How long does it take to apply for an invention patent quickly?

To apply for a patent for invention, you should first ask a person with patent agency qualification or a patent agency to write a patent application document and fill in the relevant application form, and then apply to the China National Intellectual Property Administration Patent Office or a local patent agency (you can also entrust a patent agency to submit an application). To speed up the application approval, you can go to the coordination and management office of the local intellectual property office and call 1 14. How quickly we can get the authorization involves the actual situation of patent examination in China National Intellectual Property Administration Patent Office, which we can't control and accurately grasp. We can only give you the following suggestions: 1. Every patent application, whether it is accelerated or not, must go through the patent preliminary examination process, which takes about 5-6 months; 2. If the review is accelerated, it will take about 8 months at the earliest to issue the authorization announcement on the premise of high quality patent agency documents, and then the payment can be made and the authorization certificate can be processed; If the quality of patent agency documents is not high, especially when there are problems with patent claims, examiners will also communicate and modify with patent agencies, which will lead to the extension of examination time. 3. If we don't speed up the examination, the average time from application to authorization of invention patent is 27 months.