What are the patent number inquiry methods?

The method is as follows: 1, log on to the website of China National Intellectual Property Administration or China Patent Network 2, click "Advanced Search" 3 in the patent search section on the right, enter keywords you know, such as patent number or patent name, click the red search button 4 to get all relevant patent search forms, and select a patent to enter the specific title page 5 of the patent. If you are prompted to install the plug-in, you will install it as required, otherwise you will not be able to browse the instructions. 6. Click the manual button at the bottom of the patent number to enter the manual page, where you can browse the specific content. 7. Click the Save button in the top line to select the download path, and then click OK to download successfully.