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Intellectual Property Litigation

We offer expert litigators with a wealth of experience in defending and enforcing your rights before the trial and appellate courts in all areas of intellectual property.  Our cases have included patent, trademark, trade secrets, copyright, and other intellectual property litigation. We have represented clients in the pharmaceutical, chemical, life sciences, biotechnology, automobile, sports, retail, and food industries.  Many of our lawyers have degrees in sciences and engineering.  We work closely with our clients to offer strategic solutions to their intellectual property disputes.

The Team

Intellectual Property Litigation

Recent Cases

Intellectual Property Litigation

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding apixaban.

6(1) PM(NOC) Regulations

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding apixaban.

6(1) PM(NOC) Regulations

Application under the Patented Medicines (Notice of Compliance) Regulations regarding silodosin.

6(1) PM(NOC) Regulations

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding linagliptin.

6(1) PM(NOC) Regulations

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding linagliptin.

6(1) PM(NOC) Regulations

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding linagliptin.

6(1) PM(NOC) Regulations

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding linagliptin.

6(1) PM(NOC) Regulations

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding linagliptin.

6(1) PM(NOC) Regulations

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding linagliptin.

6(1) PM(NOC) Regulations

Application under s.18.1 of the Patented Medicines (Notice of Compliance) Regulations regarding lenalidomide.

18.1 PM(NOC) Regulations

Trademark opposition before the Trade‑marks Opposition Board (2025 TMOB 241).

Trademark Opposition

Proceeding for patent impeachment relating to pembrolizumab.

Patent Impeachment

Application for a declaration of non‑infringement regarding pembrolizumab.

Declaration of Non-infringement

Application for a declaration of non‑infringement regarding pembrolizumab.

Declaration of Non-infringement

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding apalutamide.

6(1) PM(NOC) Regulations

Action under section 8.2 of the Patented Medicines (Notice of Compliance) Regulations regarding apalutamide.

8.2 PM(NOC) Regulations

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding apalutamide.

6(1) PM(NOC) Regulations

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding aflibercept.

6(1) PM(NOC) Regulations

Action under section 8.2 of the Patented Medicines (Notice of Compliance) Regulations regarding aflibercept.

8.2 PM(NOC) Regulations

Action under section 8.2 of the Patented Medicines (Notice of Compliance) Regulations regarding aflibercept.

8.2 PM(NOC) Regulations

Action under section 8.2 of the Patented Medicines (Notice of Compliance) Regulations regarding aflibercept.

8.2 PM(NOC) Regulations

Application under subsection 6(1) of the Patented Medicines (Notice of Compliance) Regulations regarding empagliflozin.

6(1) PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,652,442 and 2,771,403 (lenvatinib).

6(1) PM(NOC) Regulations

Actions under the  new Patented Medicines (Notice of Compliance) Regulations regarding Patent  No. 2,632,375 (diclofenac).

8.2 PMNOC

Actions under the  new Patented Medicines (Notice of Compliance) Regulations regarding Patent  No. 2,932,603 (diclofenac).

6(1) PMNOC

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,606,282, 2,967,453, and 3,003,988 (dolutegravir-abacavir-lamivudine).

6(1) PMNOC

Counsel to defendants in patent infringement action relating to use of imazamox herbicides regarding Patent No. 2,447,445.

Patent Infringement

Counsel to respondent trademark owner in expungement proceedings regarding trademark TMA822855. Successfully applied for dismissal of proceeding due to undue and inexcusable delay (2024 FC 579).

Trademark Expungement

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,606,282 (dolutegravir).

6(1) PMNOC

Counsel to defendants in trademark infringement and passing off action relating to agricultural products regarding trademark TMA483211. Settled on favourable terms.

Trademark Infringement

Actions under the  new Patented Medicines (Notice of Compliance) Regulations regarding Patent  No. 2,671,357 (canagliflozin).

6(1) PMNOC

Actions under the  new Patented Medicines (Notice of Compliance) Regulations regarding Patent  No. 2,534,024 (canagliflozin).

6(1) PMNOC

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,655,212 and 2,705,163 (vortioxetine).

6(1) PMNOC

Counsel to defendants in patent infringement action relating to laminate flooring regarding Patent Nos. 2,522,321, 2,226,286, 2,410,206, and 2,475,076.

Patent Infringement

Actions under the  new Patented Medicines (Notice of Compliance) Regulations regarding Patent  No. 2,832,157 (brexpiprazole).

8.2 PMNOC

Actions under the  new Patented Medicines (Notice of Compliance) Regulations regarding Patent  No. 2,602,247 (brexpiprazole).

6(1) PMNOC

Actions under the  new Patented Medicines (Notice of Compliance) Regulations regarding Patent  No. 2,851,588 (brexpiprazole).

6(1) PMNOC

Counsel to the opponent in trademark opposition relating to industrial equipment. Successfully opposed registration of mark (2023 TMOB 64).

Trademark Opposition

Counsel to trademark owner in expungement proceedings. Successfully maintained marks (2023 TMOB 43; 2023 TMOB 44; 2023 TMOB 45).

