The application must contain "one or more claims".[Art. 78(1)(c); ]
These must:[Art. 84; ]
Since the extent of the protection conferred by a European patent or application is determined by the claims (interpreted with the help of the description and the drawings), clarity of the claims is of the utmost importance (see also F‑IV, 4).[Art. 69(1); ]
Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/f_iv_1.htm
Date retrieved: 17 May 2021