David Fleming



David joined Dehns in 2017 after graduating from the University of Cambridge with a BA and MSci degree in Natural Sciences (Chemistry). Having spent the early years of his life in Switzerland, he has a good knowledge of German.

David qualified as a European Patent Attorney in 2021 and as a UK Patent Attorney in 2022. He became an Associate in 2023.


Type of clients and client work

David works with clients of all sizes, from university spin-outs and SMEs all the way through to multinational corporations.

He has experience in drafting new patent applications, prosecuting applications before the UK and European Patent Offices, managing international patent portfolios, and working on oppositions and appeals at the EPO.



David handles work in a wide variety of technical fields including polymer chemistry, organometallic catalysis, nutraceutical and pharmaceutical chemistry, drug delivery formulations, and marine paints.


Qualifications and Memberships

  • Authorised Representative before the Unified Patent Court (UPC) (2023)
  • UK Patent Attorney, 2022
  • European Patent Attorney, 2021
  • Postgraduate Certificate in Intellectual Property Law, Queen Mary University, 2018
  • Fellow of the Chartered Institute of Patent Attorneys (CIPA)
  • Member of the European Patent Institute (epi)


Higher Education

MSci Natural Sciences, University of Cambridge, 2017

BA Natural Sciences, University of Cambridge, 2017



David will be attending the FICPI ABC Meeting from the 15th – 18th June 2024. Please contact David if you would like to arrange a meeting.

Contact details

St Bride’s House
10 Salisbury Square
United Kingdom

+44 (0)20 7632 7200 +44 (0)20 7353 8895