For Euro-PCT applications where the EPO acted as the International Searching Authority (ISA) and, where a demand under
Art. 31 PCT was filed, also as the International Preliminary Examining Authority, or as the authority specified for supplementary international search, the applicant will already have responded to a negative WO‑ISA, IPER or supplementary international search report prepared by the EPO (unless the communication under
Rule 161 was issued before 1 April 2010 – see