Pfizer Sues Teva Over Lipitor Patent
The complaint was filed by Pfizer and its subsidiary Warner-Lambert Co. in the U.S. District Court for the District of Delaware. Warner-Lambert, which merged with Pfizer in 2000, is the owner of the patent-in-suit, U.S. Patent Number 5,273,995.
The ‘995 patent describes atorvastatin calcium, a key ingredient in Lipitor. The patent does not expire until...
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