How long does it take for a utility model patent to be published from application?

The authorization time for utility model patents is generally 4-8 months. If the exam is successful, there is no need for a second interview, usually about 5 months. Pay the registration fee and the annual fee for the first year after authorization, and issue the patent certificate one month later. If you want to reply to the review opinions, it will take two or three months. So the approximate review time is 4-8 months.