The transfer of a registered trademark not only leads to the transfer of trademark rights between the transferor and the transferee, but also affects the interests of interested parties such as the licensee of a registered trademark and the interests of consumers. In order to ensure the legal transfer of a trademark and protect the interests of interested parties and consumers, when transferring a registered trademark, the assignor and the assignee shall sign an assignment agreement. After the transfer of a trademark, it is an illegal act that the original trademark registrant continues to use the trademark for commodities, commodity packaging or containers, commodity trading documents, or uses the trademark for commercial activities such as advertisements and exhibitions without permission. According to Article 57 of the Trademark Law, without the permission of the trademark registrant, using a trademark identical to its registered trademark on the same commodity or using a trademark similar to its registered trademark on the same commodity is an infringement of the exclusive right to use a registered trademark.
To sum up, after the trademark is transferred, it may not be used again without the permission of the trademark registrant.