How to check the authenticity of patent number

The authenticity of the patent number can be queried in the following two ways:

1, through the website "China and multinational companies patent examination information inquiry". After inputting relevant information, you can query the basic information of the patent, including application information and examination information, so as to verify the validity and authenticity of the patent.

2. Inquire through the official account of "China National Intellectual Property Administration" WeChat. Enter the patent number to check whether the patent exists and whether it is within the validity period.