Article 22 of the Trademark Law? The applicant for trademark registration shall fill in the category and name of the goods using the trademark in accordance with the prescribed commodity classification table and apply for registration.

An applicant for trademark registration may apply for the registration of the same trademark for many kinds of goods through one application.

Applications for trademark registration and other relevant documents may be submitted in written form or in the form of data messages.

Extended data

Trademark is a sign used to distinguish one operator's brand or service from other operators' goods or services. China's Trademark Law stipulates that trademarks approved and registered by the Trademark Office, including commodity trademarks, service trademarks, collective trademarks and certification trademarks, enjoy the exclusive right to use trademarks and are protected by law. If it is a well-known trademark, it will be protected by cross-category laws.

Official website's answer from the World Intellectual Property Organization (WIPO): A trademark is a distinctive sign that a specific individual or enterprise produces or provides goods or services. The origin of trademarks can be traced back to ancient times, when craftsmen printed their signatures or "marks" on their works of art or practical products.

Baidu Encyclopedia-Trademark Law