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Hyung Gyu (Leo) Sun

Associate

Office: Leesburg, VA

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...not a word to describe the pure excellence and pride...

Rene K.

Biography

Hyung Gyu (Leo) Sun is an Attorney in the Leesburg 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.

Experience

SiteTools, Inc. v. Bansk Group LLC (C.D. Cal.) – Counsel for Bansk Group in a declaratory judgment and trademark cancellation action brought by an online provider of mortgage leads. Moved to dismiss the complaint on several grounds, including lack of personal jurisdiction. The court granted the motion to dismiss for lack of personal jurisdiction and the case was dismissed.
Tangle, Inc. v. Buffalo Games, LLC (N.D. Cal.) – Counsel for Buffalo Games in a trademark and copyright infringement case brought by an international toy manufacturer. Moved to dismiss the complaint on several grounds, including lack of personal jurisdiction. The court granted the motion to dismiss for lack of personal jurisdiction with leave to amend the complaint. Subsequently defended jurisdictional discovery deposition and moved to dismiss the amended complaint. Case pending before the Northern District of California.
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 settled favorably.
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. The court granted the motion to dismiss for forum non conveniens and the case was dismissed.
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.
PCRX, LLC v. PCRx Computers Inc. (TTAB) – Counsel for PCRx Computers Inc. in a trademark opposition proceeding. Successfully defended PCRx Computers by moving to dismiss the opposition. The board granted the motion and the opposition was dismissed.
Throwdown Industries, Inc. v. Iron Army, LLC (TTAB) – Counsel for Throwdown in a trademark opposition proceeding. Successfully opposed Iron Army, LLC’s application to register THROWDOWN mark in connection with nutrition supplements. The Board granted Throwdown’s motion to quash Iron Army’s Notice of Deposition, Iron Army subsequently withdrew its trademark application, and the opposition was sustained.