1 Specification, including claims, description, abstract and drawings (if any). All the documents must be filed in Chinese;
2 Instruction letter, indicating: names and addresses of applicants and inventors; The prior date and the prior number of the application and the country in which the application was filed, if the priority is claimed;
3 Power of Attorney, signed by the applicant (Notarization or legalization is not required); It can be filed later;
4 Certified copy of the prior application, if a priority is claimed. Priority document must be submitted to the State Intellectual Property Office of China (CSIPO) within three months from the date of filing in P. R. China;
5 Assignment of priority right, if the 

The description of an application for a patent for invention or utility model

applicant in China differs from that of the prior application;  

I. The title of the invention or utility model

II. Technical field: specifying the technical field to which the technical solution for which protection is sought pertains.

III. Background art: indicating the background art which can be regarded as useful for the understanding, searching and examination of the invention or utility model, and when possible, citing the documents reflecting such art.

IV. Contents of invention: disclosing the technical problems the invention or utility model aim to settle and the technical solution adopted to resolve the problem; and stating, with reference to the prior art, the advantageous effects of the invention or utility model.

V. Description of figures: briefly describing each figure in the drawings, if any.

VI. Mode of carrying out the invention or utility model: describing in detail the optimally selected mode contemplated by the applicant for carrying out the invention or utility model; where appropriate, this shall be done in terms of example, and with reference to the drawings, if any.