Trademark Expungement

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,752,437 (linagliptin).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,936,852, 2,485,143, 2,544,621 and 2,781,799 (riociguat).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,696,558 and 2,752,435 (empagliflozin).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,649,922 (linagliptin).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,732,803 (linagliptin).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,472,399, 2,590,511 and 2,703,598 (sacubitril/valsartan).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,782,179 (linagliptin).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,696,558 (linagliptin).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,738,367 (linagliptin).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,557,801, 2,606,650, 2,751,833 and 2,813,661 (empagliflozin).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,496,249 (linagliptin).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,589,765, 2,589,921, 2,701,778, 2,741,312 and 2,873,044 (carfilzomib).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,731,370 and 2,764,475 (selexipag).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,731,370 and 2,764,475 (selexipag).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,845,553 and 2,990,210 (tenofovir alafenamide/emtricitabine).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,845,553 (tenofovir alafenamide).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations relating to Patent No. 2,682,598 with respect to products containing sapropterin.

Patent Infringement

Actions under the new Patented Medicines (Notice of Compliance) Regulations relating to Patent No. 2,450,740, No. 2,529,400 and No. 2,536,251 as well as  patent infringement actions relating to Patent No. 2,518,435 with respect to products containing sitagliptin and products containing both sitagliptin and metformin.

Patent Infringement

Action for copyright infringement. Acting as counsel on motions relating to the Statement of Claim and appeals therefrom.

Copyright

Counsel  to the defendants in patent infringement action relating to control system  for lift axles on vehicles regarding Patent No. 2,756,470. Settled shortly  before trial on favourable terms.

Patent Infringement

Action under the new Patented Medicines (Notice of Compliance) Regulations relating to Patent Nos. 2,440,472, 2,521,885, and 2,803,922 (doxycycline).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations relating to Patent Nos. 2,621,273 and 2,659,770 (macitentan).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations relating  to Patent No. 2,794,060 (pomalidomide).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations relating  to Patent No. 2,752,550 (pomalidomide).

New PM(NOC) Regulations

Application for leave to appeal to the Supreme Court of Canada in a patent impeachment action relating to Patent No. 2,261,630 (infliximab)

Biosimilars

Action under the new Patented Medicines (Notice of Compliance) Regulations relating to Patent No. 2,402,894 (saxagliptin).

New PM(NOC) Regulations

Counsel to defendants in copyright infringement proceeding. Proceeding dismissed (2019 FC 1199).

Copyright Infringement

Interlocutory appeal in a patent impeachment action relating to Patent No. 2,261,630 (infliximab)

Biosimilars

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,819,967 (pirfenidone).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,710,358 (pirfenidone).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,710,014 (pirfenidone).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,631,646 (pirfenidone).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,937,365 (pirfenidone).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,667,654 (pirfenidone).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,620,380 (pirfenidone).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,709,997 (pirfenidone).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,762,013 and 2,620,380 (pirfenidone).

New PM(NOC) Regulations

Patent infringement regarding Patent No. 2,743,326 (daptomycin).

Patent Infringement

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,344,318 and 2,743,326 (daptomycin).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,461,202 (apixaban).

New PM(NOC) Regulations

Appeal of a trademark expungement case regarding Registration Nos. TMDA22577 and UCA44562 (HORLICKS).

Trademark

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent No. 2,791,171 (apixaban).

New PM(NOC) Regulations

Counsel to appellant in appeal of judgment of patent infringement. Successful on  appeal and matter remitted to trial judge for re-determination in accordance with appeal reasons (2018 FCA 140). Matter subsequently settled.

Patent Infringement

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding  Patent Nos. 2,823,159, 2,634,310 and 2,547,113 (rivaroxaban).

New PM(NOC) Regulations

CIRA domain name dispute relating to the domain name STRIPMEISTER.CA.

Trademark

Interlocutory appeal in a patent impeachment action regarding Patent No. 2,261,630 (infliximab).

Biosimilars

Interlocutory appeal in a patent impeachment action regarding Patent No. 2,261,630 (infliximab).

Biosimilars

Appeal in a patent impeachment case regarding Patent No. 2,261,630 (infliximab).

Biosimilars

Interlocutory appeal in a patent impeachment action regarding Patent No. 2,261,630 (infliximab).

Biosimilars

Statutory appeal in a patent impeachment case regarding Patent No. 2,261,630 (infliximab).

Biosimilars

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,540,547, 2,596,133, 2,376,596 and 2,407,556 (trastuzumab).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,540,547, 2,596,133, 2,376,596 and 2,407,556 (trastuzumab).

New PM(NOC) Regulations

Action under the Trademarks Act and the Competition Act regarding Registration Nos. TMA580,557 (ENERGIZER MAX), TMA157,162 (ENERGIZER) and TMA740,338 (ENERGIZER).

Trademark

Motion/Application under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,540,547, 2,596,133, 2,376,596 and 2,407,556 (trastuzumab).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,823,159, 2,634,310 and 2,547,113 (rivaroxaban).

New PM(NOC) Regulations

Action under the new Patented Medicines (Notice of Compliance) Regulations regarding Patent Nos. 2,507,002 and 2,496,780 (silodosin).

New PM(NOC) Regulations

Patent impeachment case regarding Patent No. 2,596,133 (trastuzumab).

Patent Impeachment

Patent infringement case regarding Patent No. 2,787,952 (bevacizumab) with counterclaim for infringement under the new Patented Medicines (Notice of Compliance) Regulations.

Patent Impeachment; New PM(NOC) Regulations

Patent impeachment case regarding Patent No. 2,376,596 (trastuzumab).

Patent Impeachment

Patent impeachment case regarding Patent No. 2,329,829 (trastuzumab).

Patent Impeachment

Patent impeachment case regarding Patent No. 2,540,547 (trastuzumab).

Patent Impeachment

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