Erin Villaseñor represents clients in all aspects of commercial and intellectual property litigation. She has extensive experience in patent, copyright, and trade secret litigation and arbitration involving a variety of technologies, including oil and gas, biotechnology, medical devices, computer business methods, and telecommunications. Erin has also been counsel in several technology-driven litigations involving the Uniform Commercial Code, the Computer Fraud and Abuse Act, unfair competition, conspiracy, fraud and breach of fiduciary duties, restrictive covenants, and employment contracts. Additionally, Erin has litigated banking and securities cases. Erin also counsels clients on FDA medical device regulatory issues and strategies. 

Prior to her legal practice, Erin worked as a biomedical engineer/scientific reviewer for the United States Food and Drug Administration, Center for Devices and Radiological Health, Office of Device Evaluation. Additionally, she held a position as a regulatory specialist at a medical device company specializing in neuromodulation devices and also worked as a medical device consultant for a prominent consulting firm. Erin’s technical background and industry experience make her uniquely equipped to handle technologically challenging cases.

Honors & Recognitions

The Texas Supreme Court recognized Erin for achieving the third highest score on the February 2010 Texas Bar Examination



J.D., South Texas College of Law, summa cum laude, 2009

Graduated first in class
South Texas Law Review, Member

B.S.E., Tulane University, with honors, Biomedical Engineering, 2003



United States District Court for the Northern, Southern, Eastern and Western Districts of Texas


  • Defendants as second-chair trial counsel in Eastern District of Texas patent litigation. Obtained a winning jury verdict of non-infringement and invalidity of two patents (“Texas Jury Invalidates Greenies Dog Treat Patents,” Law360, May 9, 2016; “How True Science Won a Dog (and Cat) Fight Against Mars,” The Texas Lawbook, May 16, 2016).
  • The nation’s largest supplier of concrete post-tensioning systems for high-rise buildings as trial counsel in a copyright and trade secret theft case that resulted in a $24.5 million jury verdict in favor of the client (The National Law Journal’s Top 100 Verdicts of 2015).
  • A large oil and gas service company in several trade secret and non-compete litigations against former employees and their new employers in Texas state and federal courts.
  • A drilling company in a lawsuit in the 215th Judicial District Court of Harris County, Texas against six former employees and two corporate defendants involving products and services in the horizontal directional drilling industry. Successfully obtained a temporary restraining order, expedited discovery, and temporary injunction against defendants.



Houston Bar Association, Member

Houston Intellectual Property Law Association, Member

Intellectual Property Owner's Association, Member

Houston Technology Center’s Life Sciences Acceleration Committee, Member, 2011-2015