Katherine Mabey



Katherine joined Dehns in 1999, having graduated from Oxford University with a First Class Honours Degree in Physics. She became a Partner in 2011 and handles patent work in various fields including physics and telecommunications. She also handles design work.


Type of clients and client work

Based in the Brighton office, Katherine drafts and prosecutes patent applications in a diverse range of fields of physics and engineering, including satellite navigation systems, packaging, oil drilling systems, personal care articles and medical devices. She also advises on infringement and validity of patents in the above fields, and handles design work. She has particular experience in oppositions and appeals before the European Patent Office. Her clients range from large US multinational companies to SMEs and overseas patent attorneys.



Katherine handles patent work in the physics, engineering and electronics fields, as well as design work. She has considerable experience of handling opposition and appeal work before the European Patent Office.


Qualifications and Memberships

  • Authorised Representative before the Unified Patent Court (UPC) (2023)
  • UK Registered Patent Attorney, 2002 (Awarded Gill Prize for first place overall and Strode Prize in Practice Paper)
  • Chartered Patent Attorney
  • European Patent Attorney, 2002
  • Certificate in IP Law, University of London, 2000


Higher Education

MA, University of Oxford, Physics (First Class), 1999



In 2003 Katherine was awarded the Gill prize by the Chartered Institute of Patent Agents for achieving first place in the Final Examinations, and the Strode prize for the top performance in the Practice paper.

Contact details

The Brinell Building
30 Station Street
United Kingdom

+44 (0)1273 244 200 +44 (0)20 7353 8895


mechanical engineering, designs, dispute resolution