Pfizer, Worldwide income of Pfizer's Viagra from 2003 to 2019 (in million U.S. In change, the inventor, in this case Pfizer, will get the unique rights to market the invention for a restricted period. The court docket said Pfizer, primarily based in New York, broke that bargain. The choice by the Canadian courtroom is at odds with U.S. The 7-zero choice Thursday to open Viagra to competitors forward of its 2014 patent expiration underscores a significant difference in how the Canadian and Unite...