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Home » U.S. Court Upholds Main Patent on Pfizer's Lipitor
U.S. Court Upholds Main Patent on Pfizer's Lipitor
August 2, 2006
A U.S. appeals court has upheld the exclusivity of the main patent covering atorvastatin -- the active ingredient in Pfizer's cholesterol drug Lipitor -- but struck down a second patent covering the crystalline form of atorvastatin that is sold as Lipitor, Pfizer said Aug. 2.