How They Won It: Kaye Scholer Saves Pfizer's Viagra Patent

Law360, New York (September 20, 2011, 6:18 PM ET) -- To sell a federal judge on the ingenuity of using an angina drug to treat erectile dysfunction, Kaye Scholer LLP attorneys put Viagra's inventors on the stand to defeat Teva Pharmaceuticals USA Inc.'s patent challenge — something of a leap of faith, as anyone who's slogged through an incomprehensible freshman biology lecture knows.

But after more than a decade of watching litigation over the blockbuster drug play out around the world, when it came time to defend Pfizer's method-of-use patent from Teva's obviousness challenge, the decision...
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