How to know whether a patent is true or false? Whether the patent application is successful (certificate issuance) can be inquired at the Patent Office, thank you.

Determine the legal status of the patent, call the patent office and ask for patent registration. The legal status of a patent is subject to the patent register, because even if the patent certificate is terminated or invalid due to unpaid or invalid complaints, the patent certificate will not be revoked. Therefore, if you make an inquiry, you can check the patent register, and the rest are only for reference and cannot be used as a legal basis.

Public patents can be found on the website, even if they are authorized, but they can also be found outside the public stage. It does not mean that the website of the Patent Office must be an authorized patent.