Hyung Gyu (Leo) Sun

Phone: 571-257-4142

Fax: 855-226-8791

Email: hsun@dbllawyers.com

Office: Richmond VA

Practice Areas
  • Litigation and Disputes
  • Intellectual Property

Hyung Gyu (Leo) Sun


Hyung Gyu (Leo) Sun is an attorney in the Richmond office of Dunlap Bennett & Ludwig. Leo’s practice focuses on civil litigation and intellectual property.

Leo has represented clients in commercial disputes in state court proceedings and arbitrations. He has litigated breach of contract and intellectual property disputes in federal district courts in the United States, and trademark disputes in opposition and cancellation proceedings before the Trademark Trial and Appeal Board of the U.S. Patent and Trademark Office. He also advises clients on all aspects of the branding process, including trademark prosecution, licensing, and enforcement, as well as limited aspects of the corporate formation.

Prior to joining the firm, Leo worked for a start-up company and an intellectual property law firm in Korea. In addition to his law degree, he received a Master’s degree in intellectual property management from a Korean educational institution.

  • JD, Syracuse University College of Law, 2017
  • MSL, Northwestern University School of Law, 2014
  • MA, Korea Advanced Institute of Science and Technology, 2014
  • BA, College of William and Mary, 2011
  • Virginia
  • District of Columbia
  • U.S. District Court Eastern District of Virginia
  • U.S. District Court District of Columbia
  • U.S District Court Eastern District of Wisconsin
  • Titan Title, LLC v. Titan Title Group LLC (D.D.C) Counsel for Titan Title, LLC in a trademark case alleging trademark infringement, false designation of origin, and unfair competition related to unauthorized usage of Titan Title’s trademark. Case pending in the District Court for D.C.
  • Korea Advanced Institute of Science & Technology v. KIP Co. Ltd. et al (E.D. Wis.) Counsel for KIP, KIPB, P&IB, and the CEO of P&IB in a breach of contract and fiduciary duty case brought by a South Korean national research university seeking damages arising out of the 2012 and 2019 agreements between the university and KIP and between the university and P&IB. Moved to dismiss the complaint on several grounds, including forum non conveniens. Motions to dismiss pending in the Eastern District of Wisconsin.
  • Confidential JAMS Arbitration (JAMS Cal.) Counsel for patent monetization companies against a law firm seeking over $28 million in damages. Plaintiff alleged it is entitled to a contingency fee payment concerning the patent litigation matter in which it partially represented one of the companies. Case settled favorably.
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