Mark D. Siegmund

Mark D. Siegmund


Office Location

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


Mark D. Siegmund was born in Austin, but grew up in China Spring, Texas – a small town located just outside of Waco, Texas. Mark attended Texas A&M University on a full Naval Reserve Officers Training Corps scholarship, where he was a member of the Corps of Cadets, Company E-2. After graduating with a degree in Finance, Mark began his service in the United States Marine Corps. After five years of service and two overseas deployments, Mark started his second career by attending Baylor Law School. Mark graduated Baylor Law School as the number one graduate of his class, where he was an Associate Editor for the Law Review, received the Steve Dillard Practice Court Award for academic achievement, and barrister status for his performance in moot court.

After graduating Baylor Law School, Mark served as a law clerk to United States Federal District Judge Alan D Albright, judge of the Waco Division of the Western District of Texas. Mark is admitted to practice in the Western, Eastern, and Northern Districts of Texas, as well as the Federal Circuit.

Mark practices in the areas of intellectual property, business, and other select litigation matters. Mark represents clients on both sides of the “v” and because of his prior experience, Mark is able to provide unique insight into any intellectual property litigation matter. Mark also serves as an adjunct professor of law at Baylor Law School.


  • Repeat v. DynaEnergetics – Successfully defended a jury verdict of non-infringement for DynaEnergetics in the Western District of Texas.
  • AML IP, LLC v. Adorn Boutique, LLC Successfully defended Adorn Boutique LLC in the Western District of Texas in a patent infringement lawsuit and achieved a favorable settlement for client.
  • Broadband iTV v. AT&T Successfully defended AT&T in a patent infringement lawsuit in the Wester District of Texas and helped obtain a favorable resolution of the case.
  • USB Bridge Solutions LLC v. ADATA Technology Co., Ltd Defended ADATA Technology Co. in a patent infringement lawsuit in the Austin Division of the Western District of Texas and successfully achieved a transfer to the Central District of California.
  • IGT v. Zynga, Inc. – Representing Zynga in an eight-patent case related to online gaming systems.
  • Textron Innovations LLC v. DJI – Representing Textron in a multi-patent case related to drone technology. Successfully secured a $279 million jury verdict against DJI in the Western District of Texas.
  • Future Link Systems v. Realtek Semiconductor – Representing Realtek in a patent case related to semiconductor technology.
  • DynaEnergetics Europe GmgH and DynaEnergetics US, Inc v. Schlumberger Technology Corporation – Representing DyndaEnergetics in a patent case related to perforating operations in the well completion process in the oil and gas industry.
  • WSOU Investments, LLC d/b/a Brazos Licensing and Development v. NEC Corporation – Successful represented Brazos in a patent infringement suit that resulted in a favorable resolution for Brazos.

Western District of Texas Patent Blog