Obviousness

October 27, 2014

Expert witnesses proven to be pivotal in Dow Chemical patent infringement suit

Dow Chemical Co v NOVA Chemicals Corp, 2014 FC 844 - The Federal Court found that NOVA Chemicals infringed Canadian Patent No. 2,160,705, owned by The Dow Chemical Company, by NOVA’s use of its “SURPASS” polyethylene product. Allegations of invalidity for lack of utility, claims broader than any invention made or disclosed, anticipation, obviousness, double patenting, and insufficiency of the specification were unsuccessful.
October 17, 2014

Federal Court Invalidates Patent on Infomercial Garden Hose

E Mishan & Sons, Inc v Supertek Canada Inc, 2014 FC 326 - The Federal Court dismissed an infringement claim made by the plaintiffs regarding the sale of self-expanding garden hoses by the defendants because the infringed claims were declared invalid for obviousness.
October 16, 2014

Federal Court Upholds Re-examination Board’s Decision Invalidating Waste Heat Recycling Claims

Newco Tank Corp v Canada (Attorney General), 2014 FC 287 - The person of ordinary skill in the art was determined to have background knowledge that there was a heat inefficiency problem that the invention seeks to address. The only evidence for this proposition is that it was discussed under the “SUMMARY OF THE INVENTION” heading of the patent.
July 31, 2014

Federal Court Prohibited Issuance of a NOC for Generic Version of Lumigan

Allergan Inc v Apotex Inc, 2014 FC 567 - In terms of claim construction, this case shows the tension between construing claims based solely on the wording of the claims versus peering beyond the wording of the claims to distill an underlying invention.