Protecting Your Brand: Trademark Basics in Thailand

In Thailand, trademark law follows a "First to File" system, not "First to Use." This means that even if you have used your logo for ten years globally, someone else could potentially register it in Thailand today and legally prevent you from using it.

 

The DIP Process

Trademarks are managed by the Department of Intellectual Property (DIP).

• The Search: Before filing, a comprehensive search of the Thai database is vital to ensure your name or logo isn't "confusingly similar" to an existing one.
• The Application: You must categorize your brand into specific "Classes" (e.g., Class 25 for clothing, Class 42 for IT services).
• The Timeline: Registration typically takes 9-18 months, but your protection begins from the date of filing.

 

Common Filing Mistakes

• Filing too narrow: Protecting only the logo, while forgetting the brand name in both English and Thai script. A competitor can register the Thai-language version of your brand and quietly claim the local market.
• Choosing the wrong classes: Filing in the cheapest single class instead of every class where you actually operate or plan to expand. Covering the right classes from the start is far cheaper than opposing someone else's later filing.
• No follow-up: An application that goes unanswered can lapse. Give your local representative clear authority to respond to office actions quickly.

 

International Coverage

A Thai registration stops at the border. Thailand participates in the Madrid System, which lets an international application be extended to cover Thailand alongside other member countries—a practical route for brands scaling across Southeast Asia. Registrations stay in force as long as they are renewed on schedule, so set a renewal calendar from the day you file.

 

Why It Matters

A registered trademark is an asset. It can be used as collateral for loans, it can be licensed for franchise fees, and most importantly, it gives you the power to ask the Royal Thai Police to seize counterfeit goods or take down infringing websites. Don't leave your reputation to chance—file early.

 

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