PTAB Trials

PTAB Trials

The America Invents Act (AIA) created several proceedings for challenging patent validity at the U.S. Patent and Trademark Office. These proceedings, which are held before the Patent Trial and Appeal Board (PTAB), include inter partes review (IPR), post‑grant review (PGR), and the transitional program for covered business method patents (CBM).

MBHB attorneys are uniquely qualified to handle proceedings before the PTAB. Indeed, not only do our attorneys have extensive litigation experience and comprehensive knowledge of the underlying technologies, but we also interact with the U.S. Patent and Trademark Office on a daily basis. Moreover, we have decades of experience handling cases before the PTAB and its predecessor, the Board of Patent Appeals and Interferences. With this specialized blend of skills, we know exactly what it takes to represent clients in all aspects of PTAB proceedings— from pre-institution strategy through oral hearing (and beyond).

Our attorneys are also dedicated to monitoring the latest developments at the PTAB, which puts us in the best possible position to educate and advise our clients on this quick-paced alternative to district court patent litigation. The News & Events and Publications tabs contain presentations and articles we have authored on topics relating to PTAB litigations.

Please join our PTABTrials group on LinkedIn for the latest information on IPRs, PGRs, CBMs and CAFC appeals relating to these PTAB trial proceedings.


At McDonnell Boehnen Hulbert & Berghoff LLP, we work to obtain broad and comprehensive protection for our clients’ intellectual property, enhancing value through the application of our technological and legal expertise. Our practice areas encompass all aspects of intellectual property law – including litigation, prosecution, and counseling; as well as copyright, patent, trade secrets, and trademark, unfair competition and advertising law.

Each of our experienced attorneys is registered to practice before the U.S. Patent and Trademark Office. We negotiate patent licenses and help our clients establish and manage patent portfolios worldwide. Our core technical competency is extensive. Our attorneys have practical industry experience in a number of technological disciplines and product categories including cannabis, biotechnology and pharmaceuticals, chemical, electrical, mechanical and materials, medical device and diagnostics, software and business methods, and telecommunications.

At MBHB, we know high-technology industries, and we know the law. We work with our clients to provide them with the benefit of our extensive knowledge and experience, so that they can rest assured that their technology assets are protected.