Fed. Circ. Upholds Ruling For Aventis Over ALS Drug

Law360, New York (October 6, 2008, 12:00 AM EDT) -- An appeals court has sided with Sanofi-Aventis U.S. LLC in a patent dispute with generics maker Impax Laboratories Inc. over a drug to treat Lou Gehrig's disease, upholding a lower court's ruling that a key patent is valid.

The U.S. Court of Appeals for the Federal Circuit ruled Friday that the U.S. District Court for the District of Delaware correctly determined last year that Aventis's drug Rilutek was not anticipated by an earlier patent, as Impax had argued.

The dispute was over a key patent for...
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