Under Aro Manufacturing Co. v. Convertible Top Replacement Co., when is the replacement of a component not a contributory infringement?

Under Aro Manufacturing Co. v. Convertible Top Replacement Co., when is the replacement of a component not a contributory infringement?

• A. Permissible repair of unpatented components.
• B. Contributory infringement occurs in all replacement scenarios.
• C. Liability for entire assembly is automatic.
• D. Replacement of old fabric is always reconstruction.

Answer: (A)

Contributory infringement depends on selling a component that is especially made for use in the patented invention and has no substantial noninfringing use. In Aro Manufacturing, the Court held that replacement parts that are staples—common, widely used components with substantial noninfringing uses—do not support contributory infringement when they’re used to repair or replace worn parts. Because these parts can be used in noninfringing ways and are not uniquely designed to enable infringement, their sale for repair does not make the seller liable. So replacing an unpatented component to repair the device is not contributory infringement. The other choices don’t fit because they imply universal liability for replacements, automatic liability for the whole assembly, or that replacing fabric always reconstructs the patented invention, none of which aligns with the staple-article/repair principle from Aro.

Contributory infringement depends on selling a component that is especially made for use in the patented invention and has no substantial noninfringing use. In Aro Manufacturing, the Court held that replacement parts that are staples—common, widely used components with substantial noninfringing uses—do not support contributory infringement when they’re used to repair or replace worn parts. Because these parts can be used in noninfringing ways and are not uniquely designed to enable infringement, their sale for repair does not make the seller liable.

So replacing an unpatented component to repair the device is not contributory infringement. The other choices don’t fit because they imply universal liability for replacements, automatic liability for the whole assembly, or that replacing fabric always reconstructs the patented invention, none of which aligns with the staple-article/repair principle from Aro.