To apply for a patent, the necessary application documents must be submitted to China National Intellectual Property Administration in accordance with the regulations. The application documents can be delivered directly to the acceptance office and agencies in China National Intellectual Property Administration, or sent by registered mail to China National Intellectual Property Administration, or you can entrust an agent to handle it.
According to the patent law, there is no early publication and substantive examination for the examination and approval of utility models, but only three stages: acceptance, preliminary examination and authorization.
To apply for a patent for utility model, a request, specification, claim, abstract of specification and necessary drawings shall be submitted.
The application and review flow chart of the utility model is as follows: