Under Art. Art. 112(1)(b) EPC, in order to ensure uniform application of the law (see in this chapter V.B.2.3.6) or if a point of law of fundamental importance (see in this chapter V.B.2.3.7) arises, the President of the EPO may refer a point of law to the Enlarged Board "where two boards of appeal haven given different decisions on that question".
Source: http://www.epo.org/law-practice/legal-texts/html/caselaw/2019/e/clr_v_b_2_4_1.htm
Date retrieved: 17 May 2021