Firm News

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.

Stephen Liu rejoins Carstens, Allen & Gourley, LLP | New Partner Brings Extensive Technical Experience in Chemical and Electrical Engineering

DALLAS – September 22, 2020 Carstens & Cahoon, a full-service intellectual property law firm based in Dallas, Texas, is pleased to add Stephen Liu as its newest partner. Liu started his law practice with Carstens, Allen & Gourley and is returning after a short stint with another law firm.

Liu’s practice focuses on all areas of patent law, including prosecution, litigation and counseling, as well as trademarks, copyrights and trade secrets. He is a member of the State Bar of Texas and a registered patent attorney before the United States Patent and Trademark Office. Throughout his career, he has represented clients ranging in size from multi-national corporations to sole proprietors.

“Stephen made significant contributions to our firm previously, demonstrating a deep understanding of patents, and all other areas of intellectual property,” said David Carstens, one of the firm’s founding partners. “We are ecstatic to have him back and look forward to working with him to advise our clients as they navigate the global intellectual property environment. His background in both chemical and electrical engineering will bring valuable technical understanding to our clients.”

Liu received his law degree from Southern Methodist University, where he was a member of the International Law Review and a student attorney in the Civil Clinic, representing indigent clients.  He holds a Bachelor of Science degree in chemical engineering from The University of Texas at Austin, where he conducted graduate-level research in the field of cell and tissue engineering. Liu later went on to earn a second baccalaureate degree in electrical engineering from The University of Texas at Dallas.

About Carstens, Allen & Gourley, LLP
Carstens, Allen & Gourley is an intellectual property law firm based in Dallas, Texas. Founded in 1998, the attorneys of Carstens, Allen & Gourley are trusted legal advisors to some of the world’s leading companies, brightest entrepreneurs, and innovation investors. With exceptional technical skills and years of hands-on legal experience, the firm offers full-service intellectual property counsel including patents, trademarks, copyrights, trade secrets and intellectual property strategy. Learn more at