Intellectual Property Magazine
Packers Plus v Essential Energy et al
Supreme Court of Canada, 19 December 2019
Anthony Prenol, Blake, Cassels & Graydon
The Supreme Court of Canada’s decision on 19 December 2019
1 to deny leave to appeal in Packers Plus v Essential Energy et al (Packers Plus), brought to a close litigation that involved several interesting legal issues, including if and under what
circumstances two or more persons can be liable for patent infringement by common design.