Chapter XII – Supplementary international search (SIS)
4. Scope of the search
At the EPO the scope of a SIS is the same as for any other international search carried out by the EPO as ISA and is not limited to documentation in a specific language.
If an ISR from the main ISA is already available when the examiner carries out the SIS, it will be taken into account when establishing the SISR and written opinion.