The termination of patent right refers to the situation that the effective patent right is extinguished due to the occurrence of some legal fact, excluding the situation that it is regarded as nonexistent from the beginning because of invalidation. The termination of the patent right due to the expiration of the protection period or the abandonment of the patent right by the patentee can only show that the patent right is no longer protected by law, but the legitimacy of the patent right cannot be denied, because all legal relations that occurred before the patent right are valid.
The invalidation of the patent right is only to restore the patent right that should not exist to its original state through legal procedures, not to terminate the patent right. A patent right that is declared invalid is not invalid from the date of invalidation, but is regarded as invalid from the beginning.