A trademark registrant may authorize others to use its registered trademark by signing a trademark license contract. The licensor shall supervise the quality of the goods in which the licensee uses its registered trademark. The licensee shall guarantee the quality of the goods using the registered trademark.

Where a registered trademark of another person is used with permission, the name of the licensee and the place of origin of the goods must be marked on the goods using the registered trademark.

A trademark licensing contract shall be reported to the Trademark Office for the record.

This shows that unregistered trademarks cannot be licensed to others, and transfer is of course possible.