Areas of Practice
  • French
  • The George Washington University School of Law, J.D., 1968
  • Purdue University, B.S.Ch.E., 1965
Bar & Court Admissions
  • District of Columbia
  • New York
  • Virginia
  • US Patent and Trademark Office

Roger W. Parkhurst

1330 Connecticut Avenue, NW
Washington DC 20036
TEL: +1 202 429 6420
FAX: +1 202 429 3902

Roger W. Parkhurst is a partner in Steptoe's Washington office, where he is a member of the Intellectual Property Group, concentrating on patent, trademark, trade dress, and unfair competition litigation.

For over 35 years, Mr. Parkhurst has litigated a variety of intellectual property disputes, including patent, trademark, copyright, and trade dress infringement allegations, and patent/antitrust claims.  Mr. Parkhurst also has successfully litigated important inter partes reviews and patent interferences before the Patent Trial and Appeal Board, and trademark opposition/cancellation proceedings before the Trademark Trial and Appeal Board, in the USPTO.

Mr. Parkhurst has advised an array of enterprises on policies and procedures for identifying, evaluating, and protecting their intellectual property, and has written hundreds of patent infringement/validity opinions.

Mr. Parkhurst is recognized by his peers as a leading member of the intellectual property bar. He was elected president of the American Intellectual Property Association for the 2001-2002 term.  Mr. Parkhurst has been selected by his peers continuously since 2001 for inclusion in the Patent Law section of the International Who’s Who of Business Lawyers.  He also has acted as an expert witness in patent/antitrust cases and patent infringement cases.  He is frequently called upon to speak about topics relating to intellectual property, and presented mock Markman hearings, closing arguments, and cross-examinations of experts at PLI in New York, annually 2000-2005.

Mr. Parkhurst is admitted to practice before the US Supreme Court, the US Courts of Appeals for the Federal, Third, and Fourth Circuits, and in the US District Courts for the District of Columbia, Eastern and Western Districts of Virginia, and other US District courts.


  • Ranked, IAM Patent 1000, Luminary:  DC Metro Area, 2014-2016
  • Ranked, IAM Patent 1000, Litigation:  DC Metro Area, 2013
  • Who's Who Legal (2005-2016), Patents
  • The International Who's Who of Patent Lawyers (2005 - 2013); recognized in 2007 as an "authority" on patent litigation and as a "very knowledgeable and prominent member of the intellectual property bar.”
  • Euromoney's Expert Guide to the World's Leading Patent Law Practitioners (2010-2013)
  • Fellow, American Intellectual Property Law Association 

Select News & Events

Selected Publications

Professional Affiliations

  • American Intellectual Property Law Association; President 2001-2002
  • Federal Circuit Bar Association