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Siddharth Kusumakar

Partner

Siddharth
Kusumakar

Partner

  • +44 (0)20 3040 8155
  • siddharth.kusumakar@powellgilbert.com
  • linkedin.com/in/siddharth-kusumakar
  • People
  • Siddharth Kusumakar

An IP litigator with a scientific background, Sidd advises clients across a broad range of technologies, especially in disputes having an international element and involving complex technical issues.
 
Sidd specialises in multi-jurisdictional patent litigation in the medtech, biotech and pharmaceutical sectors. He has represented clients in litigation before the UK Patents Court, Court of Appeal and Supreme Court, as well as in EPO proceedings – and has successfully acted for clients in some of the most high-profile patent cases to come before the UK courts in recent years, including the landmark UK Supreme Court decisions in Warner-Lambert v Actavis and Regeneron v Kymab.
 
Sidd has considerable experience of actively assisting with litigation in various European courts and the coordination with parallel US litigation.  He also advises on freedom to operate, regulatory issues and matters of confidential information. 
 
 
Sidd joined Powell Gilbert as an associate in 2012, and became a partner in 2019.
 

Key cases

  •  Regeneron v Kymab (biotech – antibodies / transgenic mice)

  • Advanced Bionics v MED-EL (medical devices – cochlear implants)

  • Edwards Lifesciences v Meril (medical devices – transcatheter heart valves)

  • Abbott v Edwards Lifesciences (medical devices – transcatheter mitral valve repair)

  • Warner-Lambert v Actavis & Others (pregabalin)

  • AIM Sport Vision v Supponor (technology – augmented reality)

  • Forty Seven v SSB (biotech – therapeutic antibodies)

  • Edwards Lifesciences v Boston Scientific (medical devices - transcatheter heart valves) 

  • Merck Sharp & Dohme v Royalty Pharma Collection Trust (pharmacueticals – DPP-IV inhibitors)

  • CompactGTL v Velocys (engineering – catalysts) 

  • TCT v Ericsson (telecommunications)

  • Mölnlycke v BSN Medical (wound dressings)

  • HTC v Apple (smartphones)

  • L’Oréal v eBay (trade mark – e-commerce / keyword advertising)

Qualifications
  • 2008 Solicitor
  • 2014 Solicitor Advocate
Education
  • BSc (Microbiology and Immunology), McGill University (Canada)
  • MSc (Immunology), Imperial College London
  • Diploma in Intellectual Property Law and Practice, Oxford University
Awards and recognition
  • IAM Patent 1000: The World’s Leading Patent Professionals
  • Managing IP EMEA Awards - UK Patents (Contentious) Firm of the Year (2021, 2019, 2018)
  • IAM Global IP Awards, UK Patent Law Firm of the Year (2020, 2019)
  • Managing IP's Rising Stars (2019)
  • Recommended Individual JUVE Patent UK
Connections and networks
  • EPLAW and LSLA

…an expert in managing multi-jurisdictional patent litigation in the pharmaceutical field and has twice acted successfully before the Supreme Court

IAM Patent 1000 2022

he is an exceptionally good litigator

JUVE 2022

thinks strategically and knows the important points to push and those to keep in reserve – He is unflappable, dependable and gives sound legal advice that helps to advance our business needs

IAM Patent 1000, 2022

great for life sciences

JUVE 2021

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