John Brunner


John Brunner, Partner, Attorney at C&R

John has extensive experience working within the tech sector, with one of the largest IT and telecommunications opposition practices in Europe. He has successfully led some of the most high profile cases in this field before the EPO’s Boards of Appeal and Opposition Divisions. He routinely obtains valuable patents for a variety of software and IT businesses, and in recent times has been brought in by clients working on AI related technologies to build defensible patent portfolios in Europe. His other main area of expertise is in the healthcare sector, particularly involving drug delivery systems, device fabrication and diagnostic devices. In these fields, John advises a range of companies, from start-ups to multinationals, on more general IP issues, including infringement and enforcement of patents and design rights, and licensing issues.

Prosecution of patent applications in Europe that read onto established industry standards requires particular experience. John’s experience with LTE, 3G, Digital Video Broadcast (DVB), and DDR (SDRAM), as well as numerous others, highlights his ‘superb’ ability (IAM Patent 1000) to prosecute patent applications in Europe.

John is an Engineering graduate of the University of Oxford and a council member of the UK Group of the International Association for the Protection of Intellectual Property (AIPPI). Prior to joining Carpmaels & Ransford, he worked for a leading technology product development consultancy in Cambridge.

“The versatile John Brunner has an impressive reputation in cutting-edge fields, including fintech, drug delivery and artificial intelligence".
IAM Patent 1000, 2019


  • MEng (Hons) Engineering Science (University of Oxford)
  • Chartered Patent Attorney
  • European Patent Attorney
  • European Design Attorney