Answer: The regulations for the use of registered trademarks are: first, the subject using the trademark must be legal; second, the trademark used must be legal; third, the use. The name and scope of the trademark’s goods or services must be legal. The lack of any one of the requirements constitutes irregular use of the trademark. Unregistered trademarks mainly refer to the fact that the trademark actually used must be legal and must not violate the prohibition provisions stipulated in the Trademark Law, nor may a trademark similar to a registered trademark be used, otherwise it will constitute irregular use. Therefore, you cannot change the registered trademark pattern at will