Supreme Court holds patentee cannot play hide-and-seek with the invention

Supreme Court holds patentee cannot play hide-and-seek with the invention
In Teva Canada Ltd. v. Pfizer Canada Inc., 2012 SCC 60, the patent at issue (the "446 Patent") related to the use of certain compounds for the treatment of erectile dysfunction ("ED"). One of the specific compounds covered was sildenafil, the active …

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