Preliminary response to petition.
37 C.F.R. § 42.207
in effectEffective: 2024-07-01(a) The patent owner may file a preliminary response to the petition. The response is limited to setting forth the reasons why no post-grant review should be instituted under 35 U.S.C. 324 and can include supporting evidence. The preliminary response is subject to the word count under § 42.24.
(b) Due date. The preliminary response must be filed no later than three months after the date of a notice indicating that the request to institute a post-grant review has been granted a filing date. A patent owner may expedite the proceeding by filing an election to waive the patent owner preliminary response.
(c) [Reserved]
(d) No amendment. The preliminary response shall not include any amendment.
(e) Disclaim Patent Claims. The patent owner may file a statutory disclaimer under 35 U.S.C. 253(a) in compliance with § 1.321(a), disclaiming one or more claims in the patent. No post-grant review will be instituted based on disclaimed claims.
Source: eCFRURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-37.xmlFetched: 7/26/2026
