If you originally registered with the company name before the company change, you must also handle the trademark change, that is, the "trademark registrant name change" business after the company name change. The name of the registrant of the trademark registration certificate must be consistent with the name of the company you actually operate, otherwise it will bring you a lot of inconvenience. For example, if the trademark is not changed, the trademark will not be renewed when it expires; It will also bring a lot of inconvenience to your future business. There are two ways to apply for changing the name, address or other registered items of a trademark registrant: (1) entrusting a trademark agency recognized by the state to handle it. (2) The applicant goes directly to the trademark registration hall of the Trademark Office. Three. There are four formats of change documents: application for change of name/address of trademark applicant/registrant, application for deletion of goods/services, application for change of trademark agent and application for correction of trademark application/registered items. The applicant should fill in the corresponding application form according to the specific matters handled: 1. Where it is necessary to change the name or address, an Application Form for Change of Name/Address of Trademark Applicant/Registrant shall be filled in. If a trademark registrant or applicant applies for changing its name and address at the same time, it is enough to fill in an application form; 2. If it is necessary to delete the registered trademark or the goods or services in the registration application, an application form for deleting the goods/services shall be filled in, but the goods or services cannot be restricted or modified; 3. If a trademark agent needs to be replaced, an Application Form for Trademark Agent Replacement shall be filled out; 4. If it is found that there are errors in the registration documents or application documents that need to be corrected, an Application for Correction of Trademark Application/Registration Items shall be filled out. The errors mentioned here are limited to individual textual errors in the application documents. Four. Three steps to apply (1) The application documents that need to be submitted for preparing the application documents are: an application for change (choose the form according to the specific content of the application); Copy of the applicant's identity certificate (business license, ID card, etc.). ); Entrust the agent to submit the Power of Attorney, and directly submit the copy of the agent's ID card in the acceptance hall; To apply for changing the name of the registrant, a certificate of change issued by the registration authority shall also be submitted; (6) If the application documents are in a foreign language, a Chinese translation signed and confirmed by the translation agency shall also be provided. 1. The application forms should be filled out one by one and must be typed or printed. 2. When going through the alteration formalities, each trademark (each registration number) shall fill in an application for alteration and affix the seal of the applicant and/or the seal of the agent. 3, the applicant directly to the trademark registration hall, in addition to submitting the application, it should also submit the applicant's business license and a copy (or a copy of the business license stamped with the official seal of the unit) and a copy of the agent's ID card; If the applicant is a natural person, you can handle it yourself and submit a copy of the applicant's ID card. Where a trademark agency is entrusted, in addition to the application, a power of attorney for trademark agency, a copy of the applicant's business license or ID card shall also be submitted.