Barclay Damon
Barclay Damon

Douglas J. Nash

Douglas J. Nash


p: 315.425.2828

f: 315.703.7364

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Syracuse Office

Barclay Damon Tower
125 East Jefferson Street
Syracuse, New York 13202

Doug is an experienced trial lawyer and the chair of the firm’s Intellectual Property Litigation Practice Area. Doug’s practice is focused on aggressively protecting US manufacturers in the telecommunications and health care industries against the significant harm to their businesses that results from infringement of their intellectual property rights, especially their patent rights. He also spends a significant amount of time defending US companies in the same industries against attempts by their competitors to unfairly use patent litigation as a way to hinder lawful competition.

Doug’s clients are located across the nation, and, as such, he routinely represents clients in courts and administrative agencies that include the International Trade Commission and the Patent Trial and Appeal Board in places such as Arizona, Arkansas, California, Delaware, Minnesota,  New York, Texas, Washington DC, and Wisconsin. Doug’s successes have been reported on widely by various publications, such as IP Law360 and New York Magazine, and, based on nominations from his clients, he has been recognized as a Client Service All-Star by the BTI Consulting Group. Doug also has been published by the Association of Corporate Counsel in connection with his leadership on working with his clients in alternative fee arrangements to make intellectual property litigation costs more affordable and predictable.

Representative Experience

  • Lead trial counsel in winning a complete jury verdict of willful infringement of multiple patents and a $61 million enhanced damages award for the plaintiff, the patent owner and industry leader in coaxial cable connectors, against its leading competitor. 
  • Lead US trial counsel in a multi-national patent infringement dispute concerning an invention related to polymer chemistry in medical devices. 
  • Represented a leading US manufacturing company in connection with the domestic and foreign enforcement of its extensive patent portfolio. 
  • Defended a Global 500 company against patent infringement claims brought in the Eastern District of Texas concerning processes used to manufacture pharmaceuticals. 
  • Defended a leading medical products company against patent infringement claims brought in the Southern District of New York concerning a modified otoscope design. 
  • Defended a manufacturing company against patent infringement claims brought in the Central District of California concerning metal alloys used in the manufacture of DVDs. 
  • Represented a telecommunications company in enforcing patent and trade dress rights against a competitor in litigation brought in the District of Minnesota. 
  • Defended a manufacturer of HID lamps and obtained dismissal of patent infringement claims brought in the Southern District of Ohio. 
  • Represented munitions manufacturer in an appeal before the US Court of Appeals for the Federal Circuit in connection with the enforcement of some of its patents against a competitor.

Practice Areas


  • Boston College Law School, J.D., cum laude, Boston College Law Review, 1996
  • University of Rochester, B.A., cum laude, 1993

Admitted To Practice

  • New York, 2002
  • Massachusetts, 1996
  • U.S. District Court, Northern District of New York
  • U.S. District Court, District of Massachusetts
  • U.S. District Court, District of Vermont
  • U.S. District Court, Western District of New York
  • U.S. Supreme Court
  • U.S. Court of Appeals, Federal Circuit
  • U.S. District Court, Southern District of New York
  • U.S. District Court, Western District of Wisconsin

Memberships & Affiliations

  • New York State Bar Association
  • Northern District of New York Federal Court Bar Association
  • Innovation American Inn of Court, Member

Speaking & Publications

  • Quoted, “Corning Optical Facing $61 Million Infringement Award,” The Daily Record, March 23, 2018
  • “Barclay Damon: Federal Appeals Court Rules in Favor of Dewitt Firm in Infringement Case,” Central New York Business Journal, March 27, 2018
  • “Litigation Investment: A New Approach to Law Firm Engagement”, Association of Corporate Counsel Docket
  • “Corning Hit With Enhanced Damages in NY Patent Case”, New York Law Journal, November 9, 2016
  • “Top New York Verdicts of 2015” Case Mention, New York Magazine


  • The Best Lawyers in America®: Commercial Litigation, 2013-2019

Prior Experience

  • Hiscock & Barclay, LLP, Partner
  • Hale and Dorr LLP (now WilmerHale), Partner
  • Middlesex County District Attorney’s Office, Special Assistant District Attorney
  • U.S. Army Corps of Engineers, Legal Instruments Examiner