Pfizer Wins Viagra Patent Case

8/15/11Follow @arleneweintraub

A U.S. District Court judge ruled in favor of New York-based Pfizer (NYSE: PFE) in a patent-infringement case brought by Israel’s generic drug giant Teva (NASDAQ: TEVA) over impotence blockbuster sildenafil (Viagra), according to a press release. Teva had been trying to invalidate Pfizer’s patent so it could market a generic version of the drug, but the ruling upholds Pfizer’s patent protection until 2019. Sildenafil is one of Pfizer’s biggest hits, bringing in $1.9 billion in sales in 2010.

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