Gareth Fennell


Gareth is recognised as a leading patent professional in the industry and his cross-sector know-how is valued by clients and colleagues. His workload spans a wide range of subject matter, with specialist areas including computer software, medical devices, blockchain, bio-informatics and other computational/chemical interface work.  A particular interest is the patentability of borderline cases, including software innovations.
In addition to patent drafting and prosecution work, Gareth is experienced in handling EPO oppositions and appeals. He has a particular reputation for handling computer software cases before the EPO and UK IPO. He also has litigation experience, having been an integral member of the litigation team for several High Court patent actions.
Gareth has had articles published on the patentability of borderline cases and has given various presentations and lectures on this and other subjects. He runs a training programme at Queen Mary University of London for candidates sitting the European qualifying examinations.


European Patent Attorney (2003)
Chartered UK Patent Attorney (2003)
IP Litigator - Patent
MSc Computer Science, University of London (1996)
BA Hons Natural Sciences (Chemistry), University of Oxford (1994)


Chartered Institute of Patent Attorneys (CIPA)
The Institute of Professional Representatives before the European Patent Office (EPI)

Selected Publications

G. Fennell, The EPO and computer-implemented inventions: an appeal for more?, Kilburn & Strode (2018)

G. Fennell, Blockchain Buzz, Kilburn & Strode, (2017)

‘Five Approaches to Software Inventions’, Managing Intellectual Property (6 December 2013)

‘OK Computer? The Patentability of Software in Europe/UK’, Managing Intellectual Property (2010)

Software Patents in Europe, Association of Intellectual Property Firms (2009) 

‘A European perspective: a comparison of the different approaches of the UKIPO and EPO when assessing the patentability of electronic inventions’, Patent World (2006)

  • Financial Services
  • Medical Devices
  • Software
  • Telecommunications
  • Patents

The technology team regularly writes about trends, developments and legal updates in the IP industry in our News & insights hub.

Read here

Cookies improve the way our website works. By using this website you are agreeing to our use of cookies. For more information see our cookie policy I accept