About Me

I am a partner in our international Intellectual Property Group and co-head of our International Life Sciences & Healthcare Group. I'm based in London.

As a partner in our Intellectual Property Group, I specialise in patent litigation and advise in the area of pharmaceuticals, biosimilars, biotechnology (including in food), chemicals and medical devices. This includes advising on AI patents in the Life Sciences sector.

My interests and experience also extend to a diverse range of technical fields including the financial services sector.

In my role as co-head of our International Life Sciences & Healthcare Group, I take pride in ensuring that clients find the right adviser from our specialist group comprising over 250 life sciences and healthcare lawyers across our international offices.

In the course of over 25 years of experience of patent litigation, I have been involved in devising successful litigation strategies and co-ordinating complex multi-jurisdictional disputes for clients. I am keen to advance the use of technology to improve the delivery of these services to clients and have developed various IT solutions to improve information exchange and make significant improvements to productivity. In particular, I have led a project to develop an on-line patent litigation management tool that allows clients immediate access to the status of all of their litigation, efficient communication of instructions and budget control while at the same time reducing the overall cost of the litigation.

I have written and spoken on a number of IP topics, and I am an associate of the Chartered Institute of Patent Attorneys (CIPA) and a member of the Law Society of Ireland.
  • Actavis -v- Eli Lilly
  • Smith & Nephew -v- ConvaTec
  • Actavis -v- Boehringer Ingelheim
  • Napp Pharmaceutical Holdings Ltd -v- Dr Reddy's Laboratories (UK) Ltd
  • Generics (UK) Limited -v- Yeda Reseach and Developement Company


  • I gained a BSc in chemistry and a PhD in organic chemistry.


  • Law Society of England & Wales in 1999
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'Mark Hilton is a match for anyone as a pharma-focused patent litigator. His deep industry knowledge sets him apart from much of the rest of the field. He is calm under pressure and is able to avoid being sidetracked, which is quite a skill in complex patent litigation. There is no one better at 4D chess.'

Legal 500 UK 2020

Mark​ Hilton is hailed as a "prominent name in the market" who is lauded by interviewees for his impressive work on pharmaceutical patent litigation.

Who's Who Legal 2019

Mark Hilton receives rave reviews from clients and fellow practitioners alike. "He is a calm, clear-headed litigator with a keen grasp of the commercial implications of his work. Mark is an astute counsel with a very deep knowledge of the pharmaceutical industry – he's measured in his approach, speaks with considerable authority and always stays calm under pressure. There is no better life sciences patent litigator in the United Kingdom."

IAM Patent 1000 2019

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