The PTAB is primarily made up of an Appeals Division and a Trial Division. The Appeals Division, with over 100 Administrative Patent Judges, handles appeals of patent examiner rejections, with sections adjudicating different technology areas. The Trial Division, handles contested cases such as Inter Partes Review, Post Grant Review, Transitional Program for Covered Business Method Patents, and Derivation Proceedings. The PTAB is headed by a Chief Administrative Patent Judge, currently Scott R. Boalick.
Procedures
An applicant can appeal the examiner's decision to the PTAB. The appeal procedure is described in section 1200 of the U.S. Manual of Patent Examining Procedure. Typically, appeals to the PTAB are conducted ex parte. Decisions of the PTAB are typically rendered as an opinion.
In 2007, Professor John F. Duffy, a law professor, argued that, since 2000, the process of appointing judges to the BPAI has been unconstitutional, because the judges were appointed by the Director of the U.S. Patent and Trademark Office rather than by the Secretary of Commerce. This problem has since been rectified and current Administrative Patent Judges are appointed by the Secretary of Commerce. Starting in 2014, parties challenged the constitutionality of the PTAB to review and cancel patent claims under the Seventh Amendment and separation of powers doctrines. The Supreme Court decided in the 2018 Oil States case that this function of the PTAB was constitutional.
Claim construction standards
In January 2016, the United States Supreme Court agreed to hear a challenge to the legitimacy of the patent standards used in the Patent Trial and Appeal Board during inter partes review. In the case, Petitioner Cuozzo Speed Technologies, LLC, argued that the PTAB's use of the "Broadest Reasonable Construction" claim construction standard exceeded their authority, and that Congress had legislated that they follow the "Phillips" claim construction standard used in other U.S. Courts. On June, 20, 2016, the Supreme Court issued their opinion, upholding the PTAB's BRI claim construction standard. In response, in May 2018, the USPTO proposed adopting the Phillips claim construction.
Principal Officers versus Inferior Officers
On October 31, 2019, a three judge panel of the United States Court of Appeals for the Federal Circuit held that the members of the Board were Principal Officers of the United States due to the construction of the statute creating their offices. They further held that the were unconstitutionally appointed. They rectified the situation by severing the portion of the statute that restricted removal of the members of the Board, thus rendering them Inferior Officers of the United States.