Peter Pereira is an associate in the Intellectual Property Litigation Practice Group in the London office of Kirkland & Ellis International LLP. He has a broad practice across all aspects of IP litigation but has a particular expertise in patent litigation at both trial and appellate level.

Peter’s litigation experience covers a broad range of technical fields including engineering, software, mining and life sciences, for large multinational clients such as British American Tobacco, GSK, Regeneron, Abbott, Samsung, BASF and Intel.

Peter has significant experience acting as coordinating counsel for multijurisdictional matters, assisting clients to develop and implement their patent litigation strategies, including one matter where over 30 jurisdictions were involved.

In 2019–2020, Peter was seconded to GSK’s Consumer Healthcare business, where he worked both within the IP department and the Global Support Functions (GSF) teams. His IP work included supporting GSK’s £10 billion joint venture with Pfizer on their respective consumer health businesses, negotiating licenses and handling all litigious matters. In the GSF team, he provided global category support to a number of key oral and skin care brands.

In 2017, Peter was recognized as one of the top 10 intellectual property lawyers under 30 by Lawyers Weekly Australia. In the same year he was part of a team which won the Best Team award at the Online Courts Hackathon in London.

In 2012–2013, Peter spent 18 months as a judicial clerk to a judge of the Supreme Court of New South Wales. Prior to joining Kirkland, he was an IP lawyer at the leading Australian firm Gilbert + Tobin.


Thought Leadership


General Editor, Australian Corporations and Security Reports, since 2019

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

“Costs in Pro Bono Litigation,” Legal Tweaks, 2014


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

Intellectual Property Society of Australia and New Zealand (IPSANZ)

Australian Association of Constitutional Law

The Law Society of New South Wales (Australia)


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 Lawswith Honours2019
  • The Australian National UniversityGraduate Diploma in Legal Practice2012
  • University of New South WalesBachelor of Arts; Bachelor of Laws2011