Jane Clark

Consultant Partner

UK & European Patent Attorney

European Patent Litigator

MA (Cantab), CPA, EPA,

Jane has spent much of her career in private practice, and also has substantial experience as an in-house patent attorney. She works across several areas of technology and specialises in drafting and prosecuting patent applications and in handling proceedings before the European Patent Office (EPO). Jane is recommended in the latest edition of The Legal 500, and has been praised for being “experienced in prosecution and oppositions in the field of medical technology.” She is also ranked as a ‘Recommended Individual’ in JUVE Patent‘s Rankings UK and as a ‘Patent Star’ in the latest edition of Managing IP’s IP Stars, in which she has been ranked for a number of years. “The creative and forward-thinking” Jane has been recommended in the IAM Patent 1000 guide for the last four years, in which it is noted that she “never loses and consistently achieves value for her clients.”




“Jane Clark is very experienced in prosecution and oppositions in the field of medical technology.”

The Legal 500 (2024)


“Jane Clark is an excellent patent attorney. Her work is high quality, she delivers timely responses to queries, she is flexible and always speaks her mind. More importantly, she never loses and consistently achieves value for her clients. She provides valuable insight and can craft persuasive and succinct claim amendments to persuade examiners to allow patent applications. On top of it all, Jane has a good sense of humour, and she is easy to work with.”

IAM Patent 1000 (2023)

“Jane Clark has always been a delight to work with. She is extremely competent and pleasant.”

The Legal 500 (2023)

“The creative and forward-thinking Jane Clark has been delighting high-technology companies and universities alike for more than 30 years with the sage global strategy and lucrative IP-related agreements she masterminds, as well as her proven ability to patent the unpatentable.”

IAM Patent 1000 (2021)

“Jane Clark is a pre-eminent prosecutor who is always my first choice. [She makes herself] available for all important matters as well as many less important matters.”

The Legal 500 (2021)

Jane Clark “develops new skills for new areas that we get involved in, is creative in finding solutions to difficult obstacles and is very prompt, with strong attention to detail and execution.”

Client reference, IAM Patent 1000 (2020)

“Our experience with Mathys & Squire has been very good because the attorneys we work with understand the technical aspects of our products and can advise if a design is worth considering for patenting. This technical knowledge is very helpful when our engineers are having to explain new solutions.”

Ametek Taylor Hobson

“I would certainly recommend Jane to anyone wanting a patent attorney. Jane works with great technical knowledge and is very good at grasping the features of the product we’re looking to patent as well as finding ways to overcome obstacles to help us achieve our objectives.”

DW Windsor

“Our main contact, Jane Clark, in particular has been a real asset as she is very commercially astute and has an excellent grasp of our technology, making the process of patent drafting and prosecution very efficient.”

Taylor Hobson