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Maureen D. Queler
+1 202 408 4294

901 New York Avenue, NW
Washington, DC 20001-4413

+1 202 408 4000
Fax +1 202 408 4400

Bar and Court Admissions

  • District of Columbia
  • Virginia
  • U.S. Court of Appeals, Federal Circuit
  • U.S. Patent and Trademark Office


  • George Washington University Law School
    J.D., high honors, 2008
  • Pennsylvania State University
    B.S., Chemical Engineering, with honors, 2002

Maureen D. Queler


Maureen Queler practices all aspects of patent-related work in the chemical and pharmaceutical areas, including patent prosecution, post-grant proceedings, and litigation (U.S. district court and appellate).

Ms. Queler has an active patent prosecution practice, preparing and prosecuting U.S. patent applications on behalf of domestic and foreign clients, with an emphasis on chemical subject matter including cosmetics, pharmaceuticals, oils, and catalyst technologies. She represents clients in inter partes review (IPR) and other contested proceedings before the Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office. In addition to her practice before the PTAB, Ms. Queler has represented pharmaceutical patent holders in federal district court in litigations arising under the Hatch-Waxman Act. She has prepared and examined witnesses in court, taken and defended fact and expert depositions, and conducted and overseen the litigation discovery process.

Ms. Queler devotes time to pro bono matters where she has represented a number of veterans in appeals before the U.S. Court of Appeals for Veterans Claims.


  • Worked on the U.S. Supreme Court case Bilski v. Kappos, including assisting with drafting and researching the merits and reply briefs, as well as preparing for oral argument.
  • Former examiner at the USPTO, where she examined applications in all areas of food science and technology, 2004-2005.
  • Worked as a vaccine technology engineer for Merck Pharmaceuticals, 2003-2004.

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