International IP firm Marks & Clerk needs no introduction in the field of IP filing and portfolio management. It has a large team of patent and trade mark attorneys across England and Scotland. The firm offers dispute resolution and commercial IP services through its sister law firm Marks & Clerk Law. Robin Oxley and Simon Mounteney are the top leaders in the firm. Oxley serves as the firm’s chairman while Mounteney is the managing partner for Europe. Another notable leader in the firm is physics specialist Daniel Talbot-Ponsonby, who leads the Oxford office.
The firm has a large team of patent practitioners across the UK in several technical fields. David Robinson, Will Nieuwenhuys, Thomas Prock, Jonathan Stafford, Sheila Wallace, Mark Kenrick and Philip Cupitt are among the key senior European patent attorneys in England. Kenrick is also qualified to conduct court litigation. Tim Hargreaves, Andy Docherty, and Richard Gibbs lead its Scottish operations. Other notable patent attorneys in Scotland are Graham McGlashan and David Murray.
Birmingham-based trade mark attorney Esther Gottschalk heads its trade marks filing and prosecution practice. Some of its key trade mark attorneys in England are Gareth Jenkins, Alison Melling, Michael Shaw and John Ferdinand. Janice Morrison is a key trade mark attorney in Scotland.
Kirsten Gilbert and Hannah Finster are the key soft IP lawyers in its law firm. The leading patent litigators are Mike Gilbert, Dafydd Bevan, and Charlie Balme. Balme and Bevan also deal with soft IP disputes. Simon Portman is a transactional specialist in the firm.
2023
"We appreciate the personal attention of the team and their efforts to understand our commercial goals and tailor their advice accordingly. "
"We feel that Marks & Clerk are part of our team: we have a long-term, trusted relationship with them and they understand our priorities."
"Marks & Clerk have an impressive range and depth of expertise, as well as relevant sector experience. Marks & Clerk have also provided fantastic support on IP education and training initiatives across our organisation."
"Marks & Clerk have notable knowledge and expertise in the field of patent prosecution and management of a patent portfolio. The team is resourceful, objective-driven and client-oriented."
"They are friendly, understanding, practical, pragmatic and highly professional. They maintain clear management of expectations, timelines and costs. "
"They are particularly helpful and responsive to any questions. I'm very happy with the advice they give and the quality of all their work."
"They are smart, timely and easy to work with."
"We appreciate the extremely solid dedication and high levels of client services, diving in and learning the underlying business and strategic issues at play."
"We appreciate the team's professionalism, attention to detail and timely manner of their services. They have a very good understanding of our business and the complexity of our industry and associated IP. Marks & Clerk has consistently provided excellent advice and support to our business and has helped develop and secure a substantial IP portfolio."
"We appreciate their high availability, honest advice, and great legal knowledge of the subject."
"We appreciate their strong technical expertise and good service. "
"They are all very approachable and friendly."
"They are very responsive, user-friendly and absolute experts in their field."
"They provide clear and practical advice, which makes it easier for the clients to make their decisions."
"We like their willingness to think and help the client, not just receive instructions, and their quick response."
"We value their in-depth knowledge of patent laws and technical expertise in the sciences."
"We value their understanding of technology. They always give good advice, never miss any deadline, and offer quick responsiveness."
"The professional relationship between us and the Marks & Clerk team has continued to evolve since the early days and remains strong. There is a high level of trust, and understanding of our business and technology, that is unbeatable. Our patent agent makes us feel like his only client, and that is an impressive achievement in his demanding line of work."
2022 client testimonials
"Marks & Clerk provides good commercial advice."
"They are proactive and reply swiftly."
"We have an excellent relationship with the firm. They understand the priorities of academic inventors and the university and provide pragmatic, cost-effective solutions whilst maintaining a high-quality service."
"Really helpful, supportive and flexible service which was invaluable in our complicated case."
"Clear and efficient communication."
"Punctual, quick and professional."
"Responsive, helpful and informative."
"The firm has a detailed understanding of our company's commercial focus."
"Their efforts to understand our commercial objectives and ensure that the IP advice is aligned with those objectives. They have also ensured that we have a clear succession plan with other members of the team being brought through on our patent cases."
"They excel in their knowledge and understanding of our product range."
"Marks & Clerk are always easily contactable and responsive to emails. They are also always happy to provide advice on both personal growth and business growth."
