37 CFR § 1.525 - Order for reexamination.

---
identifier: "/us/cfr/t37/s1.525"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "37 CFR § 1.525 - Order for  reexamination."
title_number: 37
title_name: "Patents, Trademarks, and Copyrights"
section_number: "1.525"
section_name: "Order for  reexamination."
chapter_name: "UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "1"
part_name: "RULES OF PRACTICE IN PATENT CASES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "35 U.S.C. 2(b)(2), unless otherwise noted."
regulatory_source: "24 FR 10332, Dec. 22, 1959, unless otherwise noted."
cfr_part: "1"
---


# 1.525 Order for  reexamination.

(a) If a substantial new question of patentability is found pursuant to § 1.515 or § 1.520, the determination will include an order for *ex parte* reexamination of the patent for resolution of the question. If the order for *ex parte* reexamination resulted from a petition pursuant to § 1.515(c), the *ex parte* reexamination will ordinarily be conducted by an examiner other than the examiner responsible for the initial determination under § 1.515(a).

(b) The notice published in the *Official Gazette* under § 1.11(c) will be considered to be constructive notice and *ex parte* reexamination will proceed.

[65 FR 76775, Dec. 7, 2000]