This is a common saying about patent authorization and certificate, and it is also a common problem in the process of patent transfer. The so-called "authorized free" patent means that after the patent is authorized, it is changed before the registration fee is paid; "Certificate" This is a patent for which a certificate has been obtained. However, the information of the right holder and inventor on this certificate cannot be changed, but after the patent ownership is changed, you can apply for a copy of the patent book to reflect the relevant rights.
Authorized free patents are more popular because certificates can show information about changing future generations. However, because the authorized unpaid fees have a payment period, once they are exceeded, the restoration fee will be paid. Therefore, authorized free patents often exist for a short time, mostly not more than two and a half months. . In the actual transaction, you need to consider the purpose of your transfer, and then choose the corresponding patent type.