Fed. Cir.

United States Court of Appeals for the Federal Circuit

Every decision we've summarized from United States Court of Appeals for the Federal Circuit.

May 13 2026
24-1641 Panel Decision

Actelion Pharmaceuticals Ltd v. Mylan Pharmaceuticals Inc

The United States Court of Appeals for the Federal Circuit affirmed a district court ruling that Mylan Pharmaceuticals did not infringe Actelion Pharmaceuticals' patents for a stable epoprostenol drug formulation. The court held that the patent claim term requiring a pH of thirteen or higher refers to measurements taken at standard temperature, and that Actelion was barred from asserting infringement by equivalence.

May 13 2026
25-1712 Panel Decision

Seoul Semiconductor Co., Ltd. v. Finelite, Inc.

The United States Court of Appeals for the Federal Circuit affirmed a district court ruling that a commercial agreement unambiguously incorporated a full contract of sale. The court held that the agreement's language required the defendant to indemnify the plaintiff for patent infringement claims arising in the United States, despite the contract limiting indemnification to the jurisdiction where title passed.

May 13 2026
25-1452 Panel Decision

COLLINS v. COLLINS

The United States Court of Appeals for the Federal Circuit dismissed an appeal from a Veterans Court order denying a petition for a writ of mandamus. The appellate court found it lacked jurisdiction because the petition failed to meet minimum pleading standards required to assess extraordinary relief.

May 12 2026
24-1758 Panel Decision

Ryno v. Army

The United States Court of Appeals for the Federal Circuit affirmed the Merit Systems Protection Board's decision in a federal employment dispute. The court issued a nonprecedential per curiam judgment without providing detailed reasoning.

May 12 2026
25-1997 Panel Decision

Perdue v. MSPB

The United States Court of Appeals for the Federal Circuit dismissed an appeal from the Merit Systems Protection Board as untimely. The court held that the petitioner failed to meet his burden to establish equitable tolling of the statutory filing deadline.