【辭典】Assignor Estoppel 授權人禁反言

【辭典】Assignor Estoppel 授權人禁反言

源自此文：

The judicial doctrine of assignor estoppel prevents the assignor of a patent from later contending that the patent is invalid.
On appeal, the CAFC agreed that the court had correctly excluded the inventor’s testimony because it would be “unfair” to allow the inventor to testify against the patent.

此司法原則在於防止專利授權人於日後辯稱他的專利無效，因為允許授權人做證反對自己的專利，對被授權人不公平。