Usefulness, or utility, is a statutory requirement for patentability. The
standard for utility is low. Utility is a necessary pre-condition for patentability. In order for a patent to be valid, the invention it purports to protect must be useful.
2017 FC 777 - The FC rejected Teva’s allegations that Pfizer's Canadian patent was obvious and lacked utility. The FC found that the POSITA would not have been able to predict the novel crystalline form taught by the patent, and that the subject-matter of the invention claimed in the patent was useful.
2017 FC 774 - The FC granted Pfizer's order pursuant to Section 6 of the PM(NOC) Regulations, prohibiting the Minister of Health from issuing a NOC to Apotex, with respect to a Canadian patent The FC found, on a balance of probabilities, that Apotex’s allegations of obviousness, inutility, non-infringement, overpromising, anticipation and double patenting were not justified.
2017 SCC 36 - The Supreme Court of Canada struck down the “promise doctrine” of Canadian patent law in favour of merely requiring a single use related to the nature of the subject-matter of the invention having a scintilla of utility.
Case No. UNCT/14/2 - An ICSID Tribunal dismissed Eli Lilly’s claim against Canada, which was brought in relation to two Canadian patents owned by Eli Lilly that had been invalidated for failing to provide the utility they promised.