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David S. Weigand

David S. Weigand Photo

David S. Weigand

Principal Attorney


David S. Weigand
(972) 628-3664


  • Southern Methodist University Dedman School of Law
    Dallas, Texas 2008
    Juris Doctorate
  • Oklahoma State University
    Stillwater, Oklahoma 1991
    B.S. Mechanical Engineering
    Honors: Phi Kappa Phi
    Honors: Pi Tau Sigma

Bar Admissions

Texas, 2008

U.S. Patent and Trademark Office

Attorney Bio

David S. Weigand is a principal attorney practicing in the technology/intellectual property law group.  David represents clients in patent preparation and prosecution.

David prepares and prosecutes domestic and international patent applications in a variety of technical areas, including telecommunications, semiconductor devices and device fabrication, process control systems, defense industry technologies, computer hardware and software, electrical circuitry, lighting systems, aircraft components, and medical devices. David also counsels clients in the areas of portfolio management, licensing, patentability, and infringement analyses.

David earned a B.S. in Mechanical Engineering from Oklahoma State University, where he was a member of Pi Tau Sigma and Phi Kappa Phi honor societies. He received his J.D. from Southern Methodist University Dedman School of Law.

Prior to his legal career, David worked as an information technology consultant and project manager.

Professional Associations & Memberships

American Bar Association

State Bar of Texas

Dallas Bar Association

Additional Education & Achievements

Leadership University Park
University Park, Texas

The Children’s Trust for Children’s Medical Center of Dallas