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Pier D. DeRoo
+1 650 849 6684

Stanford Research Park
3300 Hillview Avenue
Palo Alto, CA 94304-1203

+1 650 849 6600
Fax +1 650 849 6666

Bar and Court Admissions

  • District of Columbia
  • Maryland
  • U.S. Court of Appeals, Federal Circuit
  • U.S. Patent and Trademark Office
  • Admitted in Maryland and the District of Columbia only; not admitted in California.


  • University of Michigan Law School
    J.D., with honors, 2011
  • Princeton University
    A.B., Chemistry, with honors, 2006

Pier D. DeRoo


Pier DeRoo focuses on patent litigation and strategic counseling in the chemical, pharmaceutical, and electrical arts. His experience includes pre-suit analysis, pleadings, motion practice and briefing, and trial representation in U.S. district courts, the U.S. International Trade Commission (ITC), and the U.S. Court of Appeals for the Federal Circuit. His practice also includes patent portfolio development and management, reexamination, and inter partes review (IPR) before the U.S. Patent and Trademark Office (USPTO). His practice covers a broad range of technologies, including fragrances, paint components, plastic bags and films, antidiuretic and antipsychotic pharmaceuticals, photovoltaic cells, batteries, electronic cigarettes, collaboration software, and Internet security.

Before law school, Mr. DeRoo gained technical experience in crystalline and solid-state chemistry. His research thesis examined the synthesis and characterization of various perovskite-type crystalline compounds. In law school, he conducted research on problems and solutions for effectively employing intellectual property in a globalized economy.


  • Lead attorney on Federal Circuit amicus brief filed on behalf of pro bono client.
  • Worked as a research assistant on arbitration strategies for Professor J.J. Prescott, University of Michigan Law School, 2008-2009.
  • Worked as a summer associate at Finnegan, 2010.
  • Served as managing notes editor for the Michigan Journal of International Law, 2010-2011.

Professional Activities

  • American Intellectual Property Law Association (Washington DC networking leadership, New Lawyers Committee, 2012-present)
  • American Bar Association
  • Federal Circuit Bar Association

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