A trademark is a mark used to distinguish one business's goods or services from another's, under Thailand's Trademark Act B.E. 2534 and its amendments. The law recognizes 4 types: trademarks, service marks, certification marks, and collective marks. Both a business name and a logo can be filed as trademarks - the mark must be distinctive, not identical or confusingly similar to an already-registered mark, and not contrary to law or public order.
What Is a Trademark? Everything You Need to Know
- Protected for 10 years from the filing date, renewable indefinitely for 10-year terms
- The mark must be distinctive, and not identical or confusingly similar to a mark already registered in the same class
- A similarity search before filing is recommended to reduce the risk of refusal or opposition
- A business name and a logo can each be filed as separate trademarks - you don't have to choose only one
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Trademark Articles
Trademark
What Should You Search Before Filing a Trademark in Thailand?
Why searching before filing helps, identical vs. confusingly similar marks, and the limits of a preliminary search.
Trademark
How to Choose Trademark Classes and Goods or Services in Thailand
What classes are, how they differ from the goods/services specification, and how to choose them for your business.
Trademark
What to Do When a Trademark Is Refused
Why do trademarks get refused, can you appeal, and what's the deadline and fee?
Trademark
Should You Register the Brand Name or Logo First?
Can you file them separately? What should you register first on a limited budget, and what happens when your logo changes later?
Trademark
Trademark Infringement: What to Do First
Think your trademark is being infringed? How to document it, the difference between counterfeiting and imitation, and what the litigation process looks like.
Trademark
Trademark Renewal in Thailand: Process and Deadlines
When is renewal due, can you file before or after expiration, how much does it cost, and what happens if you miss the deadline?
Trademark
What Is a Trademark, and Why Register One?
What a trademark means, why you should register one, and what it protects.
Trademark
How Long Does Trademark Registration Take? Fees and Documents for 2026
A summary of the process, timeline, fees, and documents needed for trademark registration.
FAQ
Frequently Asked Questions
How many times can a trademark be renewed?
It can be renewed an unlimited number of times, for 10-year terms each. See the full process, deadlines, and fees in Trademark Renewal in Thailand: Process and Deadlines.
How are trademark government fees calculated?
Fees are split into a filing fee and a registration fee, charged per goods/services item (up to 5 items) or a flat per-class rate (6 or more items). See the full fee table on the Trademark Registration page.
What should I do if my trademark is refused?
You can appeal the registrar's order to the Trademark Board, or file a new application with the problem fixed. See common reasons, deadlines, and the full appeal fee at What to Do When a Trademark Is Refused.
What should I do if I get an Office Action on a trademark application?
An Office Action isn't always a refusal, and the response deadline needs to be checked against the actual notice you received. See What Is an Office Action? How It Differs From a Refusal for details.
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