Inter Partes Review

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A party accused of infringing a patent may challenge the validity of the patent in the federal court infringement litigation or in separate administrative proceedings in the Patent and Trademark Office’s Patent Trial and Appeal Board (PTAB). One of the methods available in the PTAB is an inter partes review (IPR), which was created by the America Invents Act.

In order to file a petition for IPR, the challenger must argue that some or all of the claims of the patent are invalid on certain grounds, including novelty and nonobviousness, and must show that there is a “reasonable likelihood” that they will prevail on at least one claim.  The statutes require that a petition for IPR be filed within one year of the challenger being served with a complaint for patent infringement.  35 USC section 315(b).   The PTAB reviews the petition and decides whether to institute IPR.  The decision whether to institute IPR is not appealable.  35 USC section 314(d). 
Continue Reading Supreme Court Limits Appeals to Prevent More Bad Patents

There are a number of requirements that must be met for an invention to be patentable. The invention must be novel (unique) and nonobvious (i.e., a person skilled in the field of the invention would not have found the invention obvious based on the existing knowledge in the field). In addition, the patent application must meet other requirements, including written description (the application must contain a detailed, clear, and definite written description of the invention) and enablement (the application must describe how to make and use the invention). If the patent application satisfies all of the requirements, a patent is issued.

A third party can challenge an issued patent on several different grounds, either in litigation or in the Patent and Trademark Office’s Patent Trial and Appeal Board (PTAB). If the challenge is successful, some or all of the patent’s claims will be invalidated. If only some of the claims are invalidated, those claims will be canceled from the patent and the remaining claims will be enforceable.
Continue Reading IPRs Cannot Be Used to Challenge Patents for Indefiniteness

To use a textbook or other reference to challenge the validity of a patent in a petition for inter partes review (“IPR”), the textbook must have been “publicly accessible” prior to the date of the challenged patent to qualify as a printed publication. Is a copyright notice sufficient evidence that a textbook was publicly accessible? The short answer is no in most, if not all, cases.  In Hulu, LLC v. Sound View Innovations, LLC, the PTAB denied Hulu’s IPR petition on the ground that Hulu had not provided sufficient evidence to show that a prior art textbook with copyright and ISBN dates was publicly available as of those dates.  As a result, Hulu requested rehearing of the PTAB decision denying institution of inter partes review of the validity of Sound View’s patent, U.S. Patent No. 5,806,062.  Hulu argued the decision was in conflict with other PTAB decisions “involving the public availability of an asserted ‘printed publication.’” 
Continue Reading Is a Copyright Notice Sufficient Evidence a Textbook Is a Printed Publication for Institution of Inter Partes Review?

In Arthrex Inc. v. Smith & Nephew Inc. et al., case number 18-2140, the U.S. Court of Appeals for the Federal Circuit recently considered whether the appointment of the Board’s Administrative Patent Judges (“APJs”) by the Secretary of Commerce, as currently set forth in Title 35, violates the Appointments Clause of the U.S. Constitution.  The Federal Circuit held that the statute as currently constructed makes the APJs principal officers.  To remedy the violation, the Federal Circuit concluded that severing the portion of the Patent Act restricting removal of the APJs is sufficient to render the APJs inferior officers and remedy the constitutional appointment problem.  As the final written decision on appeal issued while there was an Appointments Clause violation, the appropriate course of action was for this case to be remanded to a new panel of APJs.
Continue Reading Federal Circuit Holds Administrative Patent Judges Appointments Unconstitutional