Sean M. Callagy

Sean M. Callagy is a patent litigator at Arnold & Porter, specializing in intellectual property and technology cases, encompassing patent, copyright, trademark, and trade secret laws. His practice covers a range of technologies, including digital transmission of audio and digital files, software, networking, proprietary footwear designs, and audio technologies. He handles both plaintiff and defendant-side representations, as evidenced by his work on behalf of Uniloc USA, Inc. as a plaintiff, and his defense of clients like ATopTech Inc. in software copyright and patent infringement matters.

Mr. Callagy's experience extends across various federal and state courts, including proceedings before the Patent Trial and Appeal Board (PTAB) and the Federal Circuit. Notable patent and IP-related engagements include his work for General Electric Co. in a patent infringement action concerning digital transmission technologies, and his involvement in SightSound Technologies LLC v. Apple Inc., which included district court, PTAB, and Federal Circuit proceedings. He also assisted in securing the dismissal of a majority of claims in Synopsys Inc. v. ATopTech Inc., a software copyright and patent infringement case.

He was elected partner at Arnold & Porter in 2018.

Mr. Callagy earned his J.D. from the University of California, Berkeley, School of Law in 2007, and his B.A. from the University of California, Berkeley in 2003. He is admitted to the California Bar.