The Legal 500

Twitter Logo Youtube Circle Icon LinkedIn Icon


Work 01865 305100
Fax 020 7353 8895
Brighton, London, Manchester, Munich, Oxford

Mark Bell


Work Department

Patents - Engineering





Mark is a qualified UK and European patent attorney. He joined Dehns in 2007 having graduated from Oxford University with a first class Master of Physics degree in 2003 and having completed a DPhil in high energy particle physics, also at Oxford University. He was made an Associate of the firm in 2013.  


Type of clients and client work

Mark acts for clients of a variety of sizes, from start-ups, university spin-outs and SMEs all the way through to multinational corporations, with a particular focus on small and medium sized technology companies for whom their patent portfolios are one of their major assets.

He has experience in drafting new patent applications, prosecuting these applications to grant before the UK and European Patent Offices, and also handling international patent portfolios. He also files registered designs in the UK and Europe, as well as providing strategic advice regarding the infringement and validity of patents and designs. 



Mark’s work involves handling patents in a wide variety of high-tech engineering and physics fields, including: quantum computing, graphics processing, nuclear fusion, satellite technology, telecommunications, solid state lighting, pressure regulation, construction, water oxygenation, nuclear decommissioning and medical devices.


  • UK Chartered Patent Attorney, 2012
  • European Patent Attorney, 2011
  • Certificate in IP Law, Brunel University, 2008
  • Fellow of the Chartered Institute of Patent Attorneys
  • Member of the European Patent Institute
  • Associate Member of the Institute of Physics
  • Basic Litigation Skills Course, 2017


DPhil, Particle Physics, University of Oxford, 2007

MPhys (First Class) Physics, University of Oxford, 2003

Mark's DPhil research involved studying the decay of sub-atomic particles (charm and beauty mesons decaying semi-leptonically to electrons) in the large scale ZEUS detector on the HERA electron-proton accelerator at the DESY laboratory in Hamburg.

London: TMT (technology, media and telecoms)

PATMA: Patent attorneys

Within: PATMA: Patent attorneys

Dehns is one of the most established firms in the market and stands out especially through its prolific patent filing practice, both at the UKIPO and at the EPO. The group is also very experienced in opposition and appeal work and counts a high number of major British, Scandinavian (especially Norwegian), and US corporations among its longstanding clients. Senior partner Alexander Piésold and biotechnology practice head Hanna Dzieglewska, both in London; head of chemical Philip Towler in Oxford; and engineering practice head John Tothill in Brighton are key practitioners. Brighton's Philip Jeffrey, Deborah Owen and Oxford-based senior associate Mark Bell are also recommended. Oxford's Tim Wilson made partner. The firm also has offices in Bristol, Manchester and Sandwich as well as an international office in Munich.

[back to top]

Back to index

Legal Developments worldwide

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to