James M. Lennon

James M. Lennon is a seasoned patent litigator and partner at Devlin Law Firm, where he co-leads the firm's patent litigation practice. He possesses over two decades of experience representing both plaintiffs and defendants in high-stakes patent disputes across the United States, frequently serving as lead or local counsel in the District of Delaware. While his tracked appearances show a focus on plaintiff-side litigation, Devlin Law Firm actively represents plaintiffs asserting patent rights, defendants accused of infringement, and innovators seeking to protect their intellectual property.

Lennon's practice spans complex technologies, drawing on his technical background in geology from his prior work as a scientist at DuPont. He handles cases across diverse fields including computer technology, biological sciences, chemical engineering, and mechanical systems. Notable areas of engagement from his case history include mercury emissions reduction technologies for coal-fired power plants, as seen in the Midwest Energy Emissions Corp. litigations, and secure network optimization, virtual networks, SD-WAN, and cybersecurity in cases for Umbra Technologies Ltd.

His significant case involvement includes acting as Lead Counsel for Umbra Technologies Ltd. in Umbra Technologies Ltd. v. Zscaler, Inc. He also served as local counsel in multiple Midwest Energy Emissions Corp. cases, which culminated in a federal jury awarding Midwest Energy Emissions Corp. a $57 million patent infringement verdict against CERT Operations II LLC et al. for willful infringement of mercury emissions reduction patents. Additionally, Lennon has experience with Patent Trial and Appeal Board (PTAB) proceedings, having served as counsel for patent owners in Inter Partes Review (IPR) cases. In one instance, his firm successfully represented a client in an IPR where a Director Review vacated the decision to institute, effectively denying the IPR. He is also a registered patent attorney with the U.S. Patent and Trademark Office, actively engaged in patent prosecution to build robust global IP portfolios.

Mr. Lennon earned his J.D. from the University of North Carolina School of Law in 2001 and a B.S. in Geology, cum laude with distinction, from the University of Delaware in 1995. He is admitted to practice in Delaware, New York, Pennsylvania, and before numerous federal courts, including the U.S. Court of Appeals for the Federal Circuit.