O'Brien, Daniel T.

2727 North Harwood StreetDallas, TX 75201- 1515

Updated: 01/08/2014


Dan O'Brien practices intellectual property law, with a focus on patent litigation and intellectual property transactions. Dan's experience also includes patent prosecution, due diligence, and opinion work. These representations involve a variety of technologies, including vehicle telematics, computer architecture, 3D/4D seismology, backup and recovery software, encryption, and telecommunication systems.

Prior to joining Jones Day, Dan practiced law at an IP boutique firm in Chicago...


Office Info

Current Employment Position(s)

  • Associate

Practice Areas

  • Intellectual Property

Representative Cases

  • Dell defends against a patent infringement suit involving hard drive backup and restore technology , (2011)
  • Dell defends against patent infringement charges involving its network data transmission technology , (2009)
  • Dell defends against Xpoint's patent infringement claims over peer-to-peer I/O technology
  • Freescale defends infringement claims by Stragent over patents relating to CRC protocols in network processors , (2011)
  • Freescale defends patent infringement claims by Stragent involving network processors , (2011)
  • Hyundai fends off patent infringement action related to vehicle telematics , (2012)
  • Texas Instruments favorably settles patent infringement dispute with Xpoint Technologies , (2011)
  • Visa defends against patent infringement action regarding systems of transmitting encrypted data , (2011)


Bar Admissions

  • Illinois
  • Texas
  • U.S. District Court Eastern District of Texas
  • U.S. District Court Northern District of Texas
  • U.S. District Court Northern District of Illinois
  • U.S. District Court Eastern District of Michigan
  • U.S. Patent and Trademark Office


  • University of Illinois College of Law, Champaign, Illinois, 2006
    Honors: magna cum laude
  • University of Illinois at Urbana-Champaign, Illinois, 2002
    Major: Electrical Engineering

Office Information


2727 North Harwood StreetDallas, TX 75201- 1515


  • (214) 969-5100


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