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Siddharth Kusumakar photo

Siddharth Kusumakar

Partner specialising in patent litigation in the pharmaceutical, biotechnology and medical devices fields. Provides strategic advice in large scale multi-jurisdictional disputes with parallel European, US, UPC and European Patent Office actions, and particularly known for managing and coordinating pan-European litigation strategies for international clients. Has successfully acted in some of the most high-profile patent cases to come before the UK courts in recent years, including in two landmark UK Supreme Court decisions (Warner-Lambert v Actavis and Regeneron v Kymab). As a UPC legal representative, is currently acting in some of the first cases to be brought before the new Unified Patent Court. · Powell Gilbert LLP

EnglandIntellectual Property, Patent Litigation

About

Partner at Powell Gilbert LLP in England who specialises in patent litigation for the pharmaceutical, biotechnology and medical devices sectors, providing strategic advice in large-scale multi-jurisdictional disputes (European, US, UPC and EPO). Known for managing pan‑European litigation strategies for international clients and has acted in high‑profile UK cases including Warner‑Lambert v Actavis and Regeneron v Kymab; appointed as a UPC legal representative and is acting in some of the first cases before the Unified Patent Court.

Practice areas

Intellectual PropertyPatent LitigationLife SciencesPharmaceuticals & BiotechnologyMedical DevicesInternational LitigationEuropean Patent OfficeUnified Patent Court

Office

Expertise

PharmaceuticalsBiotechnologyMedical DevicesPan‑European patent litigationUPC representationEPO proceedingsStrategic multi-jurisdictional coordination

Education

  • Queen Elizabeth High School, Halifax, Nova Scotia, Canada
  • McGill University — BSc Microbiology and Immunology
  • Imperial College London — MSc Immunology
  • College of Law — GDL & LPC
  • University of Oxford — Diploma in Intellectual Property Law and Practice

Admissions

  • Solicitor, England & Wales (qualified 2008)
  • Solicitor Advocate (2014)
  • Solicitor, Ireland (2023)
  • UPC Representative (2023)