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David Sullivan is a registered patent attorney and chair of the firm’s Intellectual Property and Technology group. David’s practice is primarily directed at obtaining and enforcing patent and trademark rights for his clients, who range from Fortune 500 companies to… Continue reading David M. Sullivan
Roger A. Stong is an experienced business lawyer, whose practice focuses on corporate, securities and bankruptcy reorganization law. Roger has represented clients in joint ventures, mergers and acquisitions, public and private offerings, securities law compliance and other general corporate and… Continue reading Roger A. Stong, President/CEO
Malcolm E. Rosser IV received a Bachelor of Architectural Studies from Oklahoma State University in 1977. After a year of graduate work in architectural engineering, he received his juris doctor from The University of Oklahoma in 1981. After 11 years… Continue reading Malcolm E. Rosser IV
Richard P. Propester joined Crowe & Dunlevy in March 2011 as a director in the Firm’s Securities Litigation Practice Group. He focuses his practice on commercial litigation, securities litigation, bankruptcy and banking law. Richard is a member of the Oklahoma… Continue reading Richard P. Propester