Sheree L. Rybak, Ph.D.


Portland Office



Sheree’s practice is focused on the preparation and prosecution of patent and trademark applications. She also prepares patentability opinions, freedom-to-operate opinions, non-infringement opinions, invalidity opinions, and prosecution and litigation of U.S. trademarks.

Sheree has expertise in biotechnology, including molecular biology, biochemistry, virology, medical diagnostics, and botany. She has extensive experience prosecuting plant patents. Additionally, Sheree has served on the firm’s Management Committee, and is the Chair of the firm’s Administrative Services Committee.

Sheree joined Klarquist in 1998 as a technical consultant and became partner in 2008.

Practice Areas
Professional Experience
Professional Activities
Honors & Awards
Presentations & Publications
Representative Patents

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