Are totipotent cells patentable in Canada?
Greg Hagen is an Assistant Professor in the Faculty of Law at the University of Calgary. While James Thomson’s claims to primate embryonic stem cells in U.S. Patent 5,843,780 (granted December 1st, 1998) were finally upheld on reexamination by the U.S. Patent and Trade-mark office in 2008, no Canadian patent was ever granted on these […]