The "full refund" level applies where the EPO can make full use of the earlier search report for drawing up the international search report.[OJ EPO 2019, A5; ]
This occurs, in particular, where the claims of the earlier and the later application are identical or where the claims of the later application are limited with respect to those of the earlier application, this limitation being due to
Source: http://www.epo.org/law-practice/legal-texts/html/guidelinespct/e/a_iii_9_2_1_1.htm
Date retrieved: 17 May 2021