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"Improper Revival" Not A Cognizable Defense In An Action Involving The Validity Or Infringement Of A Patent

Client Alert | 1 min read | 09.24.08

In Aristocrat Technologies Australia PTY Ltd. v. International Game Tech. (No. 2008-1016; Sept. 22, 2008), the Federal Circuit reverses a district court's grant of summary judgment that U.S. Patent No. 7,056,215 ("the '215 patent"), and the continuation patent that followed it, are invalid on the grounds that the U.S. Patent and Trademark Office "improperly revived" the '215 patent after it was abandoned during prosecution. The Federal Circuit holds that "improper revival" is not a cognizable defense in an action involving the validity or infringement of a patent, reasoning that the proper revival of an abandoned application is not a defense recognized by the patent statute nor is it a ground specified in the patent statute as a condition for patentability.

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Client Alert | 3 min read | 11.20.25

Design Patent Application Drawings & Prosecution History Must Be Clear (Merely Translucent Won’t Suffice!)

Design patents offer protection for the ornamental appearance of a product, focusing on aspects like its shape and surface decoration, as opposed to the functional aspects protected by utility patents. The scope of a design patent is defined by the drawings and any descriptive language within the patent itself. Recent decisions by the Federal Circuit emphasize the need for clarity in the prosecution history of a design patent in order to preserve desired scope to preserve intentional narrowing (and to avoid unintentional sacrifice of desired claim scope)....