4. Clarity and interpretation of claims
4.23 Order of claims
There is no legal requirement that the first claim must be the broadest. However, Art. 84 requires that the claims must be clear not only individually but also as a whole. Therefore, where there is a large number of claims, they need to be arranged with the broadest claim first. If the broadest of a large number of claims is a long way down such that it could easily be overlooked, the applicant is required either to rearrange the claims in a more logical way or to direct attention to the broadest claim in the introductory part or in the summary of the description.
Furthermore, if the broadest claim is not the first one, the later broader claim must also be an independent claim. Consequently, where these independent claims are of the same category, an objection may also be raised under Rule 43(2) (see F‑IV, 3.2 and F-IV, 3.3).
Claims which are not consecutively numbered in Arabic numerals constitute a deficiency under Rule 43(5). Such a deficiency may occur, for example, if a numeral is missing, a numeral is used multiple times or a claim contains no numeral or a numeral comprising a decimal separator. Deficient claim numbering can also lead to a lack of clarity, for example if a dependent claim refers to a claim number used twice.