Andy Ehmke


Education and Clerkships

J.D., University of Dayton, 1999

B.S., Computer Science, Michigan State University, 1996

Bar Admissions


U.S. Patent and Trademark Office


Andy Ehmke is one of the lead partners in Haynes and Boone’s Patent Trials Practice Group, and focuses his practice on inter partes review and covered business method proceedings on behalf of technology companies. Prior to joining Haynes and Boone, Andy obtained a degree in computer science, worked as an information systems manager and consultant, and wrote software for hand-held computing devices. His technical areas of expertise include software, networking, cloud-based computing and services, and computing hardware.

Andy's experience includes:

  • Representing clients in inter partes review and covered business method proceedings before the Patent Trial and Appeal Board.
  • Developing patent defense strategies involving the interplay of patent opinions, licensing, litigation, and patent trials.
  • Developing intellectual property portfolios for technology companies.
  • Preparing and negotiation technology, software, patent, and know-how licenses.

Professional and Community Activities

  • State Bar of Texas, Intellectual Property Law Section
  • American Bar Association
  • Dallas Bar Association


Managing Intellectual Property magazine

Managing IP Magazine Praises Haynes and Boone IP Practice and Lawyers

Six Haynes and Boone, LLP partners have been named IP Stars, and the Intellectual Property Department has been voted to the top Texas tier in the IP Stars ranking by Managing Intellectual Property magazine. The magazine also ranked the firm nationally for its litigation work at the USPTO’s Patent Trial and Appeal Board (PTAB).

Published by Euromoney Institutional Investor PLC in July 2015

Patent Trials

Firms Claim Bragging Rights in New Field of Patent Litigation

Firms Claim Bragging Rights in New Field of Patent Litigation

If there really is a death squad for patents, it may not be found at the Patent Trial and Appeal Board. A more likely location is the Richardson, Texas, office of David O’Dell, chairman of Haynes and Boone’s patent trials practice group...

Selected Speeches and Publications

  • “Inter Partes Review Proceedings,” Co-Author, State Bar of Texas Annual Meeting, June 18-19, 2015
  • Inter Partes Review in Patent Disputes," Corporate Disputes Magazine, July-September, 2014. 
  • “Cyber Security: Protecting Client Confidential Information," Co-Presenter, 31st Annual Advanced Business Bankruptcy Course, Texas State Bar, Houston, TX, February 20, 2014. 
  • “Federal Circuit Appeals From the PTAB: A New Game or Just the Same Old Practice," Journal of the Patent & Trademark Office Society, November 22, 2013. 
  • “IPRs and CBMs: Lessons Learned (So Far),” 51st Annual Conference on Intellectual Property Law, November 11-12, 2013.
  • “America Invents Act: A Shift in Leverage?” 12th Annual Advanced In-House Counsel Course, Aug. 1-2, 2013.
  • “Implications of the America Invents Act,” UT School of Law 26th Annual Technology Law Conference, May 23-24, 2013.
  • Selected as an IP Star in the inaugural IP Stars ranking by Managing Intellectual Property Magazine, 2013. 
  • “Federal Circuit Appeals From the PTAB: A New Game or Just the Same Old Practice?" co-author, Haynes and Boone White Paper, February 1, 2013. 
  • Speaker, UT School of Law 25th Annual Technology Law Conference, "Five Top Takeaways of the America Invents Act for Technology and Business Lawyers," Austin, TX, May 24-25, 2012. 
  • Author, "Intellectual Property Protection for the Cloud," April 9, 2012. 
  • Co-Author, "Lipstick on a Pig—A Claim's Preamble Does Not Confer Patentability on an Otherwise Unpatentable Process," January 9, 2012. 
  • Co-Author, "Qimonda's Impact on Patent Licenses When a Licensor Goes Bankrupt in a Foreign Land," January 9, 2012. 
  • Co-Author, "Weathering the Storm: Qimonda, Patent Licenses and § 365(n)," November 8, 2011. 
  • Quoted in, "The Story Behind S.978, the Controversial Streaming Bill," Giant Bomb News, July 15, 2011. 
  • Quoted in, "PSN Hacked: What Sony's Security Breach Means for You (And What Comes Next)," Giant Bomb News, April 27, 2011. 
  • Contributor, with Kendyl Hanks and Mark Trachtenberg, "Annual Review of Litigation, Chapter 3: Appellate Practice," American Bar Association, Section of Business Law, April 2011. 
  • Speaker, 2011 Game::Business::Law International Summit on the Law of Business of Video Games, "Privacy: Problems and Solutions," Dallas, TX, January 26-27, 2011. 
  • Editor of the video game law blog Lawyers in a Gamer's World (
  • Moderator, 2010 Game::Business:Law, International Summit on the Law and Business of Video Games, "Legal Issues in Digital Distribution," March 16, 2010. 
  • Co-Author, "Innovation Fee: Surcharge on U.S. Patent & Trademark Protection," February 5, 2010.

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