The name of the trademark registrant is the subject protected by the trademark law, and the address of the trademark registrant is the necessary information for the trademark management agency to carry out trademark calendar and contact. In order to effectively protect the exclusive rights of the trademark, when the name (address) of the trademark registrant ) changes, a change application should be filed with the trademark authority in a timely manner in accordance with the law, so that it can be filed and registered in the "Trademark Register". The qualifications of the trademark owner after the change remain unchanged. According to the provisions of the Trademark Law: 1. To change the name or address of the trademark registrant, the trademark registrant must apply for all registered trademarks together; 2. To apply to change the name, address or other registration matters of the trademark registrant, each application must be filed with The Trademark Office shall submit a corresponding application form for trademark change and a copy of the change certificate. Issue corresponding certificates to registrants and announce them.