In China, trademark registration categories are stipulated in accordance with the Trademark Law and the Trademark Classification Guidelines. The following is an explanation of the categories of trademark registration:

1. Trademark classification system: Trademark classification is a system that classifies various goods and services according to their nature and purpose. The trademark classification system adopted in China is the "Trademark Classification Guide" (the latest version is the 11th edition), which divides goods into 34 categories and services into 11 categories.

2. Product category: Product category is used to classify the products subject to trademark application. Each product category represents a group of products with similar properties or uses. For example, Class 25 represents goods such as clothing, footwear, and hats; Class 29 represents goods such as meat, fish, and dairy products.

3. Service category: Service category is used to classify services for trademark application. Each service category represents a group of services of a similar nature or type. For example, Class 35 represents services such as advertising, business management, and office services; Class 42 represents services such as scientific research, engineering design, and software development.

4. Multi-category application: Trademark holders can select one or more appropriate categories of goods and services to apply for trademark registration according to their needs. For multi-category applications, additional fees need to be paid at the time of application and will be described and classified accordingly according to each category.

The regulations on trademark registration categories help trademark registration agencies manage, classify and compare trademarks. When applying for trademark registration, trademark holders need to carefully select the appropriate categories of goods and services and ensure that the scope of use of their trademarks is consistent with the selected categories.

The above is a general description of the categories of trademark registration in China. Specific trademark classifications and regulations can be queried and referenced according to the latest "Trademark Classification Guide".

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