Thailand trademarks are regulated by the Department of Intellectual Property (DIP) under the Ministry of Commerce. In order to register a trademark in Thailand, the mark must be distinctive and not identical or similar to any existing marks. The registration process typically takes around 12-18 months. Once a trademark is registered, it is valid for 10 years and can be renewed indefinitely for additional 10 year periods.
The registration process for a trademark in Thailand typically includes a formalities examination, a substantive examination, and publication in the Trademark Gazette. The formalities examination checks that the application meets all of the necessary requirements, such as being properly formatted and including the necessary fees. The substantive examination checks that the mark is not identical or similar to any existing marks and that it is distinctive.
After the examination, the mark will be published in the Trademark Gazette, during which time any interested party has 90 days to file an opposition to the registration. If no opposition is filed or if the opposition is unsuccessful, the registration will be granted.
It's also worth mentioning that Thailand is a member of the Madrid Protocol, which allows for the filing of a single application to protect a trademark in multiple countries, including Thailand.
However, it's important to note that Thailand has a "first to file" system, meaning that the first person to file an application for a particular mark will be granted registration, regardless of who was using the mark first. It's therefore important to act quickly if you are considering registering a trademark in Thailand.