Antigone Peyton, Founder and CEO

Antigone’s practice focuses on intellectual property litigation and strategic client counseling relating to patents, trademarks, copyrights, unfair competition, DMCA violations, and social media issues. She has acted as lead trial counsel in civil lawsuits across the United States and has been recognized among the Virginia Legal Elite for her work involving intellectual property law.

Antigone’s clients range from technology start-ups to international corporations. Antigone has successfully protected companies involved in billion-dollar intellectual property litigation and has experience with technologies that range from pharmaceuticals and medical devices to Internet, software, and aerospace technologies and products that include consumer goods and apparel. She also has significant experience involving patent and trademark prosecution and litigation involving copyright, trademark, unfair competition, technology transfer, antitrust, and trade secret issues.

Having worked for both a trial and an appellate judge in intellectual property-focused courts, Antigone brings an insider’s practical perspective to her litigation and client counseling practice. Antigone also trains other attorneys, law students, and companies on legal issues and strategies relating to emerging technologies, e-discovery, social media, cloud computing, and international data transfer and privacy restrictions.

Before she founded Cloudigy Law, Antigone was a litigator at Finnegan, Henderson, Farabow, Garrett & Dunner LLP, in Washington, DC and managed the firm’s electronic litigation working group on e-discovery. Prior to law school, Antigone conducted scientific research involving clinical and pre-clinical biophysics and magnetic resonance studies at a large university medical center. This experience taught her the importance of business interests and needs when crafting legal solutions—a perspective often missing in the legal field.

She does much more than legal work, though. Antigone is an avid fruit and vegetable gardener and enjoys growing heirloom tomatoes in the summer.

Practice Areas

  • Patents
  • Copyrights
  • Trademarks
  • Trade Secrets
  • Unfair Competition
  • Internet and Social Media Law
  • Civil Litigation

Representative Experiences

  • Offensive and defensive representation in intellectual property litigations alleging between $20 million and $4 billion in damages.
  • Represented retail and e-commerce company in trademark infringement litigation involving apparel and accessories.
  • Represented Ferring B.V. at the Supreme Court in a case involving a patent covering hormone deficiency treatment.
  • Represented a company in a copyright and trade secret dispute involving a software program.
  • Represented Netscape in a patent infringement suit involving Web cookies technology.
  • Defended Eli Lilly in a suit filed by Pfizer related to the ED drug Cialis®.
  • Conducted an analysis of a biologic patent portfolio for a large pharmaceutical company.
  • Represented Abbott in a suit involving a patent covering assays used in pregnancy tests.
  • Represented United Technologies Corporation in a patent suit involving jet engine technologies.
  • Represented Aventis in a patent suit involving a biologic hemophilia product, Advate®.
  • Provided strategic patent and trademark counseling to luxury bag company.
  • Patent Prosecution – drafted and prosecuted patent applications in subject areas including pharmaceutical, chemical, business method, and software patents.

Professional Activities

  • ABA TechShow, Advisory Board
  • American Bar Association, Law Practice Management Section
  • American Intellectual Property Law Association
  • Federal Circuit Bar Association
  • Federal Circuit Historical Society
  • International Legal Technical Standards Organization (ILTSO), Advisory Board
  • National Association of Professional Women
  • The Sedona Conference® (member of Working Groups 1 and 6)

Recent Speaking Engagements

Legal Publications

  • Coauthor, “Trial Lawyers Tackle Twitter,” ABA Law Practice Magazine (April 2013)
  • Coauthor, “Social Media War Stories from Litigation,” ABA Law Practice Today (June 2012)
  • Coauthor, “2011 Trademark Law Decisions of the Federal Circuit,” 61 Am. U. L. Rev. 1151 (May 2012)
  • “Expert Blogs and Tweets: Are They Expert Publications?” Intellectual Property Today (Aug. 2010)
  • Coauthor, “On the Horizon: A New Federal Circuit,” The Federal Circuit Bar Journal (June 2010)
  • Coauthor, “On The Horizon: A New Federal Circuit—Part II,” Law 360 (Jan. 27, 2010)
  • Coauthor, “On The Horizon: A New Federal Circuit—Part I,” Law 360 (Jan. 20, 2010)
  • “Inventorship and the Inequitable Conduct Defense: PerSeptive Biosystems, Inc. v. Pharmacia Biotech, Inc.,” The Federal Circuit Bar Journal (2002)

Scientific Publications

  • Coauthor, “Diagnostic Testing Fails the Test,” Nature (2002)
  • Coauthor, “In Vivo, In Utero Microscopic Magnetic Resonance Imaging: Application in a Rat Model of Diaphragmatic Hernia,” 44 Magnetic Resonance Medicine 331 (Aug. 2000)
  • “Gene Patenting,” Remarks Before the Secretary’s Advisory Committee on Genetic Testing by Dr. Merz (SACGT) (June 2000)
  • Coauthor, “Sodium Visibility and Quantitation in Intact Bovine Articular Cartilage Using High Field 23Na MRI and MRS,” 142 J. Magnetic Resonance 24 (Jan. 2000)

Editorial Positions

  • Senior contributing editor to The Sedona Conference® Commentary on Inactive Information Sources (published in 2009)
  • Served as the Federal Circuit Bar Journal editor-in-chief (2001-2002) and associate editor (2003-2009)

Bar & Court Admissions

  • District of Columbia
  • Virginia
  • U.S. District Court, E.D. Virginia
  • U.S. Court of Appeals, Federal Circuit
  • U.S. Court of Appeals, Fourth Circuit
  • U.S. Supreme Court
  • U.S. Patent and Trademark Office


  • George Mason University School of Law
    J.D., Intellectual Property Track
  • University of Pennsylvania
    M.B.E, Bioethics
  • College of William & Mary
    B.S., Chemistry

Judicial Clerkships & Internships

Antigone worked for the Honorable Kimberly Moore at the U.S. Court of Appeals for the Federal Circuit and former Chief Administrative Law Judge Paul Luckern at the U.S. International Trade Commission.