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Your Innovation Partners

We Protect the Ideas That Make the World a Better Place

History of Excellence in IP Law

Seattle’s Premier IP Law Firm Since 1929

At COJK, our only focus is on the protection of our clients’ valuable intellectual property rights. This demanding and exacting legal practice requires professionals with technical industry experience and sound intellectual property legal knowledge. Our over 95-year history of excellence in intellectual property law is the direct result of generations of highly motivated, skillful, creative, and responsive attorneys who have an intimate knowledge of the industries they serve.

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95+ Years In Practice

Highly Skilled Professionals

Meet Our Exceptional Legal Team

COJK attorneys approach every challenge with a high level of sophistication, innovation, passion, and creativity. We are committed to seeking and delivering strategic advantages for our clients.

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Why Clients Choose COJK

Intellectual property is at the forefront of the law. COJK attorneys understand that IP law has the very real potential to be defined with each new patent, trademark, or copyright application.

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World IP Day 2025: IP and Music

World Intellectual Property (IP) Day is observed annually on April 26. Established by the World Intellectual Property Organization (WIPO) in ...

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Protecting Innovation for over 95 Years

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