USPTO Will Confirm Key Lipitor Patent: Pfizer

Law360, New York (April 30, 2008, 12:00 AM EDT) -- Pfizer Inc. said Wednesday that the U.S. Patent and Trademark Office will confirm the patentability of one of its key patents for the cholesterol drug Lipitor.

The USPTO has notified Pfizer that will confirm the claims of U.S Patent Number 4,681,893, which was issued in 1987 and covers Lipitor's active ingredient, atorvastatin, the company said. The patent doesn't expire until 2010, including pediatric exclusivity.

Pfizer said it was pleased with the decision, which it said affirms the company's position that the patent was properly granted. Lipitor...
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