Which is the competent authority for invention patent applications in Thailand?

If within 12 months before the filing date/priority date, the essence or details of the invention are maliciously disclosed, or exhibited by the inventor in an international or official exhibition, the invention does not lose its novelty.

Intellectual Property Office of the Ministry of Commerce of Thailand

English: Department of Intellectual Property, abbreviation: DIP

Website: Home (ipthailand.go.th)

Thailand Invention Patent Search: DIP (ipthailand.go.th)

• via Paris Convention : 12 months from earliest priority date.
• via Nationalization of PCT : 30 months from the earliest priority date.

10 years

20 years

no

no

no

5-8 years

The DIP conducts formality examination and substantive examination of the invention patent application. The formality examination generally takes 1-1.5 years. After the completion of the preliminary examination, the patent application will be published and enter a 90-day opposition period. The applicant can only submit a substantive examination request within 5 years after the application is published, and the examination results of other countries such as Japan, the United States, the United Kingdom and Europe need to be provided to the DIP.