I. Examination at the Acceptance Stage After receiving the patent application, the Patent Office will conduct examination and acceptance.
Second, the patent application accepted in the preliminary examination stage will automatically enter the preliminary examination stage after paying the application fee as required.
Three. Publication stage The application for a patent for invention has entered the publication stage since the issuance of the notice of preliminary examination. If the applicant does not make a request for publicity in advance, it will not enter the public preparation procedure until 15 months after the application date.
Four. In the substantive examination stage, in the actual examination process, whether the patent application is novel, creative, practical and other substantive conditions stipulated in the patent law will be comprehensively examined. If the substantive examination finds no reason for rejection, it shall enter the authorization procedure as required.
Five, the authorization stage of the application for a patent for invention after substantive examination found no reason for rejection, by the examiner to make a notice of authorization.
The above introduces the process of invention patent examination. Generally speaking, there are three stages in the invention patent examination, namely, the preliminary examination stage, the actual examination stage and the authorization stage. Compared with other patents, there is one more substantive examination in the examination procedure of invention patents, so the examination of invention patents is long and strict, and it takes one and a half to two years for an invention to be authorized from the date of application.