Fiona Legere Partner | Toronto

Some of Fiona’s recent notable matters include representing:

• EMD Serono and Merck Serono in ongoing patent litigation involving the drug Mavenclad (cladribine)

• Regeneron and Bayer in several ongoing patent infringement actions involving the blockbuster drug Eylea (aflibercept)

• AbbVie in several ongoing patent infringement actions involving the blockbuster drug Humira (adalimumab), in which AbbVie was successful in finding that the formulation patent was valid and infringed (AbbVie Corporation v. Jamp Pharma Corporation)

• Merck in a patent impeachment trial against Pfizer related to a pneumococcal conjugate vaccine (V114), in which Merck successfully cleared the path to launch its V114 vaccine in Canada (Merck v. Wyeth)

• Bell Canada and Telus in a patent infringement trial involving their internet protocol television systems against Rovi, in which the court dismissed Rovi’s case and found all four asserted patents invalid (Rovi Guides et al. v. Bell Canada and Telus)

• Bell Canada in a trademark infringement lawsuit involving Bell’s Fibe trademark

• Bell Canada, Telus and Rogers in a patent infringement action commenced by TracBeam involving wireless telecommunication services

• Bell Canada in a patent infringement trial relating to Fibe TV against Mediatube, in which the court dismissed Mediatube’s case and found that the patent was not infringed (Mediatube v. Bell Canada)

Fiona is continuously recognized as a leading intellectual property lawyer in the following publications and awards, including in the most recent editions:

• The Legal 500 Canada – 2024–2025 (Intellectual Property)
  

• Chambers Canada: Canada's Leading Lawyers for Business 2025 (Intellectual Property: Litigation)

• Chambers Canada: Canada’s Leading Lawyers for Business 2024 (Up and Coming – Intellectual Property: Litigation)

• The Canadian Legal Lexpert Directory 2023 (Litigation: Intellectual Property)

• Benchmark Canada: The Definitive Guide to Canada's Leading Litigation Firms and Attorneys 2024 (Litigation Star – Intellectual Property; 40 & Under List)

• Lexpert Special Edition: Technology and Health Sciences 2024

• Managing Intellectual Property’s IP Stars 2024 (Patent Star)

• IAM Patent 1000: The World's Leading Patent Professionals 2024 (Silver – Litigation)

• Who’s Who Legal: Life Sciences 2024 (Patent Litigation)

• Who’s Who Legal: Canada 2023 (Life Sciences and Patents)

• Who’s Who Legal: Intellectual Property 2023 (Patents)

• Lexpert Rising Stars 2023: Leading Lawyers Under 40

• Managing IP Americas Awards 2015 (Team member – Patent Contentious Team of the Year, Canada, and Milestone Case of the Year, Canada – represented Abbvie Corporation and others in Canada’s first patent infringement trial relating to biologics)

Fiona is a member of the American Intellectual Property Law Association, the Intellectual Property Institute of Canada, the Law Society of Ontario, the Ontario Bar Association and the Canadian Bar Association.

After law school, Fiona clerked at the Federal Court for Justices Snider, Crampton and Boivin.

Admitted to the Ontario Bar – 2011
JD, Osgoode Hall Law School, York University – 2010
BSc (Biochemistry, With Distinction) University of Western Ontario – 2006