Jason E. Stach

Jason E. Stach is a Partner at Finnegan, Henderson, Farabow, Garrett & Dunner, specializing in patent litigation across a diverse range of technologies. His practice encompasses electrical, computer, software, chemical, pharmaceutical, medical device, and mechanical technologies.

While his tracked district court appearances show him primarily representing plaintiffs, as lead counsel in cases such as VirnetX Inc. v. Cisco Systems, Inc. and Aerin Medical Inc. v. Neurent Medical Ltd. et al., his overall professional profile indicates extensive experience challenging and defending patents. The VirnetX case involved complex software and networking technologies, while the Aerin Medical case focused on medical devices.

A significant focus of Mr. Stach's practice is in post-grant proceedings before the U.S. Patent and Trademark Office's Patent Trial and Appeal Board (PTAB), where he leads Finnegan's PTAB trials practice. He has served as lead or back-up counsel in over 125 PTAB trials, including inter partes reviews (IPRs), covered business method reviews (CBMs), and post-grant reviews (PGRs), and consults on numerous others. Notably, he is involved in defending patents for Aerin Medical Inc. in a series of IPR challenges brought by Neurent Medical Ltd., including IPR2024-00277, which resulted in a final written decision finding the challenged patent claims unpatentable, with an appeal pending. He also represents clients in appeals to the U.S. Court of Appeals for the Federal Circuit stemming from PTAB decisions and district court actions.

Mr. Stach earned his J.D., with honors, from Emory University School of Law in 2003, and a B.S. in Industrial Engineering, with distinction, from Purdue University in 2000. He is admitted to practice before the U.S. Patent and Trademark Office and in Georgia.