamer photo Chris HamerChris Hamer is one of the world’s leading chemistry attorneys and widely…
David Hobson photo David HobsonDavid is a Partner in our life sciences and chemistry team. He…
Martin MacLean photo Martin MacLeanMartin MacLean’s principal practice areas include; drafting and global prosecution, defence and…
Juliet Redhouse photo Juliet RedhouseJuliet is a partner in Mathys & Squire’s life sciences team, working…
Andrew White photo Andrew WhiteAndrew manages international portfolios in the medtech, software, telecoms and automotive fields,…
Number of partners : 28
Number of other fee-earners : 60
Other staff : 104

At Mathys & Squire we take diversity and corporate social responsibility very seriously.
We are proud to be an employer of choice, and our workplace is diverse, inclusive and welcoming. Our staff come from a wide range of nationalities, educational backgrounds and cultural heritages. A third of our partners are female while part time and flexible working is common across the firm. We offer enhanced maternity, paternity and shared parental leave pay.

Our recruitment process reaches out to a wide range of universities and our interview style is designed to allow individuals to relax and perform to their best ability. We maintain a best practice, supportive environment where all our staff can develop and reach their full potential. We are active members of IP Inclusive, a profession-wide initiative committed to making the IP profession more inclusive. Our Social Committee works hard to ensure our events calendar appeals to all ages and accommodates a range of different interests and tastes. We have run Unconscious Bias training for our partners and Diversity training for both staff and partners.  

We are also heavily committed to giving back to our local communities. In London, we work closely with St James’ Church of England Primary School in Bermondsey, working on initiatives such as National Science Week and the annual competition to design the Mathys & Squire Christmas card. Each Christmas, the London office also supports the Southwark Council Children at Risk team by providing presents for children within their care. Our ‘Charity of the Year’ in 2019 is Guide Dogs.

We are also committed to monitoring our environmental policies and carbon footprint. In this regard, we are proud to be ISO 14001 accredited, which focuses on environmental management and recognises that, as a firm, we are committed to improving our environmental performance through efficient use of resources, a reduction of waste and lessening our carbon footprint. In support of the environment more generally, we are partnered with Trees for Life, a UK-charity that works to protect the Caledonian Forest in Scotland.

As a firm committed to diversity and equality, Mathys & Squire actively supports the diverse make-up of its members and staff. To this end, the firm has appropriate policies and procedures in place across recruitment; training and professional development; reward and remuneration, to foster a working environment that supports this goal. Mathys & Squire’s policies, which are monitored and regularly reviewed by the management board, are free of discrimination on the grounds of race (including colour, nationality and ethnic origin), disability, gender reassignment, age, sexual orientation, sex, marriage and civil partnership, pregnancy and maternity, religion and/or belief. Mathys & Squire is proud to be an employer of choice, and promote a workplace that is diverse, inclusive and welcoming. Staff come from a wide range of nationalities, educational backgrounds and cultural heritages.

The firm’s recruitment process reaches out to a wide range of universities, while the interview style adopted across all teams throughout the hiring process is designed to allow individuals to relax and perform to their best ability. Maintaining a best practice, supportive environment where all Mathys & Squire staff can develop and reach their full potential is paramount.

An active member of IP Inclusive, an organisation committed to making the IP profession more inclusive, Mathys & Squire is part of the high-level ‘think tank’ devoted to improving diversity and inclusion (D&I) in the industry. This project brings together senior and managing partners to share ideas and best practices across numerous IP firms. The collaboration underlines the patent and trade mark professions’ commitment to create genuine, lasting changes to working practices and cultures. As part of this commitment, HR partner Alan MacDougall is proud to have signed IP Inclusive pledge.