Clyde M. Siebman practices throughout Texas with an emphasis on the Eastern District of Texas, the Dallas Division of the Northern District of Texas and the Austin Division of the Western District of Texas. He manages the firm’s offices in Sherman and Plano and has been trying cases in Marshall since 1992.

Clyde is Board Certified in Civil Trial Law by the Texas Board of Legal Specialization, and is a member of the American Board of Trial Advocates.  Clyde has been included in the annual Texas Super Lawyers list published by Thomson Reuters legal division in Texas Monthly magazine since the list debuted in 2003.  He has maintained an “AV” Peer Reviewed ranking (very high to exemplary) by Martindale-Hubbell^TM for over two decades, and he has earned selection to The Best Lawyers in America based on his expertise in Patent, Trademark, Copyright and Commercial Litigation. Clyde was named the 2018 Lawyer of the Year for Patent Litigation and 2019 Lawyer of the Year for Copyright Litigation in Dallas-Fort Worth in Best Lawyers in America. Clyde concentrates his practice on assisting companies, firms and individuals in complex civil litigation in the federal and state courts of Texas.

Clyde began his federal practice serving as a law clerk to the late United States District Judge Paul Brown, traveling the district alongside Judge Brown serving in the Sherman, Texarkana and Beaumont Divisions of the Eastern District of Texas.  Clyde has appeared as counsel in approximately 500 Eastern District of Texas cases and he has regularly represented clients in cases before the Federal Circuit and 5th U.S. Circuit Courts of Appeal.

Clyde is a frequent lecturer on a variety of legal topics including federal court practice, patent litigation, business litigation, discovery and local practices in the Eastern District of Texas.  Clyde regularly is called to moderate judicial panels and participate in legal conferences including those sponsored by the State Bar of Texas, Eastern District of Texas Bar Association, Oregon Patent Law Association, New York Intellectual Property Law Association, Oklahoma Bar Association, Colorado Bar Association, Federal Circuit Bar Association, American Intellectual Property Law Association, the Sedona Conference and the Leahy Institute of Advanced Patent Studies. He was a member of a delegation of attorneys and judges that presented the first patent mock trial at Beijing University in China and delivered a presentation on U.S. trial practices at Southwestern University School of Law and Political Science in Chongqing, China.

Clyde currently serves as Chairman of the Bench Bar Conference of the Eastern District of Texas and as Chairman of the Advisory Committee for the Institute for Law and Technology of the Center for American and International Law in Plano (formerly Southwestern Legal Foundation).  Clyde previously served as a member of the Eastern District of Texas’ Local Rules Advisory Committee, Non-Appropriated Fund Committee and U.S. Magistrate-Judge Merit Selection Committee. He founded the Eastern District of Texas Bar Association under the auspices of presiding U.S. Senior District Judge Richard Schell in 1996 and served as its founding president.

Clyde is active in Texas public affairs, including serving by way of Gubernatorial appointments as Chairman of the Grayson County Regional Mobility Authority, Commissioner of the Red River Interstate Compact Commission, Commissioner of the Red River Boundary Commission and to the Board of Directors of the Red River Authority of Texas.  Clyde was named Conservator of Texarkana’s Riverbend Water Resources District by the 82nd Texas Legislature.  He also has served on the Board of Directors of the State Bar of Texas and is a former member of the Presidential Electoral College of the United States.

Clyde is a graduate of Southern Methodist University.  He earned a Bachelor of Business Administration from the Cox School of Business and Juris Doctor from the Dedman School of Law, where he graduated as a Hatton W. Sumners Law Scholar. He was a member of SMU’s National Moot Court Team that advanced to nationals in 1983.  Clyde also holds a Bachelor of Arts in Psychology from SMU which he earned with distinction.

Clyde’s wife is serving her seventh term as an elected County Court at Law Judge.  Clyde is an amateur Texas historian, loves to travel and is an avid outdoorsman.  The Siebman family is an East Texas pioneer family.