Patents are divided into inventions, utility models and designs. It takes 2-3 years from application to obtaining a patent certificate. The utility model needs 65,438+0 years and the design needs 65,438+00 months. Invention patents need preliminary examination and substantive examination, which are being examined all over the world. Therefore, only technologies that meet the requirements 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. Information can be found on our website.