Eileen S. Sun, Ph.D.

Senior Associate


Eileen Sun's practice focuses on patent preparation, prosecution, and portfolio management for companies in the biotechnology sector, including immunotherapeutics, peptide therapeutics, antisense therapeutics, vaccines, molecular diagnostics, metabolic engineering of microorganisms, and drug formulations. She also assists clients in freedom-to-operate and patentability analyses for products in development and intellectual property due diligence.


Seattle University School of Law
J.D. (cum laude) 2009

University of Washington
Ph.D. 2004

Massachusetts Institute of Technology
B.S. 1994


Eileen's legal experience includes an in-house position as a patent agent at Rosetta Inpharmatics LLC, a wholly owned subsidiary of Merck & Co., Inc., where she was involved in patent portfolio management, preparation, and prosecution of patent applications in a variety of technologies, including splice variants, RNAi, molecular diagnostics, and gene expression profiling. Eileen also served as in-house counsel at Trubion Pharmaceuticals Inc. and Emergent Biosolutions. During her scientific career, Eileen worked in the field of genomics at the Whitehead Institute for Biomedical Research and characterized bacterial proteins and host immune response during syphilis infection during graduate school at the University of Washington.


Washington State Bar
Registered to practice before U.S. Patent and Trademark Office
Washington State Patent Law Association
Life Science Washington

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