(1) There is a request in the application documents. The category of the patent application in the request is clear; Indicate the name and address of the applicant;
(2) There are instructions and claims in the application documents for a patent for invention; The application documents for a patent for utility model include the specification, the appended drawings of the specification and the claims; There are pictures or photographs in the application documents for a patent for design;
(3) The application documents shall be printed in Chinese. All application documents have clear handwriting and lines, have not been altered, and their contents can be identified. The description, drawings and design pictures of the application for a patent for invention or utility model are drawn in indelible handwriting and have not been modified;
(4) A foreigner, foreign enterprise or other foreign organization that has no habitual residence or business office in China applies for a patent and handles other patent affairs in China and entrusts a patent agency designated by China National Intellectual Property Administration to handle it; And the country where it is located has signed relevant agreements with China or participated in relevant international treaties, or it can be handled in accordance with the principle of reciprocity;
(5) Where the applicant is an individual, enterprise or other organization in Hongkong, Macau or Taiwan Province, he has entrusted a patent agency or a patent agency designated by China National Intellectual Property Administration to handle the matter in accordance with the regulations.