During the period when the 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 are 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 the implementation of the Regulations on the Implementation of the Trademark Law on September 15, 2002, a trademark that has applied for registration 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 Beijing Registration Hall of the State Trademark Office, you should entrust a trademark agency for filing with the State Trademark Office. Enterprises applying for trademark change need to submit the following materials: 1. Submit the certificate of change issued by the industrial and commercial registration authority. 2. A copy of the changed business license of the enterprise as a legal person, with the official seal affixed. 3. Application for trademark change with official seal. 4. If the power of attorney for trademark agency with official seal applies for changing the company address, it is not necessary to attach a certificate of change. Natural persons apply for trademark change and submit the following materials: 1, submit the certificate of change 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 certificate of change issued by the industrial and commercial registration authority (no change is required), 5. Apply for trademark change, 6. The power of attorney for trademark agency does not need to attach the certificate of change. 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. Where a trademark applicant who has not been approved for registration changes its name, it shall also be handled in accordance with the above provisions.