Best Mode

Must Every Canadian Patent Application Include the Inventor’s Best Mode of Working the Invention?

It was thought until quite recently that any applicant for a Canadian patent had to disclose in his specification the best mode then known of working his invention (Minerals Separation North American Corp. v. Noranda Mines Ltd., [1947] Ex. C.R. 306, rev’d (1952) 69 R.P.C. 81 (P.C.)). Then came Sanofi-Aventis Canada Inc. v. Apotex Inc., […]

"Don't Hide The Ball" - Best Mode in the US Patent System

  I am pleased to join you from south of the border. My work has been focussed in the United States. Intellectual property laws are very powerful and important today. Yet they are but part of the larger body of law in any country. They are also part of a developing fabric of international commercial […]