David Sullivan

David Sullivan is the chair of the firm's Intellectual Property practice group and focuses his practice on intellectual property issues that arise in the energy industry, particularly in the area of patent, trademark and trade secret law. Sullivan is an established leader in procuring and enforcing patents within the oil and gas industry.

With a background in chemical engineering, David’s patent practice is largely focused on energy sector-related technologies, with a particular emphasis on downhole equipment, secondary production, well stimulation and refinery technologies. David has significant experience handling intellectual property litigation matters and is admitted to practice in a number of jurisdictions in the United States, including the Eastern District of Texas.

David also devotes a significant portion of his practice to intellectual property licensing and other transactional matters. He routinely assists clients with the negotiation of software licenses, consulting contracts and IP due diligence investigations. He is also responsible for maintaining and developing several large trademark portfolios.

American Intellectual Property Law Association, Member

American Bar Association Committee on Virtual Worlds and Computer Gaming, Member

Oklahoma Bar Association Intellectual Property Law Section, Past President