Marian Wolanski *

Marian is a partner at Belmore Neidrauer LLP. 

Her practice focuses on patent disputes, with an emphasis on pharmaceutical and biotechnology patent litigation under the Patented Medicines (Notice of Compliance) Regulations.  Marian’s practice also includes providing freedom to operate and patent validity opinions as well as assisting clients with patent strategy.

Marian has appeared as counsel before the Federal Court, Federal Court of Appeal, and Supreme Court of Canada.

Marian’s recognitions include:

• 2025 LMG Patent Litigator of the Year – Canada
• Shortlisted for Practitioner of the Year (Patent Disputes) by Managing IP (2024 - 2026)
• 2018 LMG Canadian Rising Star

Marian is consistently recognized as a leading patent lawyer by in legal directories such as Chambers, Best Lawyers, Benchmark Litigation, LMG Life Sciences, Managing IP - IP Stars, Who’s Who Legal/Lexology, and IAM Patent 1000.

Clients and peers in the IP profession describe Marian as:

• “Compelling performer before the courts” and notes that Marian’s “training in molecular biology allows her to recognise and deconstruct difficult scientific concerns, all while navigating the complexities of patent litigation”. (IAM Patent 1000)
• “Smart as a whip and a great tactician” with “an impressive pedigree in patent litigation” and “Marian knows the law and can run a trial”. (Chambers Canada)
• "Efficient, skilled and persuasive to judges, and remains calm in stressful situations". (IAM Patent 1000)
• "Very measured, patient and responsive." (Chambers Canada)
• "Ability to distil intricate legal and scientific issues into coherent, persuasive cases." (IAM Patent 1000)
• "Known for leading litigation teams with precision, guiding junior lawyers through the procedural and strategic demands of patent disputes." (IAM Patent 1000)

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 Western University.  She also earned a M.Sc. degree and worked as a research associate in the area of molecular biology at the University of Windsor.

*practising through a professional corporation