PTAB Proceedings Toolkit

Resources concerning Patent Trial and Appeal Board (PTAB) proceedings under the Leahy-Smith America Invents Act (AIA), including resources discussing inter partes review (IPR), post-grant review (PGR), covered business method review (CBM), PTAB trial practice, coordinating PTAB and district court litigation, prior art, anticipation, and obviousness.

Practical Law Intellectual Property & Technology

Since taking effect under the Leahy-Smith America Invents Act ( (AIA) in 2012, post-grant patentability challenges at the Patent Trial and Appeal Board ( (PTAB) have become an important part of the patent litigation landscape. PTAB patentability challenges, which commonly overlap with related district court litigation, present unique challenges to patent practitioners, including:

  • Choosing the appropriate PTAB challenge.

  • Identifying prior art to assert in the challenge.

  • Developing patentability challenge grounds and responses.

  • Preparing and filing petitions (for the patent challenger) and responses to petitions (for the patent owner).

  • Understanding PTAB trial procedure.

  • Coordinating PTAB and district court litigation.

This toolkit provides several continuously maintained resources designed to help a patent challenger's or patent owner's counsel in post-grant patentability challenges at the PTAB.


Understanding the AIA and PTAB Challenge Types


Identifying Prior Art


Developing Patentability Challenges


Filing Petitions and Responses


Understanding PTAB Trial Procedure


Coordinating PTAB and District Court Litigation

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