Brett Mangrum

Brett Mangrum


Office Location

The Roosevelt Tower
400 Austin Avenue, 9th Floor
Waco, Texas 76701


Brett Mangrum has over two decades of intellectual property experience derived from all sides of the table. He is a named inventor on eight issued U.S. patents, several of which he wrote personally. While attending law school at night, Brett continued to work fulltime as an engineer developing cutting-edge nanoelectromechanical systems. Before graduating within the top 10% of his J.D. class, Brett served as an editor of the law review, he was published twice, and he retired from his successful engineering position to join a respected national law firm, where he continued to work fulltime focusing primarily on patent prosecution and patent litigation.

In 2012, Brett transitioned to an in-house position as senior vice-president. His in-house responsibilities included overseeing monetization of the company’s extensive patent portfolio. This involved managing a team of in-house and external experts and working closely with external counsel on licensing and litigation efforts. While working in this complex role, Brett was named by DCEO Magazine as A Top Corporate Lawyer in Dallas-Fort Worth.

Dovetailing his diverse engineering and legal experiences together, Brett opened up a private legal practice in 2015 that he continued to grow for nearly a decade based largely on client referrals.

Brett’s present practice focuses primarily on helping clients to develop and monetize patent portfolios (including through litigation when necessary) and to defend the validity of their issued patents in post-grant review matters. In 2022, Brett ranked first nationally (by as the most active inter parties review (IPR) attorney and, notwithstanding that volume, he also ranked eighth nationally that same year in achieving successful outcomes for patent owners. Brett’s extensive background enables him to efficiently recognize and master the complex technological and legal issues that matter most to a case.