Otis W. Carroll, Jr.

Otis W. Carroll, Jr. is an accomplished trial lawyer in East Texas with over 40 years of litigation experience, focusing on complex civil litigation including patent, civil fraud, oil and gas, antitrust, and breach of contract cases. His patent litigation experience spans technology areas such as microphone array systems for voice recognition and software registration and activation systems.

Mr. Carroll maintains a versatile practice, appearing on both the plaintiff and defendant sides in patent disputes. He frequently serves as local counsel in high-profile cases in the Eastern District of Texas, as evidenced by his roles in Marshall Feature Recognition, LLC et al. v. Amazon.com, Inc. (plaintiff side) and Uniloc USA, Inc. v. Ubisoft, Inc. (defendant side). His firm profile notes that his role is not limited to local counsel and he has experience first-chairing and managing large-scale litigation.

Currently, Mr. Carroll is with Carroll, Maloney, Henry & Nelson, PLLC (CMHN), a firm he co-founded. Prior to CMHN, he founded and practiced at Ireland, Carroll & Kelley, P.C. from 1984 to 2018. While he has appeared in cases where the underlying patents were subject to inter partes review (IPR) proceedings before the Patent Trial and Appeal Board (PTAB), such as the patent in Uniloc v. Ubisoft where claims were found unpatentable, direct regular appearances in PTAB proceedings are not explicitly detailed in publicly available information.

Mr. Carroll earned his B.B.A. from Texas A&M University in 1971 and his J.D. from the University of Texas School of Law in 1974, the same year he was admitted to the Texas bar. He is admitted to practice before the U.S. District Courts for the Northern, Southern, and Eastern Districts of Texas, the U.S. Courts of Appeals for the 5th and 11th Circuits, and the U.S. Supreme Court.