Douglas H. Elliott

Doug Elliott has more than 25 years of experience in intellectual property litigation, including patent, trademark, copyright and trade secret litigation cases. His practice is dedicated primarily to patent litigation, particularly representing small and medium-sized companies. He has represented a number of patent owners on a contingent-fee basis, resulting in more than $5 million in recoveries for clients. He joined Polasek, Quisenberry & Errington LLP as a partner in 2011.

Elliott’s patent practice has included freedom-to-operate opinions based on non-infringement and invalidity. In 2000, he conducted a due diligence investigation and rendered opinions directed to a biotechnology patent portfolio, resulting in an initial public offering exceeding $80 million.

As an attorney registered to practice before the United States Patent and Trademark Office, Elliott also has extensive experience in patent procurement, including preparing and prosecuting applications filed in the United States Patent and Trademark Office and in foreign countries. His has applied for and secured federal registration of trademarks and service marks, as well as represented clients in trademark opposition proceedings in the United States Patent and Trademark Office. His practice has covered a wide range of technologies, including welding, gas turbines, medical payment systems, website designs, credit card processing, seismic processing, oilfield chemicals, drilling techniques, polymers, catalysts, high speed cable modems, caskets, bicycles, filters, semiconductors and various aspects of biotechnology, including monoclonal antibodies, stents and prosthetics. His clients include domestic, foreign and international companies.​

Doug Elliott has a J.D from the University of Tulsa College of Law and a B.S. in Chemical Engineering from the University of Tulsa. He is bilingual in Spanish.

He has been honored with the American Jurisprudence Award in Constitutional Law and Administrative Law, and by the Order of Barristers and College of the State Bar.

He is admitted to all Texas courts, the U.S. Patent and Trademark Office, the U.S. District Court for the Eastern and Southern Districts of Texas, the U.S. Court of Appeals for the Fifth Circuit, the U.S. Court of Appeals for the Federal Circuit, and the Court of Federal Claims.

He is a member of the American Bar Association, the American Intellectual Property Law Association, the Houston Bar Association, the Houston Intellectual Property Law Association, the Intellectual Property Owners Association, the State Bar of Texas and the University of Tulsa, College of Law Alumni Association.

His publications and speaking engagements include: "Start with a strong trademark when branding a technology," Houston Bar Journal, Week of November 7-13, 2008; "Opinion Letters and Risk Management For Businesses With Patented Technology,” Executive Legal  Adviser, September/October 2007); "Ensuring Your E-Discovery Procedures are in Compliance with the New Rules,” (E-Discovery: Applying the New FRCP Changes, National Business Institute, August 17, 2007); "Offshore Activities and U.S. Patents," Executive Legal Advisor, July/August 2006; "BlackBerry still on life support as legal battle continues to rage," Houston Business Journal, Week of February 10-16, 2006; "Festo Shows Value of Carefully Drafted Patent Claims,” Texas Lawyer, June 3, 2002; "Trademarks,” Intellectual Property Institute, South Texas College of Law (1998); "Intellectual Property Basics (Patents, Trademarks, Copyrights and Trade Secrets),” Sponsored by Northeast Harris County Bar Association (1997); "Confidentiality Agreements and Other Intellectual Property Issues,” Advanced Oil and Gas Short Course, Sponsored by the University of Houston Law Foundation (Houston and Dallas, 1997); and "Patent, Trademark and Copyright Law: The Basics,” Corporate Partnership and Business Law Institute, Sponsored by the University of Houston Law Foundation (Houston and Dallas, 1996).