"They had initially done some work for my business as part of the start-up award we received. We were beyond pleased with their excitement about the technology, enthusiasm, level of service and the strategy advice they gave. We were very pleased to keep them onboard and since the start their standard of work has been at the highest level."
"At a start-up level, they offered additional support to our business to ensure they built a strong and positive relationship from the start. The quality of work has exceeded our company's expectations, and the effort they put into the work and the relationship is outstanding."
"We trust the advice given and we are very happy with the levels of service provided."
"Approachable, efficient, and trustworthy."
"We have a good working relationship with their attorneys and have a high level of trust in their work."
"We like the practical approach and the availability of advisers with appropriate background."
"We have been using them for patent filing work in the UK for a few years and are satisfied with their service, in particular the technical know-how in the power semiconductors field."
"Good relationship, prompt communication and responses, well-drafted filings, and useful advice."
"Their culture is compatible and they have a clear understanding of our needs."
"We use them because of the quality of work, technology knowledge and price."
"They have excellent people who understand our needs."
"Quality, professional and available."
2021 client testimonials
A client said Marks & Clerk Law has “expertise in intellectual property and regulatory matters in the pharmaceutical field” and commended the firm for providing “appropriate advice in a timely manner”.
A patent protection client said: “We feel we can have open, strategic conversations with the team and they take time to understand our business and market sector. The service is world-class, and they make a complicated subject simple and easy to understand.”
One client explained why they use the firm: “I have been with the firm for over 10 years and their service has always been excellent. Critically, they integrate expert IP advice with very strong commercial and litigation advice. The firm has extremely high-calibre individuals in all the departments I deal with.”
Another client uses the firm because of its “swift action and dependable advice”.
A satisfied brand owner said: “We have successfully used Marks & Clerk for over 10 years and have built up an extensive trade marks portfolio. The firm has consistently delivered on providing good advice and a very high success rate for acquiring new marks and protection of our existing marks. The team responds quickly to requests or problems that arise. Importantly, as a customer we feel valued.”
“They were responsive, practical, and listened to our input on strategy. Our matter was resolved to our satisfaction,” says a client.
A client referee appreciated the way the firm dealt with office proceedings: “Marks & Clerk takes the time to learn our business and dives deeply into the facts of each case. In opposition proceedings, they come prepared and are ready to handle anything that comes up during the proceedings.”
2019 client testimonials
A client said the firm’s practitioners are “good listeners” and give “considered advice” in a “clear and calm” manner.
A patent client appreciated the personal service and technical expertise: “[They are] available for discussion, either in person or through video calls. Keen to find solutions in a timely and cost-effective manner and explain difficult matters to non-patent people. From a technical point of view, there is nothing negative at all to say. [They are] extremely competent.”
Another client uses the firm because of the team’s “ability to understand the business needs and advise on strategic decisions for the IP as well as successful track record in patent filings”.
A university spin-out company said the firm’s practitioners were “approachable and able to make IP understandable to non-experts” and “always provided an excellent timely service”.
One client said the firm provided “thorough, positive and constructive” advice, adding: “We have used this firm and then stress-tested others. This firm has always been ahead.”
Case studies show the firm dealt with patent prosecution and office proceedings in fields such as computer technology, mechanical engineering, biotechnology, and chemistry. ClinSpec DX, Gilead Sciences, Daiichi Sankyo Company, Rhizomenet and Illumina are among the clients for patent protection work.
This year's patent attorneys to watch in England are Andrew Hartley, Emma Foster, James Shearman, and Giles Pinnington. The ones to watch in Scotland are Mairi Rudkin and Alistair Robertson. Patent attorneys Steven Gurney, David Ward and Tom Somervell have left the firm. Gurney left in 2021 to set up his own firm.
The litigation case studies show the firm represented companies such as Genentech, Pfizer and dSPACE. The patent litigators to watch are Dan McGrath, John de Rohan-Truba, Will Jensen and Ian Turner. Engineering patent specialists Stephen Blake and Douglas Rankin left in 2021 to set up their own IP firm. Former international chair Maureen Kinsler also left the firm in 2021. Patent litigator Trevor Crosse left in 2022 to join a law firm. Glasgow-based patent star David Moreland, Paul Chapman and Angus Fairbairn retired from the partnership in 2023. Mash-Hud Iqbal is a practitioner to watch.
IP litigator Graham Burnett-Hall left the firm in 2024. IP transactions specialist Michael Moore and patent litigator William Cook are no longer with the firm.