Other requirements of the EPC may also interact with Art. 123(3) after grant. For instance, if a patent as granted only contains claims that in fact define a "method for treatment of the human or animal body by therapy or surgery practised on the human or animal body" or contain such a method step, and such a patent is opposed under Art. 53(c), then Art. 53(c) and Art. 123(3) may operate in combination so that the patent must inevitably be revoked, in that:[Art. 123(3); ]
Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/h_iv_3_6.htm
Date retrieved: 17 May 2021