Peter Pereira is a member of the Intellectual Property Litigation Team in Kirkland’s London office. He has a broad practice across all aspects of IP litigation but has particular experience in patent litigation at both trial and appellate level.

Peter’s litigation experience covers a broad range of technical fields including engineering, telecommunications and life sciences. He has significant experience acting as coordinating counsel for multijurisdictional matters, assisting clients to develop and implement their patent litigation strategies.

Peter’s recent cases include:

  • Kigen (UK) Limited v Thales [2022] EWHC 2846 (Pat) — successfully represented Thales in its application for a case management stay of a FRAND action, the first such kind ordered by the English High Court.
  • AutoStore v Ocado [2021] EWCA Civ 1003 — successfully represented AutoStore at first instance and on appeal to overturn an ex parte injunction which had been granted, restraining AutoStore from referring to certain material in ongoing International Trade Commission (ITC) proceedings. The case involved an examination of the relevant law to apply to multi-national settlement discussions and the scope of without prejudice privilege. This case is part of much broader, ongoing patent litigation between the parties, including infringement and entitlement cases brought by AutoStore in the UK High Court.
  • Sisvel v Xiaomi [2021] EWHC 1048 (Pat) — successfully defended Xiaomi, one of the largest smartphone manufacturers in the world, in an infringement action as part of high profile FRAND litigation concerning the LTE telecommunications standard.
  • BAT v Philip Morris — represent BAT as coordinating counsel with respect to numerous patent infringement actions in courts around Europe, including the UK High Court.

In 2019–2020, Peter was seconded to GSK’s Consumer Healthcare business, where his work included supporting GSK’s £10 billion joint venture with Pfizer on their respective consumer health businesses, negotiating licenses and handling all litigious trade mark matters.

The 2023 edition of the The Legal 500 UK describes Peter as “great to work with” and someone who “carries with him judgment beyond his years. He has an astute perception of the judge’s likely view which informs his decisions in litigation”. JUVE Patent describes Peter as “a rising star - he is young but very good”. Peter is also recognised as a Notable Practitioner in Managing IP’s IP Stars.

In 2020, Peter was the joint winner of the AIPPI UK study prize for his submission on the topic of descriptive use as a defense in trade mark proceedings.


Thought Leadership


Co-Author, “Copyright and Social Media”, (2016) 35(2) Communications and Media Law Bulletin 11

“Costs in pro bono litigation”, Legal Tweaks, 2014

Editor, Australian Corporations and Security Reports (since 2019), and Reporter (since 2013)


Co-Presenter (with Ashley Grant), “What constitutes a ‘willing licensee’?”, OxViews Webinar, November 2022

Speaker, “(Un?)willing licensees”, Standards & Patents: Law and Litigation Forum, London, July 2022

Speaker, “European and International Litigation Perspectives on the UPC”, OxFirst IP and Competition Law Conference, Munich, June 2022

Presenter, “Copyright in 2019,” LexisNexis Webinar Series, London, January 2020

Speaker, “Evidence Gathering Options Across the EU,” EPLaw Congress, Brussels, April 2019

Memberships & Affiliations

The Society for Junior Intellectual Property Practitioners (IPSoc)

Young European Patent Lawyers (EPLAW)

AIPPI - International Association for the Protection of Intellectual Property


Admissions & Qualifications

  • 2014, Admitted to the High Court of Australia
  • 2013, Admitted to Practice as a Solicitor of the Supreme Court of New South Wales, Australia


  • University of MelbourneMaster of Laws2019
  • The Australian National UniversityGraduate Diploma in Legal Practice2012
  • University of New South WalesBachelor of Arts; Bachelor of Laws2011