How to distinguish between true and false patent certificates

The patent certificate can only prove that the patent has the patent right on the date of authorization, and the specific situation in the future should be inquired in the patent register. If you just want to know the status of the patent briefly, you can search the detailed information and legal status of the patent on China National Intellectual Property Administration's website according to the patent number. Because of the lag of website entry, if you want to know the information accurately, you can apply to China National Intellectual Property Administration for a copy of the patent register.

The following quotation is taken from Chapter 9, Part V of the Patent Examination Guide.

When the patent right is granted, the contents recorded in the patent register and the patent certificate are consistent and have the same legal effect; After the patent right is granted, the change of the legal status of the patent is only recorded in the patent register, which leads to the inconsistency between the contents recorded in the patent register and the patent certificate. The legal status recorded in the patent register shall prevail.

A copy of the patent register is made according to the patent register. After the announcement of granting the patent right, anyone can request the Patent Office to issue a copy of the patent register. Anyone who requests a copy of the patent register shall submit a request for a copy of the document and pay the relevant fees.

After receiving the relevant requests and fees, the Patent Office shall make a copy of the patent register, check it with the patent application documents, affix the special seal for proof and send it to the requester.