How to Register a Trademark in Korea as a Foreign Business

If you sell a product in Korea under a brand you haven't registered, someone else can register that name first, and Korean law will usually side with them. Trademark rights in Korea are granted to whoever files first, not whoever used the name first. For a foreign founder or online seller, that makes registration one of the cheapest forms of protection you can buy.

Here is how the process works, who can file, and what to check before you apply.

The Quick Answer: How Registration Works

You file an application with the Korean Intellectual Property Office (KIPO), choose the product and service classes you want covered, and wait for examination. If the examiner approves it, the mark is published for a two-month opposition period, and after that you pay the registration fee. Once registered, protection generally lasts ten years and can be renewed in ten-year terms.

Examination commonly takes close to a year, though expedited examination is available in some situations, such as when you are already using the mark commercially or someone is copying it.

Who Can File, and Do You Need an Attorney?

This is the first thing foreign applicants ask. The rule is straightforward:

• Applicants with no address or place of business in Korea generally must file through a Korean patent attorney (변리사).
• Residents and registered Korean businesses can usually file on their own, though an attorney is still worth considering for anything beyond a simple word mark.
• Applicants who already hold a registration abroad can sometimes use the international Madrid system and designate Korea, which Korea participates in.

Official fees are charged per class and are modest. Attorney fees are normally the larger cost, so ask for a quote that separates the two.

Step-by-Step: Before You File

1. Search first. KIPO's public database (KIPRIS) lets you check for identical or similar marks. Check both the English spelling and the likely Korean pronunciation, because Korean examiners compare sound and appearance, not only spelling.
2. Decide which classes you need. Trademarks are filed by class, such as clothing, cosmetics, food, software, or retail services. Filing in too few classes leaves gaps, while filing in too many raises the bill.
3. Decide on the form of the mark. A word mark gives broader protection than a logo with a specific design. Many sellers file the name and the logo separately.
4. Consider a Korean version. If customers will say or write your brand in Hangul, a transliteration is worth registering too. Otherwise a copycat can register the Korean rendering of your name.
5. File and keep records. Save the filing receipt, since it establishes your priority date.

What Examiners Commonly Reject

Applications often fail for a few predictable reasons:

• The mark is too generic or merely describes the product
• It is too similar to an existing mark in the same or a related class
• It is a common surname, a geographic name, or a basic shape without distinguishing features
• It resembles a well-known mark or a national symbol

If your application is rejected, you usually receive a notice and a chance to respond. The deadline for responding is short, so do not let the notice sit.

After Registration

Registration is not the end of the work:

• Use the mark. A registration that goes unused for three years can be challenged for cancellation.
• Use it as registered. Changing the design a lot can weaken your position.
• Watch for copycats. Marketplace sellers sometimes register a foreign brand's name to block the real owner, which is why early filing matters.
• Mark your renewal date. Missing the ten-year renewal window can cost you the registration.

Common Mistakes

• Waiting until the product is selling well. By then a squatter may already have filed.
• Skipping the clearance search. A rejected application still costs time and fees.
• Registering only the English name. Korean customers may know you by the Hangul version.
• Choosing too few classes. Related products may be left unprotected.
• Assuming your home registration covers Korea. Trademark rights are territorial.

Quick Summary

• Korea follows a first-to-file system, so registering a trademark early matters more than using a name first.
• Foreign applicants without a Korean address generally need a Korean patent attorney, and registration lasts ten years with renewals.
• Search KIPRIS before filing, choose your classes carefully, and consider registering a Hangul version of the name.
• Use the registered mark, since unused registrations can be cancelled after three years.