If there is a patent number, how to inquire about patent information?

The essence of the patent system is openness in exchange for protection, so patent management agencies in various countries are obliged to provide patent information to the public (most of them are free, but they dare not say anything in case of exotic feelings). Therefore, the official websites of patent administrations of major countries and organizations can carry out patent search.

Patent retrieval can be simply divided into two categories: patent text retrieval and patent examination process examination. The former is mainly to retrieve a large number of published patent texts, while the latter is to lock a patent and view the review process in a specific country (that is, the notice of review opinions and comments).

For the former, patent offices all over the world provide domestic patent text retrieval. Here are some major ones, all of which are free.

1. Log on to China National Intellectual Property Administration website or China Patent Network.

2. Click "Advanced Search" in the patent search section on the right.

Type the key words you know, such as patent number or patent name, and then click the red search button.

4. Get all relevant patent search tables, select a patent and enter the specific title page of the patent.

5. If you are prompted to install the plug-in, install it as required, otherwise you will not be able to browse the manual.

6. Click the Description button at the bottom of the patent number to enter the description page, where you can browse the specific content.