Administrative Instructions under the Patent Cooperation Treaty

Section 204
Headings of the Parts of the Description

(a)  The headings of the parts of the description shall preferably be as follows:

(i) for matter referred to in Rule 5.1(a)(i), "Technical Field";

(ii) for matter referred to in Rule 5.1(a)(ii), "Background Art";

(iii) for matter referred to in Rule 5.1(a)(iii), "Disclosure of Invention” or “Summary of Invention”;

(iv) for matter referred to in Rule 5.1(a)(iv), "Brief Description of Drawings";

(v) for matter referred to in Rule 5.1(a)(v), "Best Mode for Carrying out the Invention," or, where appropriate, "Mode(s) for Carrying out the Invention" or “Description of Embodiments”;

(vi) for matter referred to in Rule 5.1(a)(vi), "Industrial Applicability";

(vii) for matter referred to in Rule 5.2(a), "Sequence Listing";

(viii) for matter referred to in Rule 5.2(b), "Sequence Listing Free Text."

(b)  The heading “Title of Invention” shall preferably precede the title of the invention.