Michelle Anne Callaghan

Michelle Anne Callaghan is a patent attorney with a focus on defensive patent litigation, primarily in the software and electronics sectors. Her technical experience covers a range of technologies including communication networks, video coding, virtual reality, cloud storage, and multimedia content delivery. The authoritative case data shows her exclusively representing defendants, which aligns with descriptions of her practice as being focused on defending clients against patent demands.

Ms. Callaghan was previously with the intellectual property boutique Erise IP, where she worked as of counsel on the defense team in Ironburg Inventions Ltd. v. Collective Minds Gaming Co. Ltd. In 2019, she joined Unified Patents as Senior Patent Counsel. In this role, she represents the organization in post-grant proceedings before the Patent Trial and Appeal Board (PTAB), challenging patents and preparing and litigating inter partes review (IPR) petitions.

Her practice involves both district court litigation and PTAB proceedings. Prior to her role at Unified Patents, her work at Erise IP included defending clients in district court, challenging patents before the PTAB, and preparing opinions on patent validity and infringement.

Ms. Callaghan earned her J.D. from the University of Colorado Law School and a B.S. in environmental engineering from Johns Hopkins University.