Represented Medtronic, Inc. in a dispute with Mirowski Family Ventures assertion that Medtronic’s cardiac resynchronization devices infringed certain claims of U.S. Patent Nos. RE38,119 and RE39,897. After a bench trial, a Delaware district court held that Mirowski Family Ventures, as the patentee, bore the burden of proving infringement and failed to meet that burden, entering a judgment of non-infringement on behalf of Medtronic. On appeal, the Federal Circuit reversed the district court on the burden of proof issue and held that Medtronic, as the licensee, bore the burden of proving non-infringement. Medtronic filed a petition for certiorari to the U.S. Supreme Court. The Supreme Court granted the petition and reversed the Federal Circuit, holding that the patentee always bears the burden of proof, even where the licensor cannot counterclaim for infringement because of the existence of a license agreement. On remand from the Supreme Court, the Federal Circuit affirmed the district court’s finding of non-infringement for Medtronic, awarding Medtronic a complete victory in the case.
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