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Supreme Court Modifies Claim Construction Review Standard

On Tuesday, the U.S. Supreme Court issued its decision in Teva Pharmaceuticals USA, Inc. v. Sandoz, Inc. partially modifying the standard of review to be applied by the Federal Circuit when reviewing a district court’s construction of a claim term. Prior to Teva, the Federal Circuit applied a de novo standard for claim construction review. Now, based on the Teva decision, the Federal Circuit must apply a “clear error” standard for factual questions, and a de novo standard for legal questions when reviewing a claim construction on appeal.