Mark Feldstein

Finnegan Henderson Farabow Garrett & Dunner LLP

Mark J. Feldstein, Ph.D., focuses on U.S. district court litigation, primarily concerning the enforcement of U.S. patent rights and trade secret issues, and post-grant trial proceedings at the U.S. Patent and Trademark Office (USPTO), including inter partes review (IPR) and post grant review (PGR).

Mark also maintains an active patent prosecution practice, preparing and prosecuting U.S. patent applications on behalf of domestic and foreign clients. In addition, he provides opinions and strategic guidance to clients on infringement, validity, enforceability, and clearance matters.

In Acritas StarsTM, clients have praised his extensive knowledge of patent law; depth of technical and legal expertise, and the quality of advice; and determination to get things done. Mark’s practice encompasses a range of technologies, including pharmaceuticals, biochemistry, polymers, small molecule chemistry, nanotechnology, optics, and medical and analytic devices.

His proficiency in these areas is supported by extensive research experience. Prior to his legal career, Mark conducted research in ultrafast laser spectroscopy and scanning probe microscopy analysis applied to metallic, nano-structured, and conducting polymeric systems. As a National Research Council post-doctoral associate, Mark also designed and developed optically transduced biosensors and related signal processing software for the U.S. Naval Research Laboratory.

Mark is an adjunct professor of law at Georgetown University Law Center, teaching courses in patent prosecution practice and IP management. He speaks regularly to national and international audiences of both attorneys and scientists on issues of patent strategy, prosecution, and litigation.

Mark is also an associate editor for texts published by the American Bar Association Section of Intellectual Property Law on Abbreviated New Drug Application (ANDA) litigation law and strategy, and by AIPLA/Bloomberg BNA on evidence in patent cases. Mark’s pro bono activities include military veteran representation before the U.S. Court of Appeals for Veterans Claims.

Education :

  • Georgetown University Law Center J.D., cum laude, 2001
  • University of Pennsylvania Ph.D., Physical Chemistry, 1997
  • University of Chicago M.S., Chemistry, 1992
  • George Washington University B.S., Chemistry, cum laude, 1991
  • George Washington University B.A., Philosophy, cum laude, 1991

Admissions :

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

Professional Activities :

  • American Association of Pharmaceutical Scientists (AAPS)


Rate : $$$

What types of cases Attorney Mark Feldstein & Finnegan Henderson Farabow Garrett & Dunner LLP can handle?
Finnegan Henderson Farabow Garrett & Dunner LLP can handle cases related to laws concerning Litigation, Energy Utilities & Environmental. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Finnegan Henderson Farabow Garrett & Dunner LLP located?
Finnegan Henderson Farabow Garrett & Dunner LLP is located at 901 New York Avenue, Washington, DC 20268, USA. You can reach out to Finnegan Henderson Farabow Garrett & Dunner LLP using their phone line 202 408 4092. You can also check their website or email them at [email protected].
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Finnegan Henderson Farabow Garrett & Dunner LLP
901 New York Avenue, Washington, DC 20268, USA
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