Extremity Medical v. Nextremity Solutions — Federal Circuit Affirms Attorney Fee Award After Patent Found Unpatentable in IPR

Background

Extremity Medical sued Nextremity Solutions for infringement of U.S. Patent No. 8,303,589, which relates to orthopedic implant devices. The district court litigation was stayed pending resolution of an inter partes review (IPR) of the patent. The Patent Trial and Appeal Board ultimately found the patent unpatentable.

After the IPR concluded, Nextremity moved in the district court for attorney fees under 35 U.S.C. § 285, seeking recovery for costs incurred in both the district court litigation ($52,573) and the IPR proceedings ($343,660.86). The district court found the case “exceptional” under the Octane Fitness standard, awarded fees for the district court litigation, but denied fees for the IPR proceedings. Both sides appealed.

The Court’s Holding

The Federal Circuit affirmed the district court’s decision on both issues.

On the attorney fee denial for IPR proceedings, the court agreed that § 285 does not authorize fee-shifting for work done in IPR proceedings before the Patent Trial and Appeal Board. Following its precedent in Amneal Pharmaceuticals LLC v. Almirall, LLC, the court held that IPR proceedings are separate from district court litigation, and § 285 attorney fees are limited to fees incurred in the civil action.

On Extremity’s cross-appeal challenging the exceptional-case determination, the court found no abuse of discretion. The district court properly identified a pattern of unsupported litigation conduct by Extremity — including pursuing infringement claims while knowing the patent’s validity was questionable and failing to present adequate arguments in support of its positions throughout the litigation. The court emphasized the “holistic and equitable approach” required under Octane Fitness and found Extremity’s asserted good-faith belief and efficiency arguments unpersuasive.

Key Takeaways

• Attorney fees under § 285 remain limited to district court proceedings — patent owners cannot be required to pay the accused infringer’s IPR costs, even when the patent is ultimately invalidated.
• Continuing to press infringement claims when a patent’s validity is under serious question can contribute to an exceptional-case finding, particularly when the patent owner fails to support its litigation positions adequately.
• The exceptional-case standard under Octane Fitness looks at the totality of the circumstances — no single factor is dispositive, but a pattern of weak positions across the litigation can tip the balance.

Why It Matters

This case clarifies the boundary between district court fee-shifting and IPR costs — a practical concern for any company involved in parallel patent proceedings. While the ruling protects patent owners from having to pay the full cost of an opponent’s IPR defense even when the patent is invalidated, it also sends a warning: continuing to litigate aggressively in the face of questionable patent validity can result in the case being deemed exceptional and the patent owner footing the bill for the accused infringer’s district court fees.