An additional search will sometimes be required either at the first stage of amendment or subsequently. This may arise for a number of reasons.
An additional search may be necessary:
If the application has been filed under the PCT, the search report will be the international search report made under the PCT, which will be accompanied by a supplementary European search report, unless the Administrative Council has decided that a supplementary report is to be dispensed with (see E‑IX, 3.2). Both of these reports will have to be considered by the examiner when deciding whether any additional search is required.
For searches under Rule 164(2) see C‑III, 2.3.