In T 3/03 the board decided that an amendment consisting in the generalisation of an effect obtained for particular embodiments was not admissible. In the case in point, the results obtained for particular embodiments could not be generalised since the particular circumstances of use, including the type of additive used, determined whether or not filterability was improved.
Source: http://www.epo.org/law-practice/legal-texts/html/caselaw/2019/e/clr_ii_e_1_8_3.htm
Date retrieved: 17 May 2021