David P. Petersen

Senior Counsel

Portland Office



Dave counsels clients in connection with a wide variety of intellectual property issues. His practice includes preparation and prosecution of U.S. and foreign patent applications, plant patents, U.S. and foreign trademark protection, protection and registration of copyrightable works, licensing of intellectual property including patents, trademarks, copyrights and computer software. Although no longer practicing as a litigator, Dave has litigated patent and other intellectual property disputes.

Dave’s technical experience includes software, electrical engineering, and mechanical fields.

Dave joined Klarquist in 1975 as an associate and became partner in 1981.

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