James G. DeRouin


Portland Office



Jimmy’s practice focuses on all aspects of intellectual property law, with a primary emphasis on the preparation and prosecution of U.S. and foreign patent applications. He also advises clients on patentability and portfolio strategies. Prior to joining Klarquist, he handled litigation, patent prosecution and counseling at firms in Chicago.

He has extensive experience in patent prosecution in the electrical and mechanical arts, including information technology, networking, software, navigation, image processing, and medical devices. Prior to his legal career he worked as an automation engineer, programming and testing automation control systems for the oil, gas, and chemical industries.

Jimmy joined Klarquist as a lateral associate in 2018.

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