Post-Grant Patent Proceedings

Even after a patent is granted, its validity can still be challenged through administrative proceedings before the U.S. Patent and Trademark Office. Processes such as Inter Partes Review (IPR), Post-Grant Review (PGR), ex parte reexaminations and other post-grant procedures enable parties to challenge the validity of a patent on technical or legal grounds. Because these proceedings are generally quicker and more focused than traditional litigation, they often play a key role in patent disputes.

Leason Ellis appears for both patent owners and challengers in proceedings before the Patent Trial and Appeal Board (PTAB). Our team evaluates the strength of asserted patents, identifies strategic grounds for challenge or defense, and prepares petitions, responses, and supporting evidence.

Post-grant proceedings are frequently used alongside district court litigation as part of a wider dispute management strategy. We collaborate with clients to identify when PTAB proceedings can offer leverage, minimize risks, or help resolve disputes more effectively, ensuring that administrative actions align with overall business and litigation goals.