Leah McGurn

Leah practices intellectual property law, with a focus on patent litigation.

Leah received her Juris Doctor from the University of Toronto, where she completed an externship with the Structural Genomics Consortium. Leah competed in the Copyright Policy Moot 2020 where she won Best Policy Briefing and Best Memorandum to Cabinet with her partner.

Leah is a trained scientist and worked as a chemist for Apotex Inc. prior to law school. Leah completed her Master of Science in Toxicology at the University of Saskatchewan and an Honours Bachelor of Science in Biochemistry at the University of Guelph. While at the University of Saskatchewan, Leah obtained two NSERC CREATE program certificates in Human and Environmental Risk Assessment and Integrated Training Program in Infectious Disease, Food Safety and Public Policy.  

Leah joined the firm as a summer student in 2018 and 2019 and completed her articles with the firm in 2020-2021. She returned to the firm as an Associate in 2021.

Areas of Expertise

Representative Work

  • Awesense

    Awesense in its successful defence of a patent infringement action brought by dTechs EPM Ltd.

Latest Insights

  • Osler Update Feb 7, 2022

    How well does Canadian law protect information products? The case of patents over diagnostic methods

    While patent law exists to protect the technical contributions of inventors, a recent Australian case illustrates the difficulties of enforcing...

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  • Osler Update Dec 13, 2021

    Time to talk about ownership of AI-generated intellectual property assets

    Systems for protecting intellectual property (IP) have been in place since the Middle Ages, encouraging skilled, innovative technicians by granting...

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    Time to talk about ownership of AI-generated intellectual property assets

Media Mentions

  • Media Mentions Jan 11, 2023

    Enforcing diagnostic method patents in a world of patchwork protection – Landslide

    Securing effective patent protection over inventive diagnostic methods continues to be a challenge in several jurisdictions, particularly in the U.S.

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Speaking and Writing

Published Work

  • Leah McGurn, Secoisolariciresinol (SECO) analogues :oxidative metabolism, cytochrome P450 inhibition and implications for toxicity (2016) Saskatoon: University of Saskatchewan. 

  • McGurn, L. D. et al., The structure, kinetics and interactions of the β-carboxysomal β-carbonic anhydrase, CcaA. Biochem. J. 473(24) 2016 December



  • University of Toronto, J.D. (2020)
  • University of Saskatchewan, M.Sc.
  • University of Guelph, B.Sc. Hons.  


  • English