If the trademark is applied in the name of a company, the owner is the company, and the change of the legal person will not affect the trademark owner. In this case, the trademark does not need to be changed. Only if the company name and company address change, the trademark needs to be changed. Article 41 of the "Trademark Law of the People's Republic of China" 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 30 of the "Regulations on the Implementation of the Trademark Law of the People's Republic of China" stipulates: If the name, address or other registration information of the trademark registrant is changed, a change application must be submitted to the Trademark Office. If the name of the trademark registrant is changed, a change certification document issued by the relevant registration authority must also be submitted. If the Trademark Office approves the application, it shall issue corresponding certificates to the trademark registrant and make an announcement; if it disapproves the application, it shall notify the applicant in writing and explain the reasons. If the name or address of the trademark registrant is changed, the trademark registrant shall change all registered trademarks together; if the changes are not made together, the Trademark Office will notify the trademark registrant to make corrections within a time limit; if the trademark registrant fails to make corrections within the time limit, it will be deemed to have given up the change application, and the Trademark Office will The applicant shall be notified in writing.