Pfizer Drops Suit Against Lilly Over Viagra Patent

Law360, New York (March 18, 2010, 4:10 PM EDT) -- Pfizer Inc., which recently suffered a blow in the U.S. Patent and Trademark Office's re-examination of a patent for Viagra, has moved to drop an infringement case against Eli Lilly & Co. Inc. over a rival erectile dysfunction drug.

The pharmaceutical giants filed a joint stipulation Monday asking the U.S. District Court for the District of Delaware to dismiss Pfizer's infringement claims with prejudice and strike Lilly's affirmative defenses.

The document noted that the court has not ruled on any of the claims or defenses in...
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