During the period when a company applies for trademark registration review, it is required to submit an application for change to the State Trademark Office after the company name is changed. The Trademark Law stipulates that after the approval of a registered trademark, after the name (company name) and company address of the trademark registrant have changed, they should apply to the State Trademark Office for trademark change procedures, and there is no need for trademark registration inquiry. After the trademark is changed, the trademark ownership remains unchanged. Since September 15th, 22, when the Regulations on the Implementation of the Trademark Law came into effect, a trademark that has been applied for but has not been approved for registration may also apply to the State Trademark Office to change the name (company name) and company address of the trademark registrant. You can apply for trademark change in person in the registration hall of the State Trademark Office in Beijing. If you don't go to the registration hall of the State Trademark Office in Beijing, you should entrust the trademark agency company filed by the State Trademark Office to handle it. Enterprises applying for trademark change need to submit the following materials: 1. Submit the change certificate issued by the industrial and commercial registration authority; 2. Copy of the changed business license of the enterprise as a legal person, stamped with the official seal; 3. Trademark change application with the official seal; 4. Trademark proxy with the official seal. If applying for the change of company address, the change certificate is not required. Natural persons apply for trademark change and submit the following materials: 1. Submit the change certificate of the local police station (no change is required) 2. Copy of the changed business license of individual industrial and commercial households 3. Copy of the changed ID card 4. Submit the change certificate issued by the industrial and commercial registration authority (no change is required) 5. Apply for trademark change 6. If the trademark agent power of attorney applies for address change, it is not required to attach the change certificate. The name before change and the name after change on the certificate shall be consistent with the name before change and the name of the applicant on the application. The change of the name of the applicant for a trademark that has not been approved for registration shall also be handled in accordance with the above provisions.