Filing a trademark in Thailand when the mark is already in use abroad

Thailand protects a registered mark, and registration is granted to the first person to file. An earlier application for a confusingly similar mark, for related goods or services, will usually block a later one.

A mark already used abroad should be filed in Thailand before someone else files it here. The application names the goods and services, arranged in the international classes. A broad term is not accepted; the goods and services must be specifically itemized.