The World Intellectual Property Organization generally follows the following principles when classifying goods and services. When national authorities and applicants encounter goods and services that are not on the classification table and need to be classified, they can also be classified according to the following criteria

1. Commodities

(1) Finished products are classified by function and use in principle. If the classification table does not specify the classification criteria, the finished product will be classified according to other similar finished products in the alphabetical classification table. According to ancillary classification criteria, i.e. according to the materials of these finished products or their method of operation;

(2) Multi-functional combined products (such as combined products of clocks and radios) can be divided into different categories corresponding to the functions or uses of each component in the product. If these standards are not listed in the table, the standards listed in Article (1) may be adopted;

(3) Raw materials, unprocessed products or semi-finished products are, in principle, classified according to their constituent raw materials;

(4) Commodities constitute a certain part of other commodities, and in principle, they are classified with other commodities, but such similar commodities shall not be used for other purposes under normal circumstances. Other cases are classified according to the above criteria (1);

(5) When finished products or semi-finished products are classified according to their constituent raw materials, if they are made of several different raw materials, in principle, they are classified according to their main raw materials;

(6) Boxes, boxes and other containers used to contain commodities are, in principle, classified into the same category as commodities.

2. Services

(1) In principle, the services are classified according to the industries classified by the service classification category names and their annotations, and similar services in the alphabetical classification table can also be classified into one category;

(2) The services of the leasing industry are, in principle, classified into the same category as the services realized through leased objects (for example, rental telephones are divided into 38 categories);

(3) Services providing advice, information or consultation are, in principle, classified in the same category as the matters involved in the provision of services, such as transportation consulting (Category 39), business management consulting (Category 35), financial consulting (Category 39) Class 36), Beauty Consultation (Class 44). The provision of advice, information or consultation by electronic means (eg telephone, computer) does not affect the classification of this service.