If the examiner finds no ground for rejection of a trademark application, or he considers that the rejection has been overcome by the applicant’s response (argument and/or amendment), he shall render a decision to publish the trademark application. Once a trademark application is published in the official gazette, called the “Trademark Publication Gazette,” any person may file an opposition within 2 months from the publication date. The 2 month period cannot be extended. A notice of opposition containing a brief statement on the grounds for opposition must be submitted within the 2 month period. Then, the opponent may amend, add or supplement the grounds for opposition within 30 days after the expiration of the 2 month period.
An opposition against the application can be filed by the owner of a trademark registered in the territory of a member country of a treaty to which the Republic of Korea has acceded, if both the trademark and the designated goods of the application are identical with, or similar to, those of the foreign trademark registration and if the application is filed by a person who is, or used to be, an agent or a representative of the owner of the registered trademark within 1 year prior to the filing date of the application concerned without obtaining the authorization or consent from the owner of the registered trademark.