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Marian Wolanski

Direct: 416.863.3355
Fax: 416.863.9171

Marian Wolanski is a partner at Belmore Neidrauer LLP.  Marian practices intellectual property litigation, with a focus on pharmaceutical and biotechnology patent disputes and Patented Medicines (Notice of Compliance) proceedings.  Marian has appeared as counsel in the Federal Court and Federal Court of Appeal.  Marian’s practice also includes providing freedom to operate and patent validity opinions.

Marian was called to the Ontario bar in 2008.  While attending law school at the University of Windsor, Marian completed a clerkship at the Provincial Court and was the managing editor of the Windsor Review of Legal and Social Issues.  

Marian also has a technical background in the life sciences area and has co-authored several publications in scientific journals.  Marian earned a B.Sc.H. (Genetics) from the University of Western Ontario.  She also earned a M.Sc. degree and worked as a research associate in the area of molecular biology at the University of Windsor.


  • Called to the Ontario Bar, 2008
  • University of Windsor, LL.B., 2007
  • University of Windsor, M.Sc. (Molecular Biology), 2004
  • University of Western Ontario, B.Sc.H. (Genetics), 2000


  • Leading Life Sciences Lawyer in LMG’s Life Science’s 2022/23 edition
  • Chambers Canada 2023: Up and Coming 
  • IAM 1000:  The World’s Leading Patent Professionals 2022:  Litigation
  • Managing Intellectual Property IP Star 2022
  • Legal 500 Canada 2021: Next Generation Partners
  • Who's Who Legal 2020: Canada - Life Sciences
  • LMG Life Sciences 2020 Star
  • LMG Life Sciences Canadian Rising Star 2018


Date Title Type


Date Case Title Expertise
Aug 23, 2022 2022 FC 1218 Janssen v. Pharmascience
We successfully represented Janssen in defending the validity of the patent relating to Janssen’s INVEGA SUSTENNA® (paliperidone palmitat...


Jan 31, 2022 2022 FC 107 Janssen v Apotex
We successfully represented Janssen in this summary trial in the Federal Court on infringement issues against Apotex in respect of Janssen’s ...


Jan 19, 2022 2022 FC 62 Janssen v Pharmascience
We successfully represented Janssen in this summary trial in the Federal Court on infringement issues against Pharmascience in respect of Janssen&r...


Jan 14, 2021 2021 FC 7 Janssen v Apotex, Pharmascience and Dr. Reddy’s Laboratories
We represented Janssen and BTG in these patent infringement actions relating to Janssen’s prostate cancer product ZYTIGA®(abiraterone ace...


May 05, 2020 2020 FC 593 Janssen Inc. et al v Teva Canada Limited
We successfully represented Janssen in this patent infringement action under the new PMNOC Regulations concerning Janssen’s Invega Sustenna (...


More Cases


  • Intellectual Property Institute of Canada (IPIC), Member of Editorial Board of the Canadian Intellectual Property Review
  • Canadian Bar Association
  • The Advocates' Society

Marian Wolanski 


Direct: 416.863.3355
Fax: 416.863.9171

Melanie Carman
Direct: 416.863.3382T 416.863.3382

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