Barry E. Bretschneider

Barry E. Bretschneider

T: 703.280.9086
F: 703.280.9130

Mr. Bretschneider, a registered patent attorney and recognized lawyer in Chambers USA, has a diverse practice that is concentrated on patent infringement litigation in the district courts and before the International Trade Commission (ITC), post-grant patent procedures including post-grant reviews, reexaminations and interferences, patent prosecution, patent licensing and related transactional work, and trademark litigation and prosecution. He represents U.S. and foreign corporations, and his diverse background includes working with a multitude of technologies in the electronics, semiconductor, polymer, composite material, medical device, pharmaceutical and automotive industries, among many others.
Mr. Bretschneider has been recognized as a leading lawyer by Chambers Global 2011Chambers USA (2006 to 2013), Best Lawyers In America© (2011 and 2012), IAM 250 World's Leading Patent LitigatorsThe Washingtonian magazine and Euromoney's Expert Guides. He is a member of a number of organizations, including the Federal Circuit Bar Association, the American Intellectual Property Lawyers Association (AIPLA) and the American Bar Association.


  • Chambers Global: Intellectual Property: Patent (USA) (2011 to 2014)
  • Chambers USA: Intellectual Property in Northern Virginia (2006 to 2013)
  • The Legal 500 United States (2016)
    • Recommended in Intellectual Property: Patents - Prosecution (including re-examination and post-grant proceedings)
  • Who's Who Legal: Patents (2014 to 2017)
  • IAM Patent 1000 – The World's Leading Patent Practitioners
    • National: Recommended for Post-grant Proceedings (2014 to 2016)
    • DC Metro: Recommended for Patent Prosecution (2014 to 2017)
    • DC Metro: Recognized for Patent Litigation (2017)
  • Global Law Experts: Recommended Attorney (2015)
  • The Best Lawyers In America© (2011 to Present)
    • Washington, D.C.: Litigation - Patent
    • Washington, D.C.: Patent Law
  • IAM 250 World's Leading Patent Litigators 
  • The Washingtonian
  • Euromoney's Expert Guides
  • Washington, D.C. "Super Lawyer" (2006, 2007, 2013 to 2019)

Memberships & Activities

  • Federal Circuit Bar Association
  • American Bar Association

Representative Experience

  • Defended challenges to a chemical and medical device manufacturing company's pioneer patents on technology relating to a method of DNA amplification that plays a critical role in shortening the length of time it takes to get DNA testing results – a service of particular use to crime labs. In a reexamination brought by a life sciences product company, the Board of Patent Appeals and interferences reversed all claim rejections and confirmed the patent claims, which are vital to the client's business.
  • Represented an electronics manufacturer against a multinational electronics conglomerate in two ITC trials, resulting in trial decisions confirming the client's patents.
  • Obtained a Markman ruling for a U.S. company in a patent litigation matter involving on-hold music and messaging technology. Due to the Markman ruling, the team significantly narrowed the plaintiff's claims through a series of motions for partial summary judgment, resulting in the ultimate dismissal of the action with prejudice.