If it is an invention, it can be found in the substantive examination; If it is another patent, it can only be found after authorization. According to the Patent Law, the examination and approval procedure of an application for a patent for invention includes five stages: acceptance, preliminary examination, publication, actual examination and authorization. Applications for utility models and designs do not need to be published in advance and substantive examination.
1, patent Literally, "patent" refers to exclusive interests and rights. The word patent comes from Latin. Litteraepa .
2, which means an open letter or a public document, is a certificate used by medieval monarchs to issue certain privileges, and later refers to the exclusive rights certificate signed by the British king himself.