Chapter XII – Supplementary international search (SIS)
The SIS is always made on the claims as originally filed (or a translation thereof), irrespective of whether amendments have been filed under Art. 19 PCT or Art. 34 PCT.
In cases where the international application was corrected by the RO under Rule 20.5bis, the EPO as SISA will carry out the supplementary international search on the basis of the international application including the pages submitted later and containing the correct element or part. This is the version that will have been searched by the main ISA.