Invention requires more creativity. What is creativity means that they have substantial characteristics and remarkable progress. The so-called substantive characteristics mean that it is not easy to think of and there is no obvious technical enlightenment in other technologies. This needs to be evaluated in combination with various technologies. As for the remarkable progress, it means that the technical effect is better, not that the effect is as simple as adding a bolt, but the requirements for utility models are not so high, which is novelty and the difference is not common sense.
In the process of substantive examination of an invention application, a notice of examination opinions will be issued, requiring the applicant or agent to reply. This is a difficult step in patent authorization, followed by authorization, payment and obtaining a certificate.