What other documents are there to get the invention patent certificate from the notification of patent application acceptance?

Patents are divided into inventions, utility models and designs: it takes 2-3 years to get a patent certificate for an invention patent, 1 year for a utility model and 10 month for a design. Invention patents need preliminary examination and substantive examination, which are being examined all over the world, so only technologies that meet the conditions of patent authorization such as novelty and creativity can finally obtain patent certificates; When you say that the patent acceptance notice only means that the patented technology has been submitted to China National Intellectual Property Administration and the technology is still in the patent examination stage, it does not mean that the patent has been authorized, and there is no guarantee that it will be authorized. Therefore, the patent acceptance notice and patent certificate are two different documents.