Lawyer Profile Detail


Steven Tanner is a partner in our Intellectual Property Litigation Group in Toronto.

Mr. Tanner practices exclusively in the areas of Intellectual Property and Litigation, with an emphasis on pharmaceutical patent litigation, oil and gas patent litigation and consumer products patent litigation. He appears frequently in the Federal Court and Federal Court of Appeal, primarily in patent disputes.

A primary focus of Mr. Tanner’s practice relates to pharmaceutical litigation brought pursuant to the PM(NOC) Regulations. A selection of Mr. Tanner’s significant counsel work at hearings on behalf of innovative drug companies includes the following past applications:

  • Allergan Inc. et al v. Sandoz Canada Inc. et al (T-154-10) Re: COMBIGAN®
  • Allergan Inc. et al v. Apotex Inc. et al (T-1560-10 / A-312-12) Re: COMBIGAN®
  • Allergan Inc. et al v. Cobalt Pharmaceuticals Company et al (T-1125-12) Re: LUMIGAN RC®
  • Allergan Inc. et al v. Apotex Inc. et al (T-1151-12) Re: LUMIGAN RC®
  • Allergan Inc. et al v. Sandoz Canada Inc. et al (T-2068-15) Re: LATISSE®
  • Allergan Inc. et al v. Apotex Inc. et al (T-1098-15) Re: ALPHAGAN P (0.15%)
  • Abbott Laboratories Limited et al v. Apotex Inc. et al (T-585-06) Re: PREVACID®
  • Merck & Co. Inc. et al v. Pharmascience Inc. et al (T-1476-08) Re: PROPECIA®
  • Schering-Plough Canada Inc. et al v. Pharmascience Inc. et al (T-2102-07) Re: AERIUS®
  • Fournier Pharma Inc. et al v. Sandoz Canada Inc. et al (T-1184-10) Re: LIPIDIL EZ®

Mr. Tanner’s practice also focuses on patent infringement actions relating to pharmaceuticals. His significant efforts include AbbVie Corporation and others’ litigation against Janssen Inc. involving the biologic drug STELARA®. His past work for AbbVie Corporation and AbbVie Inc. involves litigation in respect of a treatment for Hepatitis C virus (T-1330-15, T-1332-15 and T-1990-15).

Beyond pharmaceutical litigation, Mr. Tanner has actively represented clients in oil & gas patent infringement cases. He was counsel for Wenzel Downhole Tools at the Federal Court of Appeal and in numerous cases pending before the Federal Court relating to downhole drilling and SAGD processes for the recovery of bitumen.

Mr. Tanner has also represented clients in patent infringement actions relating to consumer products (as counsel for Costco Wholesale, Wal-Mart Canada and Canadian Tire), life sciences (as counsel for Fresh Headies Internet Sales), machinery (as counsel for Beverly Turf Farms and John Vanderwoude Sod Farms) and paper products (as counsel for Kimberly-Clark).

Mr. Tanner received his Honours Co-operative Biochemistry (Biotechnology option) BSc from the University of Waterloo in 2001, and his JD from the University of Toronto Law School in 2005. He was called to the Ontario bar in 2006.

Mr. Tanner is a member of the Intellectual Property Institute of Canada (IPIC), the Law Society of Upper Canada (LSUC), the Ontario Bar Association (OBA) and the Canadian Bar Association (CBA).

In his spare time, Mr. Tanner is an avid guitar player. His band has released two albums and has performed at the El Mocambo and elsewhere in Toronto. He is also a dedicated downhill skier who has challenged the slopes in BC, Alberta, Quebec, Colorado, Wyoming, Vermont, New York, Arizona, New Mexico and Utah. Mr. Tanner is an active member of Triathlon Ontario and the Toronto Triathlon Club and has competed in various Olympic distance triathlons in southern Ontario.

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McCarthy Tétrault delivers integrated business law, tax, real property, labour and employment, and litigation services nationally and globally through offices in Vancouver, Calgary, Toronto, Montréal, Québec City and London, UK.