Christopher A. Guerreiro

Senior Associate
Norton Rose Fulbright Canada LLP

Christopher A. Guerreiro

Christopher A. Guerreiro

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Christopher Guerreiro practises intellectual property dispute resolution and litigation, with an emphasis on patents and issues affecting the life sciences, healthcare, and other high-technology industries.

Mr. Guerreiro has spent much of his career working with innovative pharmaceutical companies. As a litigator and advisor, he focusses on developing dispute-resolution strategies that align with the unique interests and business objectives of clients in this space—whether through litigation or a negotiated outcome.

Mr. Guerreiro has particular experience with complex pharmaceutical and medical-device patent disputes. He has advised in a range of patent enforcement and defence proceedings before Canada's Federal Courts. Among them, Mr. Guerreiro was counsel on the first four actions brought under section 6 of the new Patented Medicines (Notice of Compliance) Regulations. His patent litigation work has touched on infringement, impeachment, and damages issues; a range of therapeutic areas; and both small-molecule and biologic products. Work in this space has often involved multi-jurisdictional coordination and management of out-of-court resolutions.

Mr. Guerreiro also advises on other contentious issues arising under the Patent Act, including patent-listing eligibility and issues concerning the Patented Medicine Prices Review Board (PMPRB). Mr. Guerreiro's work in this area has focussed on ongoing changes to the Canadian pharmaceutical price regime.

Mr. Guerreiro joined us in 2011 as a summer student. He is an associate editor of our Pharma in Brief bulletin and leads a number of programmes related to associate development and substantive legal knowledge, team-building, and mentorship within the firm. He is also an active contributor to process development and project management initiatives that drive efficiency in the delivery legal services on complex mandates.

Mr. Guerreiro is an Osgoode Hall Law School Silver Medallist and is ranked as a "Rising Star 2020" by Managing IP's IP Stars. Mr. Guerreiro has delivered lectures and hands-on training in representative negotiation to law students.

Professional experience

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J.D., Osgoode Hall Law School, 2012 (Silver Medallist)
B.Sc. (Hons.), University of Toronto, 2009
  • Ontario 2013
  • Osgoode Hall Law School Silver Medallist
  • McCarthy Tétrault LLP Prize for the student standing second in first year
  • Christopher Robinson Prize for the student who takes second place in the examinations of the final year
  • Blake, Cassels & Graydon Prize in Business Associations
  • Gurston Allen Prize in Conflict of Laws
  • Aird & Berlis Prize in Contracts
  • McMillan LLP Prize in Contracts
  • Harry R. Rose Criminal Law Prize
  • Kenneth Gibson Morden Memorial Prize in Evidence
  • Cassels Brock & Blackwell Prize in Legal Process
  • Canadian Bar Association
  • Ontario Bar Association
  • Toronto Intellectual Property Group
  • The Advocates’ Society
  • English

Client work