If it is decided that an independent claim defines a patentable invention within the meaning of Art. 52(1), it must be possible to derive a technical problem from the application. In this case the requirement of Rule 42(1)(c) is fulfilled (see T 26/81).[Rule 42(1)(c); ]
Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/f_ii_4_6.htm
Date retrieved: 17 May 2021