John McKeon

Senior Associate


John is a UK and European Patent Attorney.

After training in private practice, John spent several years in senior patent counsel roles at large multinational corporations, including as the sole patent attorney at a FTSE 30 company, where he developed and implemented a patent filing strategy that led to his employer being ranked as the 2nd most prolific UK-based patent filer at the European Patent Office in 2019.

John joined Dehns as a Senior Associate in 2022.



John has technical expertise across a broad range of engineering fields, with particular experience in medical devices, digital health products and electronic cigarettes.

He is experienced in patent drafting, prosecution and freedom to operate, and takes particular pride in thinking commercially to provide pragmatic solutions to patent issues.


Qualifications and Memberships

  • Authorised Representative before the Unified Patent Court (UPC) 2023
  • UK Chartered Patent Attorney, 2018 (Awarded CIPA Drafting Prize for obtaining highest mark in the Drafting Paper)
  • European Patent Attorney, 2018
  • Fellow of the Chartered Institute of Patent Attorneys (CIPA)
  • Member of the European Patent Institute


Higher Education

MA/MEng (First class), Cambridge University, Engineering (2011)

Contact details

Fabric Building
30 Queen Street
M2 5HX
United Kingdom

+44 (0)20 7632 7200 +44 (0)161 470 8030


mechanical engineering, electronics, software