Effective September 1, 2017 the Thai Department of Intellectual Property will accept applications for sound trademark registration, as provided for in Ministerial Regulation No. 5 B.E. 2560 (A.D. 2017), issued under the Trademark Act B.E. 2534 (A.D. 1991)
To apply to register a sound trademark, clause 11 of the Ministerial Regulation requires applicants to submit the following items, in addition to the list of goods or services:
Applicants may also submit musical notations or a spectrogram of their sound as part of their application if they choose.
To be eligible for registration, sound trademarks must not directly represent a product’s properties, or be sounds naturally made by the product or made as part of the product’s usage or operation (e.g., the sound of cows cannot be registered as a sound for dairy products.)
Source: Tilleke & Gibbins