Sun Chang

Sun Chang


Lee & Ko

South Korea

Hanjin Building, 63 Namdaemun-ro, Jung-gu
Seoul 04532
South Korea



E-mail Address:

Sun Chang

Areas of Expertise

Trademarks, Enforcement, Litigation


Sun Chang is well-respected in the Korean legal community for his expertise in intellectual property licensing and trade secret protection. While he focuses on all aspects of intellectual property law, Mr. Chang is particularly wellrespected in the Korean legal community for his expertise in patent litigation, trade secrets protection, franchising and IP licensing.

Since beginning his practice in 2000, Mr. Chang has advised and represented numerous high-profile foreign and domestic clients in patent disputes in the context of infringement and invalidation actions in wide spectrum of patents covering LCD, drillship, LNG carrier, and telecommunications technologies.

Mr. Chang has advised clients on protection of trade secrets and successfully acted on various clients before the Korean courts in some of the largest and precedentsetting trade secrets misappropriation disputes involving electrical steel manufacturing technology between large steel manufacturers, and also, manufacturing technology of polysilicon, a key material in solar power systems. In addition to his dynamic litigation practice, Mr. Chang have acted as counsel to many well-known Korean in establishing policies and guidelines for the protection of trade secrets.

In addition, Mr. Chang is an expert in IP licensing and is recognized to have unrivaled experience in franchising in the Korean legal community. He has worked with high-profile domestic and international franchisors in every phase franchising across every industry segments, including international hotels, fast-food restaurants, and fashion and apparel retailers. Mr. Chang also advises foreign franchisors on anti-competition compliance and other regulatory matters before the Korea Fair Trade Commission.

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