After the company name is changed, a trademark change application needs to be submitted to the National Trademark Office.

Article 41 of the Trademark Law stipulates: If a registered trademark needs to change the name, address or other registration matters of the registrant, a change application must be submitted.

Article 49 of the Trademark Law stipulates: If a trademark registrant changes the registered trademark, the registrant's name, address or other registration matters on his own during the use of the registered trademark, the local industrial and commercial administration department shall order him to do so. Corrections are required within a time limit; if corrections are not made within the time limit, the Trademark Office will revoke the registered trademark.

In addition, the renewal procedures after the trademark expires will not be processed because the registrant of the trademark is the name of the old company, and after the company name is changed, the original corporate seal is no longer valid. If the company name on the new official seal is inconsistent with the name of the trademark registrant, the trademark renewal application will not be approved.