Choon Jin Oh

Choon Jin Oh


Lee & Ko

South Korea

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



E-mail Address:

Choon Jin Oh

Areas of Expertise

Patents, Trademarks, Litigation


Choong Jin Oh is a senior partner at Lee & Ko’s IP practice group. He is recognised as one of the leading IP trial lawyers in Korea, and is highly regarded for his expertise and extensive experience in assisting clients with a broad range of IP matters.

His practice covers all areas of IP litigation, including patents, copyright (PC and mobile games), trademarks, design, trade secrets, unfair competition and in-service invention.

Having reviewed numerous patent and trademark cases on the bench, he is particularly well experienced in patent, trademark and design litigations in various venues, including prosecution matters before the Korean Intellectual Property Office; invalidation, cancellation and scope confirmation trials before the Industrial Property Tribunal and the Patent Court; and infringement actions before the judicial courts. He joined Lee & Ko in 2010 after serving on the bench for 13 years. Prior to joining Lee & Ko, Mr Oh served as a judge at the Seoul District Court, the Seoul High Court and the Patent Court (which handles the greatest number of patent and trademark cases in Korea).

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