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Ma, Ziyu

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Klarquist Sparkman LLP
One World Trade Center
121 S.W. Salmon Street
Suite 1600
Portland, Oregon 97204

503.595.5300
503.595.5301

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Intellectual Property Counseling
Litigation
Post-Grant USPTO Proceedings
Patents
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About us

Klarquist is an intellectual property law firm based in Portland, OR specializing in patent prosecution, trademark and copyright management, and IP litigation. Founded in 1941, Klarquist is one of the oldest and largest full-service IP firms based on the West Coast.

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Our hiring goals are simple: hire the best and keep them happy. Top-caliber professionals practice law at Klarquist because here they can pursue their passion for law and their passion for life. View current openings here.

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Klarquist’s professional staff of attorneys and patent agents come from diverse backgrounds, and have deep and broad legal and industry experience. View our attorneys and agents here.

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