About
Shawn M. Dellegar is a seasoned intellectual property attorney, director, and Vice President of Administration in Crowe & Dunlevy’s Tulsa office. He helps technology-focused manufacturers, contractors, startups, small businesses, and corporations protect ideas, manage IP portfolios, and solve complex business issues with practical legal guidance.
Shawn earned his Juris Doctor from the University of Tulsa College of Law in 2005. He served as vice president and founding member of the Information Technology Society. He also earned a Bachelor of Science in Management Information Systems and Chemistry from the University of Tulsa in 2000.
Shawn handles domestic and international patent and trademark portfolios, licensing, due diligence, and U.S. Patent and Trademark Office proceedings. His work covers many fields, including lithium and mineral extraction, wastewater treatment, combustion equipment, image processing, 3D printing, precision agriculture, functional foods, dental devices, and industrial processes.
Shawn has earned strong honors for his intellectual property work. He has been listed in Best Lawyers since 2017, ranked in Chambers USA since 2021, and recognized as an IP Star by Managing IP. He has also received Tulsa Lawyer of the Year honors from Best Lawyers.
Shawn is active in leading legal and professional groups. He serves on the Oklahoma Intellectual Property Alliance Board and is a Past President of the Oklahoma Bar Association’s Intellectual Property Section. He also belongs to major intellectual property associations and mentors law students interested in the field.
Shawn M. Dellegar gives clients clear, practical, and solution-focused support in intellectual property matters. His technology background, legal skill, and business-minded approach help clients protect assets, plan growth, and make smart decisions in competitive markets. Clients value his responsiveness, deep experience, and steady guidance.
Law Office Affiliations
- Shareholder, Crowe & Dunlevy
- Board of Directors, Oklahoma Bar Association, Intellectual Property Law Section
- Member, American Bar Association, Intellectual Property Law Section
- Member, International Trademark Association
- Member, American Intellectual Property Association
- Member, Tulsa County Bar Association
- Member, The International Association for the Protection of Intellectual Property
Licensed State
- Oklahoma
Education
- University of Tulsa College of Law
Juris Doctor (JD) - University of Tulsa
Bachelor of Science (BS)
Awards & Badges





- Copyright
- Patent
- Trade Secrets
- Trademark




