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David Webb

David Webb


David specialises in patent litigation and advising on commercial IP matters. 



With a master's in Natural Sciences David advises on the technical aspects of a wide range of patent matters.

He has experience in contentious and non-contentious intellectual property matters, and has worked on high profile patent litigation before the English High Court, particularly in the pharmaceutical field and involving highly technical expert evidence.

David also has experience in high tech patent disputes in a range of fields. He takes a particular interest in disputes around fair, reasonable and non-discriminatory (FRAND) licensing and has written a number of articles in this area.

David's experience includes advising:

  • Ariosa on a patent dispute concerning its Harmony® non-invasive prenatal genetic test, including validity and infringement proceedings and a subsequent declaration of non-infringement
  • Sanofi in UK High Court litigation relating to its leading treatment for multiple sclerosis, Aubagio®
  • a global financial services firm on potential employee inventor compensation claims under the Patents Act 1977
  • a global pharmaceutical company on multi-jurisdictional coordination
  • a gaming company on potential copyright and trade mark infringement claims
  • a telecoms company on restructuring its IP licence portfolio

David has worked in the Herbert Smith Freehills Seoul office and continues to work with a number of Korean clients. He also has experience of in-house practice, having spent time on secondment to Transport for London.

Alongside his practice in IP, David is actively involved in a range of pro bono matters. In particular, he supervises a legal advice clinic with matters ranging from housing to employment law.



David graduated from University College London with a first class master's degree in Natural Sciences, with a focus on physics and chemistry. In 2020 he was awarded a distinction in the Postgraduate Diploma in Intellectual Property Law and Practice from Oxford University.

David is admitted as a solicitor in England & Wales and is a solicitor advocate with rights of audience in all civil proceedings in the UK. He is also admitted as a solicitor in Ireland.