37 CFR 1.605: Items of information.

(a) Each request for supplemental examination may include no more than twelve items of information believed to be relevant to the patent. More than one request for supplemental examination of the same patent may be filed at any time during the period of enforceability of the patent.

(b) An item of information includes a document submitted as part of the request that contains information, believed to be relevant to the patent, that the patent owner requests the Office to consider, reconsider, or correct. If the information to be considered, reconsidered, or corrected is not, at least in part, contained within or based on any document submitted as part of the request, the discussion within the body of the request relative to the information will be considered as an item of information.

(c) An item of information must be in writing in accordance with § 1.2. To be considered, any audio or video recording must be submitted in the form of a written transcript.

(d) If one item of information is combined in the request with one or more additional items of information, each item of information of the combination may be separately counted. Exceptions include the combination of a non-English language document and its translation, and the combination of a document that is over 50 pages in length and its summary pursuant to § 1.610(b)(8).