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John F. Hornick
+1 202 408 4076

901 New York Avenue, NW
Washington, DC 20001-4413

+1 202 408 4000
Fax +1 202 408 4400

Bar and Court Admissions

  • District of Columbia
  • U.S. Court of Appeals, D.C. Circuit
  • U.S. Court of Appeals, First Circuit
  • U.S. Court of Appeals, Fourth Circuit
  • U.S. Court of Appeals, Ninth Circuit
  • U.S. Court of Appeals, Third Circuit
  • U.S. Supreme Court


  • Carnegie Mellon University & National Association of Corporate Directors
    CERT Certificate in Cybersecurity Oversight, 2017
  • Catholic University of America, Columbus School of Law
    J.D., 1984
  • Temple University
    B.A., Philosophy, cum laude, 1979
  • North Carolina School of Arts

John F. Hornick


John Hornick is an IP counselor and litigator with more than 30 years of experience. He counsels clients on virtually every aspect of IP law, from licensing to litigation. He has litigated close to 100 IP cases in more than 30 U.S. federal courts in 18 states, five U.S. circuit courts of appeals, the U.S. Supreme Court, the U.S. International Trade Commission (ITC), and others. Mr. Hornick has appeared before more than 100 judges, arbitrators, and mediators and has tried nearly every type of IP case. He has successfully avoided litigation for clients in hundreds of other disputes. Because of the overlap between his trade secret practice and cybersecurity, Mr. Hornick earned a CERT Certificate in Cybersecurity Oversight from Carnegie Mellon University and the National Association of Corporate Directors.

Mr. Hornick leads Finnegan's 3D Printing Working Group and authored the book 3D Printing Will Rock the World. He advises and educates clients about 3D printing and the IP issues of this rapidly developing and potentially disruptive technology, and how it may affect their businesses, both offensively and defensively. He closely follows the industry, frequently speaking and writing on 3D printing and its potential effects on IP law and the world. Recognized as a thought leader in this space, his articles have been published at; in the Journal of 3D Printing & Additive Manufacturing, for which he serves on the editorial board; and in Wired Innovation. Mr. Hornick also writes a column for 3D Printing World, which is published in English and Chinese. He was the only IP attorney selected by the National Academies to participate in the U.S. Comptroller General Forum on Additive Manufacturing (which will be the basis of a report to the U.S. Congress), and was invited by the National Association of Attorneys General to participate in its 3D printing initiative. Mr. Hornick holds a Certificate in Foundations of 3D Printing from Underwriters Laboratories Knowledge Solutions Training. Mr. Hornick also serves on the Advisory Board of Advanced Manufacturing Insight and as a juror for the International Additive Manufacturing Award.

Mr. Hornick is a principal editor and author of the U.S. section of International Intellectual Property Litigation (FT Law & Tax); a principal editor of Country Guides: Basic Information on Trademark Registration Worldwide (International Trademark Association); author-editor of the U.S. section of Copyright: World Law & Practice; and former author of Foreign Trademark Law Update. He writes a column on software licensing for The Licensing Journal, has been a contributor to World Copyright Law Report, and was a long-time member of the International Trademark Association (INTA) Publications Committee.


  • Served as lead counsel for the Winklevoss twins and Divya Narendra in a closely watched trade secret and copyright case against Facebook.
  • Litigated breach of patent license agreements for a major consumer electronics manufacturer and a leading developer of entertainment media.
  • In two trade secret cases, established new law on the burden of production for trade secret owners. His articles on this subject have been repeatedly quoted by counsel in court papers.
  • Litigated trade secret cases for a leading provider of scientific and engineering services to the U.S. government and for a developer of wireless LAN technology.
  • Litigated trademark infringement, trade dress, and domain name disputes for one of the world's largest automobile makers, and in one such case obtained the fourth highest attorneys' fees award in a trademark infringement case.
  • Handled global trademark; trade dress; and design patent, enforcement, defense; and portfolio management for one of the world’s largest car rental companies, a leading manufacturer of business jets, and a major sports organization.
  • Handled one of the early cases establishing new law on personal jurisdiction based on the use of an infringing trademark on a website.
  • Handled one of the first copyright cases involving the enforceability of the GNU General Public License and one of the early cases on copyright misuse.
  • Prepared software licensing and development programs and trade secret policies and procedures for many clients, including a major railroad, steel manufacturer, defense contractor, and retailer.
  • Handled the copyright side of the financing deals for several motion pictures.
  • Defended one of the world's leading manufacturers of camera and optics-related equipment, and obtained favorable settlements.
  • Established new law of personal jurisdiction over a patent infringement defendant.

Professional Recognition

  • AV® rated by Martindale-Hubbell.
  • Recognized as a trade secret and copyright litigator by The Legal 500 U.S.

Professional Activities

  • District of Columbia Bar
  • Bar Association of the District of Columbia
  • American Bar Association
  • Copyright Society of the U.S.A.
  • American Intellectual Property Law Association
  • International Trademark Association

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