Provided that the reasons given enable the parties concerned to understand whether the decision was justified or not, the deciding organ is under no obligation to address each and every argument presented by the party concerned (see chapter V.B.4.3.10 "Consideration of the parties' arguments in the written decision"; see also T 1898/11 and T 1557/07 quoted in T 1969/07, T 698/10, T 1199/10 and T 1961/13). Moreover, a party has no absolute right to be heard separately on each and every one of its auxiliary requests (see also chapter V.B.4.3.12 "No right to be heard separately on all requests").
Source: http://www.epo.org/law-practice/legal-texts/html/caselaw/2019/e/clr_iii_b_2_4_3.htm
Date retrieved: 17 May 2021