Trademark registration in Thailand

A company name is registered with the Department of Business Development (DBD) and identifies your legal entity. A trademark is registered with the Department of Intellectual Property (DIP) and protects your brand mark: the name, logo, or other distinctive sign used on goods or services. DBD registration does not prevent a competitor from using your name on their products. Only DIP trademark registration does.

It depends on the DIP and on whether anyone opposes your mark. Your filing date, and the first-to-file priority that comes with it, is secured when we file your complete documents. The DIP then examines the application, may raise an office action, and publishes the mark for opposition; an opposition makes the process longer. Protection then runs for 10 years from the filing date.

Yes. Under the Trademark Act B.E. 2534, anyone who believes a pending mark would harm them can file an opposition within 60 days after it is published in the Trademark Gazette. Registration is then on hold while both parties submit evidence and arguments to the DIP. Through the IR Global network, Narai Partners can coordinate oppositions in several countries at the same time.

The DIP first issues an office action explaining its objection, most often similarity to an earlier mark (Section 13) or lack of distinctiveness (Section 7). You have 60 days from receiving the order to respond or to appeal to the Board of Trademarks. You can narrow the goods or services, submit evidence that the mark has become distinctive through use, or argue that the marks are different. If the examiner still refuses, you can appeal to the Trademark Board and then to the Intellectual Property and International Trade Court. The DIP filing fee is not refunded, whatever the outcome.

Not every class it might use, but every class it actually needs. Protection in Thailand is class-specific under the Nice Classification (13th edition, in use since 1 January 2026). A Class 25 (clothing) registration does not protect your brand in Class 35 (retail services) or Class 43 (restaurant services). Most brands need 1–3 classes; companies with a range of brands may need 5–10. We set the class list in the first consultation and recommend only the classes that matter commercially, so you do not pay for filings you do not need.

Yes. There is no foreign-ownership limit on Thai trademarks: a foreign individual or a company incorporated abroad can own a Thai trademark outright. A foreign applicant without a Thai address must appoint a Thai trademark agent to file on its behalf. Narai Partners acts as your local agent under a power of attorney, which you sign and have notarized in your home country.

Under Section 13 of the Trademark Act, the DIP compares how marks sound, including across Latin and Thai scripts. A mark that looks different in English can sound identical once written in Thai, and the DIP has refused registrations on that basis. Catching this takes Thai-language trademark expertise: English-only searches and the DIP's online search tool miss these conflicts. It is the step most often missed in self-filed applications and filings managed from abroad.

Narai Partners is a member of IR Global, a professional services network that law firms use to coordinate trademark filings, oppositions, and enforcement across 165+ jurisdictions. For a brand with international plans, that is the difference between filing one mark in Thailand and managing a consistent portfolio abroad. As part of Plizz Group, Narai Partners also works with the Plizz teams handling your company structure, accounting, and visas, so one group is accountable for your whole back office.