Legal analysis: Trademark transfer requires going to the Trademark Office for formalities. The process includes: application for acceptance, review, announcement, issuance of transfer certificate. 1. The buyer and seller sign the "Trademark Transfer Contract/Agreement"; 2. The trademark holder handles trademark notarization, which is usually completed within 3-5 working days, and obtains the "Trademark Declaration Notarization Certificate" and so on.

Legal basis: "Trademark Law of the People's Republic of China"

Article 23 If a registered trademark needs to change the name, address or other registration matters of the registrant, it shall File a change request.

Article 39 When transferring a registered trademark, the transferor and the transferee shall sign a transfer agreement and submit applications to the Trademark Office at the same time. The transferee shall ensure the quality of the goods using the registered trademark. After the transfer of a registered trademark is approved, it will be announced. The assignee shall enjoy the exclusive right to use the trademark from the date of announcement.