2015 FC 997 - The FC found that the invention was merely to add a polymer to the slurry, which was known in the prior art, and to continue to do so until the slurry rigidified. The Court found this solution to be obvious to try, and sufficiently disclosed, even though the meaning of “rigidify” was never made clear.
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.