The trademark protection regime of the Republic of Korea is built upon the Korean Trademark Act, supplemented by the Act on Prevention of Unfair Competition and Protection of Trade Secrets, and administered centrally by the Korean Intellectual Property Office (KIPO). South Korea adheres to the first-to-file principle, which fundamentally distinguishes its system from common-law jurisdictions that recognise unregistered trademark rights through prior use. Foreign brand owners expanding into the Korean market must fully understand procedural thresholds, substantive examination standards, use obligations and multi-layered dispute resolution rules to avoid irreversible brand asset losses.
South Korea accepts diverse types of trademarks for registration, covering word marks, figurative marks, combined marks, three-dimensional marks, colour marks, sound marks and hologram marks. Under Article 2 of the amended Trademark Act, any perceptible sign capable of distinguishing the source of goods or services qualifies as registrable, provided it satisfies distinctiveness requirements. Nevertheless, descriptive marks, generic terms and simple geographical names cannot be registered unless the applicant can prove acquired distinctiveness formed through continuous commercial use nationwide. Unlike many Southeast Asian jurisdictions, mere advertising and online display do not automatically generate acquired distinctiveness; evidence must reflect actual sales transactions covering multiple regions within South Korea over a sustained period.
All non-resident applicants without a domestic business establishment face a mandatory procedural requirement: foreign applicants must appoint a qualified local Korean patent attorney to handle all trademark proceedings before KIPO. Direct filing by overseas entities or individuals is strictly rejected. This rule applies to national applications and Madrid Protocol international registrations designating South Korea. Priority claims under the Paris Convention are permitted within six months for goods trademarks and six months for service marks. Supporting priority documents together with certified Korean translations must be submitted within three months after filing; failure to provide translations results in automatic forfeiture of priority rights.
After formal examination, KIPO examiners conduct substantive examination covering absolute and relative refusal grounds. Absolute grounds include lack of distinctiveness and violation of public order or morality. Relative grounds mainly cover conflicts with prior registered trademarks, pending applications and well-known marks. Once an application is accepted by examiners, it will be published in the Trademark Official Gazette for a two-month opposition period, which cannot be extended upon request. Any interested third party may file opposition submissions. The opponent must set out complete factual and legal grounds within the first 30 days, and supplementary evidence can only be supplemented within the subsequent 30-day window. After the opposition period expires, no new opposition may be initiated against the published trademark application.
One of the highest-risk systems for global trademark proprietors is the three-year non-use cancellation mechanism. After trademark registration, if the mark has not been put into genuine commercial use on designated goods or services in South Korea for three consecutive years without justifiable reasons, any third party may initiate a cancellation trial before the Intellectual Property Trial and Appeal Board (IPTAB). Crucially, token use solely for maintaining registration, such as small-scale internal samples or isolated online listings without real sales, is not recognised as valid trademark use. Courts and IPTAB consistently require evidence of commercial transactions targeting Korean consumers. After cancellation, the trademark right is deemed invalid retroactively from the date the cancellation petition was filed.
South Korea provides a complete two-tier administrative appeal system for adverse decisions. If an applicant receives a final refusal decision or loses an opposition case, the first appeal channel is IPTAB within three months of receiving the ruling. Parties dissatisfied with IPTAB judgments may further institute litigation before the Patent Court within 30 days; rulings of the Patent Court can be appealed to the Supreme Court within two weeks. This hierarchical remedy procedure must be strictly followed, and claimants cannot directly bring trademark administrative disputes to district courts without exhausting administrative remedies.
The protection scope of registered trademarks includes civil remedies, administrative sanctions and criminal liability. Trademark owners can apply for preliminary and permanent injunctions, demand destruction of infringing goods and manufacturing equipment, and claim compensation for economic losses. When calculating damages, Korean courts accept three calculation standards: actual loss suffered by the right holder, illegal profits obtained by the infringer, or statutory compensation. For intentional serious infringement, the court may award enhanced compensation. In criminal aspects, intentional trademark infringement may incur imprisonment of up to five years or fines not exceeding 50 million Korean won.
Unregistered trademarks receive limited protection mainly under unfair competition legislation rather than the Trademark Act. Only well-known unregistered trademarks widely recognised among Korean consumers can block bad-faith trademark applications and launch unfair competition lawsuits. Ordinary unregistered marks without well-known status cannot exclude third-party independent registration, which highlights the necessity of proactive filing for foreign brands. The 2023 amendment of the Trademark Act expands the definition of trademark use, explicitly covering scenarios where counterfeit goods are shipped to South Korea from overseas logistics channels. This revision strengthens customs border enforcement, enabling trademark owners to apply for customs detention of imported counterfeit commodities.
Registered trademarks are valid for ten years starting from the registration date. Renewal applications can be submitted within one year before expiry, and a six-month grace period is available with additional surcharges. Renewal procedures require no substantive re-examination, but KIPO may issue inquiries if the designated goods list is overly broad. Rights transfer, licence recording and pledge registration of trademarks all require formal filing with KIPO; unrecorded exclusive licences cannot be used to oppose third-party infringers.
Brand operators frequently encounter bad-faith squatting in the Korean market. When confronting squatting registrations based on well-known marks, right holders can initiate invalidation trials. Invalidation actions against trademarks conflicting with prior well-known marks can be filed without a five-year time restriction, while ordinary relative-ground invalidation must be filed within five years after registration. This distinction is a critical tool for international brands fighting malicious cybersquatting and trademark hijacking in South Korea.
Four authoritative accessible hyperlinks:
1.IPcrossark：https://www.ipcrossark.com/en/trademark.html?cid=49
2.Official English website of Korean Intellectual Property Office: https://www.kipo.go.kr/en/main.do
3.WIPO Lex full text of Korean Trademark Act: https://wipolex.wipo.int/en/text/568794
4.ICLG Trademark Law Guide for South Korea: https://iclg.com/practice-areas/trade-marks-laws-and-regulations/korea
