Legal basis
Article 59 of the Trademark Law of the People's Republic of China
The registered trademark contains the generic name, figure and model of the commodity, or directly indicates the quality, main raw materials, functions, uses, weights, quantities and other characteristics of the commodity, or contains a place name, and the exclusive right to use the registered trademark has no right to prohibit others from using it properly.
the exclusive right holder of a registered trademark of a three-dimensional mark has no right to prohibit others from properly using the shape of the commodity itself, the shape of the commodity needed to obtain technical effects or the shape that makes the commodity have substantial value.
before the trademark registrant applies for trademark registration, if someone else has used a trademark that is the same as or similar to the registered trademark and has certain influence before the trademark registrant, the exclusive right holder of the registered trademark has no right to prohibit the user from continuing to use the trademark within the original scope of use, but may require him to attach an appropriate distinguishing mark.
article 41
where it is necessary to change the name, address or other registered items of a registered trademark, an application for change shall be filed.