C. Dale Quisenberry -- AV Preeminent Rated
Dale is a seasoned attorney with over 27 years’ experience in intellectual property law. His practice includes obtaining patents, registering trademarks and copyrights, protecting trade secrets, litigating intellectual property lawsuits, licensing IP rights, non-infringement analysis and opinion preparation, due diligence in mergers and acquisitions, and counseling clients regarding a broad range of intellectual property issues, including design-around consultation, preparing agreements, product clearance studies, freedom to operate opinions, and strategic portfolio management.

He is registered to practice before the United States Patent and Trademark Office. He is experienced in prosecuting patent applications for a diverse range of clients and technologies, from inventions developed in the oil field to the road construction and software industries, and many others in between. He is also experienced in securing registrations in the United States Patent and Trademark Office of trademarks, service marks, logos, slogans, and has even been successful in registering the shape of a product as a trademark.

(​​​ 832) 680-1000


Dale has litigated numerous IP lawsuits in courts across the country as part of his nationwide litigation practice. He is experienced litigating claims for patent infringement, trademark infringement, trade dress infringement, unfair competition, Lanham Act violations, false advertising, false patent marking, copyright infringement, declaratory judgments and related state and common law causes of action, such as claims for breach of contract, tortious interference with existing and prospective business relationships, fraudulent concealment, and bad faith notice of infringement.

He recently obtained a permanent injunction in a trademark and unfair competition lawsuit from an Arizona federal court on behalf of a well-known Houston restaurant.  In another recent lawsuit for patent infringement, he obtained an injunction for one of his oil field clients from a Texas federal court.  Mr. Quisenberry has collected millions of dollars for his clients through patent infringement lawsuits he has litigated in courts throughout the United States.  On the defense side, he successfully defended a Wyoming-based restaurant in a patent infringement lawsuit in the Eastern District of Texas.  He is currently representing a photographer in multiple copyright infringement lawsuits against over 50 defendants filed in federal courts in Nevada, Delaware, Maryland and Tennessee.

Dale is admitted to practice in numerous courts, including the United States District Courts for the Southern, Eastern and Western Districts of Texas, the Northern District of Oklahoma, the United States Courts of Appeal for the Federal and Tenth Circuits, and the Court of Federal Claims. He has also been admitted pro hac vice in numerous United States District Courts throughout the country as part of his litigation practice, including in California, Oregon, Utah, Arizona, Nevada, Illinois, Ohio, Missouri, Tennessee, Maryland, New York, Florida, South Carolina, and Virginia.

Dale has been awarded the prestigious AV Preeminent Martindale-Hubbell Peer Review Rating.  This ranking is reserved only for attorneys ranked at the highest level of professional excellence for their legal expertise, communication skills, and ethical standards by their peers.

For a list of Dale’s representative lawsuits, click here .