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Hyung Gyu (Leo) Sun

Senior Associate

Office: Leesburg, VA

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Biography

Hyung Gyu (Leo) Sun is a senior associate in the Leesburg office of Dunlap Bennett & Ludwig. Leo’s practice focuses on civil litigation and intellectual property.

Leo has represented clients in various commercial disputes in court and arbitration proceedings. He has litigated intellectual property disputes before federal courts, contractual disputes before state courts and arbitral institutions, and trademark disputes 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 and governance. 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.
Guntaka v. Dataonez LLC et al. (Va. Cir. Ct.) – Counsel in a defendant-side commercial dispute where the plaintiff claimed breach of contract, wage law violations, and fraud, seeking damages in excess of $2.5 million. Prepared pretrial motions, took and defended depositions, and delivered opening statement. Case settled during trial after the parties’ opening statements.
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. The court granted the renewed motion to dismiss and the case was transferred to the Western District of New York.
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 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. Read coverage on Law360 here: Judge Tosses $203M Korean IP Litigation Funding Row.
Confidential Commercial Arbitration (JAMS) – 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.
Confidential Commercial Arbitration (LCIA) – Counsel for an affiliate of a leading computer software company that provides high-quality image solutions based on satellite utilization against an international space-to-cloud data and analytics company in several breach of contract matters. 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.
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.
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.