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Liz Cohen

Partner – Patent litigation

Liz Cohen's headshot

“Liz Cohen is excellent. She is incredibly commercially astute, very good at anticipating the opposing party’s plans and coming up with strategies”

Liz’s background in natural sciences provides her with an excellent understanding of the technical and commercial issues facing those operating in the life sciences industry. With over 25 years’ experience, and known for her commercial savvy and technical polish, she is a sought after adviser for pharmaceutical, biotech and medical devices companies alike.

Liz has represented companies in the life sciences industry in patent matters in the English Courts all the way up to the Supreme Court. With her extensive experience of coordinating cross-border litigation within Europe, and her knowledge of jurisdictional strategy and procedure, Liz is also a key member of our team of English and European qualified IP specialists regularly advising clients on their approach to, and participation in, the Unified Patent Court.

She has developed her high profile and expertise by working for leading companies in the sector including:

  • Representing Les Laboratoires Servier in patent infringement and revocation proceedings where she used her Higher Rights advocacy qualification to secure an interim injunction at short notice in relation to Servier’s ACE inhibitor Perindopril market. She took this matter all the way to the Supreme Court and a subsequent damages enquiry in the UK.
  • Representing Smith & Nephew Plc in patent infringement and revocation proceedings in relation to technology in its antimicrobial wound management devices resulting in several appeals including to the Supreme Court, a case recognised for its significance by The Lawyer Awards winning Liz and her team TMT team of the year.
  • Representing Fresenius Kabi in patent litigation proceedings in relation to its patents for biosimilars of Adalimumab.
  • Representing Chiesi Farmaceutici SpA in patent infringement and revocation proceedings in relation to its market leading inhaler formulation Fostair against several generics.

Liz is qualified as a solicitor advocate, a qualification that gives her full rights of audience in civil court cases enabling her to represent her clients in court without the need to instruct a barrister.

Liz is a member of CIPA, EPLAW and EPLIT. She is also an established Tutor and Examiner on the Post Graduate Diploma in Intellectual Property Law & Practice at Oxford University (invitation only).

Credentials

  • MA Natural Sciences, University of Cambridge
  • Diploma in Intellectual Property Law and Practice, University of Bristol
  • Qualified 2001
  • Solicitor Advocate 2005
  • Partner 2008
  • Joint Managing Partner 2017 – 2023
  • The Law Firm Partner as Leader Judge Business School, University of Cambridge, 2017
  • Admitted in Republic of Ireland 2024
  • UPC Representative 2024

What others say

“Liz Cohen is an outstanding practitioner, who provides the perfect balance of legal knowledge and strategic thinking to help clients achieve good commercial outcomes.” Chambers and Partners 2026
“She is an excellent team leader and delegates effectively, something that is important for management of litigation budgets. She has a calm, considered manner and good client care skills.” Chambers and Partners 2026
“Liz is an absolute pleasure to work with. She is very commercially minded and a really good team player.” Chambers and Partners 2026
“Liz is an excellent and really good commercial strategist.” Chambers and Partners 2025
“Her attitude and empathy makes her a very nice person to work with as she is able to build a sentiment of trust and team spirit.” Chambers and Partners 2025
“Liz Cohen and Brian Cordery stand out. They are extremely client-focused, understand the industry and client needs and provide nothing short of first-class service every time.” Legal 500 2025
“Immensely experienced and accomplished litigator Liz Cohen makes all the right strategic moves to secure vital victories for her following.” IAM Patent 1000 2024
“Liz Cohen is excellent. She is incredibly commercially astute, very good at anticipating the opposing party's plans and coming up with strategies." Chambers and Partners 2024
“Liz Cohen is understated and calm but really knows her stuff and has very sound judgment.” Legal 500 2024

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