8.4 Surrender of patent 

A patent may not be surrendered in opposition proceedings by the proprietor filing a declaration of surrender with the EPO. Such a surrender must be declared before the competent authorities in the designated states in question (see D‑VII, 5.1). Nevertheless, if a proprietor unambiguously declares to the EPO the surrender (or abandonment or renunciation) of the patent, this is deemed equivalent to a request that the patent be revoked (see also D‑VIII, 1.2.5).