What's the difference between a patent invention announcement and an invention authorization announcement?

The publication of the invention patent refers to a process after the formal examination is passed and the acceptance notice is issued. The publication of invention patents is usually published four to five months from the date of application, and it is also published in three months. After the publication, it will enter the substantive examination stage, and after entering the substantive examination stage, it will wait in line for the examiner to review. After examination, the examiner shall issue a notice of examination opinions, which shall be authorized after defense. General invention patents need to be protected, but it is only a matter of how many times. There will be at least one defense and four or five defenses. The number of defenses directly determines the length of invention patent authorization. The authorization announcement is the authorization announcement in your topic, which means that the patent has been authorized and the applicant has the patent right. The authorization time depends on the number of defenses, which is generally about one and a half years. The number of defenses is difficult to estimate, and the authorization is still three years.