About Jon
Jon Ustundag completed both his legal and technical education at the University of California, Irvine, earning a J.D. from the School of Law in 2016 and a B.S. in Mechanical Engineering and Materials Science in the same year. The combination of engineering training and legal study gives him a dual perspective on complex technical problems and the intellectual property rules that apply to them. He moved from the classroom into practice equipped to bridge technical detail and legal strategy.
He began his legal career after law school and now serves as an associate at Jeffer Mangels Butler & Mitchell LLP. In that role he works on matters that require close attention to technical description and claim drafting. Colleagues describe his approach as methodical. He spends time translating engineering concepts into the precise language that patent offices and courts require.
Ustundag is admitted to practice law in California and is registered before the United States Patent and Trademark Office. Those credentials allow him to handle patent prosecution matters on behalf of inventors and companies. He also maintains active memberships in several professional organizations, including the State Bar of California, the Orange County Bar Association, the Orange County Intellectual Property Law Association, and the California Lawyers Association. Membership in those groups keeps him connected to both the legal community and regional peers focusing on intellectual property issues.
His technical background informs the work he does for clients. A grounding in mechanical engineering and materials science helps him assess patentability and craft patent claims that reflect the underlying inventions. That technical fluency also aids in client interviews, where translating a prototype or experimental result into patentable subject matter can be critical. He draws on that combination of training when preparing patent applications and advising inventors on prosecution strategy.
At Jeffer Mangels Butler & Mitchell LLP he contributes to team efforts on intellectual property matters that intersect engineering and innovation. He handles drafting, prosecution, and client counseling tasks that require both legal knowledge and technical literacy. He currently focuses his practice on patent preparation and prosecution, and on advising clients about intellectual property strategy.
