What does the new patent certificate say on the back?

1. The new patent certificate and patent certificate copy no longer use the patent certificate envelope, but still adopt A4 specification and vertical version; From one side to the front and back, there is only a border on the back without logo and seal;

2. Add the QR code to the original stamp duty mark on the front of the certificate and move the stamp duty mark to the back of the certificate; Add the information of the applicant, inventor or designer of the patent application date on the back of the certificate.