the procedure for trademark change is as follows: when the name or address of a trademark registrant changes, but not when the exclusive right to use a trademark is transferred due to inheritance, enterprise merger, merger or restructuring, an application for change shall be filed with the trademark office. After the application for change is submitted, the Trademark Office will accept the application for change that meets the acceptance conditions. After the application for change is approved, the Trademark Office will issue a certificate of change to the applicant. If the registered name or address changes, but the registrant continues to use the registered trademark without going through the change formalities in time, then the use of the registered trademark constitutes an act of changing the registered name, address or other registered items of the registered trademark by itself, and at the same time, it will affect the renewal, or be revoked by others for three years without using it, resulting in the loss of trademark rights.