Brett A. Mangrum

Brett A. Mangrum is an experienced patent litigation attorney, currently serving as Of Counsel at Etheridge Law Group. His practice encompasses a broad range of intellectual property matters, with a focus on patent litigation, developing and monetizing patent portfolios, and defending patent validity in post-grant proceedings. His background as an engineer developing advanced nanoelectromechanical systems and as a named inventor on eight U.S. patents provides him with deep technical expertise across various technology areas.

In patent litigation, Mr. Mangrum's tracked appearances primarily reflect plaintiff-side representation, notably for Uniloc USA, Inc. in cases such as Uniloc USA, Inc. v. Ubisoft, Inc. and Uniloc USA, Inc. v. Sega of America, Inc.. He has extensive experience in inter partes review (IPR) proceedings, where he has been recognized nationally as a highly active practitioner. Specifically, he was ranked #1 nationally by Patexia.com as the most active IPR attorney and #8 nationally for achieving successful outcomes for patent owners.

Beyond district court litigation, Mr. Mangrum also possesses appellate experience, having been listed in a case before the Fourth Circuit Court of Appeals involving the United States Patent & Trademark Office. His professional affiliations include appearances before the U.S. Court of Appeals for the Federal Circuit, as well as federal district courts in Texas.

Mr. Mangrum earned his Doctor of Jurisprudence (J.D.) from Southern Methodist University in May 2008. He is admitted to practice in Texas.