Gregory Lees



Gregory joined the firm in 2010 after graduating from the University of Oxford with a First-class Honours degree in Engineering Science. He has studied a broad range of disciplines including mechanical, electrical, structural and fluid engineering.

During his final year at Oxford Gregory worked with the Oxford Institute of Biomedical Engineering as part of a team developing a collapsible cerebral stent for the treatment of brain aneurysms. He was made a Partner in 2023. Gregory is an Authorised Representative before the Unified Patent Court (UPC).


Type of clients and client work

Gregory has experience in drafting patents in a variety of fields, prosecuting such applications to grant before the UK and European Patent Offices, and 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.



Gregory handles patent work principally in the fields of engineering and software, including data processing, biometric analysis, medical devices, aerospace and automotive engineering, telecommunications, and refrigeration.


Qualifications and Memberships

  • Authorised Representative before the Unified Patent Court (UPC) 2023
  • UK Chartered Patent Attorney, 2014
  • European Patent Attorney, 2014
  • Certificate in IP Law, Brunel University, 2011
  • Fellow of the Chartered Institute of Patent Attorneys
  • European Patent Institute


Higher Education

MEng (First Class), University of Oxford, Engineering Science, 2010



Gregory has been nominated by his peers as one of the world’s leading patent practitioners in Who’s Who Legal: Patents 2016.

Contact details

St Bride’s House
10 Salisbury Square
United Kingdom

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


mechanical engineering, electronics, software, consulting, designs