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Cory Claassen focuses his practice on the preparation and prosecution of U.S. and foreign patents in the electrical, optical, and mechanical fields. Cory's practice extends to patent infringement and validity opinions, patent portfolio management, and intellectual property strategy and counseling. He provides these services to clients across a diverse array of technologies, including semiconductor devices, electronics, display and imaging technologies, applied optics, fiber optics, applied physics, micro-electro-mechanical systems (MEMS), medical devices, and circuits.

Prior to law school, Cory served as an ASIC designer at Nortel Semiconductors and as a microwave engineer at Norsat International Inc. He holds a B.A.Sc. in physics and electrical engineering from the University of British Columbia, and a J.D. from Santa Clara University School of Law.

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  • Professional Experience

    Christensen O'Connor Johnson KindnessPLLC
    Seattle, WA, 2017 – present

    Blakely Sokoloff Taylor & Zafman LLP
    Seattle, WA, 2002 – 2017

  • Technical Experience

    Microwave Engineer
    Norsat International Inc.

    ASIC Design Engineer
    Nortel Semiconductors

  • Professional Affiliations

    • Washington State Patent Law Association


    J.D., magna cum laude, Order of the Coif, Santa Clara University Law School, 2002

    B.A.Sc., with distinction, Physics and Electrical Engineering, University of British Columbia, 1999

Bar & Court Admissions

    • United States Patent and Trademark Office
    • Washington State Bar


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