7. Claims. (1) The claim shall set out the technical features that are necessary to define the subject matter of the invention that are part of the prior art. (2) A technical feature set out in a claim shall not rely on a reference to the description or drawings but a reference to a feature may be included if the intelligibility of the claim may be increased by doing so. (3) A claim shall not include a drawing but may include chemical or mathematical formulae. (4) Subject to subregulation (5) an application shall not include more than one claim. (5) An application may include two or more independent claims if each independent claim relates to a single product or a single process. (6) Where more than one claim is included in the application, the claims shall be numbered consecutively (7) An application may include a claim stating the essential technical features of an invention with one or more following claims setting out particular embodiments of the invention. (8) The following apply to claims described in subregulation (7)— (a) the claims setting out particular embodiments of the invention shall include a reference to the claim stating the essential technical features of the invention; (b) the claims setting out particular embodiments of the invention shall state the features that it is desired that those claims protect; and (c) the claims shall be grouped together to the extent possible and in the most appropriate way. 213