(a) Confidentiality of patent application information. Patent applications that have not been published under 35 U.S.C. 122(b) are generally preserved in confidence pursuant to 35 U.S.C. 122(a). Information concerning the filing, pendency, or subject matter of an application for patent, including status information, and access to the application, will only be given to the public as set forth in § 1.11 or in this section.

(1) Records associated with patent applications (see paragraph (g) of this section for international applications and paragraph (j) of this section for international design applications) may be available in the following situations:

(i) Patented applications and statutory invention registrations. The file of an application that has issued as a patent or published as a statutory invention registration is available to the public as set forth in § 1.11. A copy of the patent application-as-filed, the file contents of the application, or a specific document in the file of such an application may be provided upon request and payment of the appropriate fee set forth in § 1.19(b).
(ii) Published abandoned applications. The file of an abandoned published application is available to the public as set forth in § 1.11(a). A copy of the application-as-filed, the file contents of the published application, or a specific document in the file of the published application may be provided to any person upon request and payment of the appropriate fee set forth in § 1.19(b).
(iii) Published pending applications. A copy of the application-as-filed, the file contents of the application, or a specific document in the file of a pending published application may be provided to any person upon request and payment of the appropriate fee set forth in § 1.19(b). If a redacted copy of the application was used for the patent application publication, the copy of the specification, drawings, and papers may be limited to a redacted copy. The Office will not provide access to the paper file of a pending application that has been published, except as provided in paragraph (c) or (i) of this section.
(iv) Unpublished abandoned applications (including provisional applications) that are identified or relied upon. The file contents of an unpublished, abandoned application may be made available to the public if the application is identified in a U.S. patent, a statutory invention registration, a U.S. patent application publication, an international publication of an international application under PCT Article 21(2), or a publication of an international registration under Hague Agreement Article 10(3) of an international design application designating the United States. An application is considered to have been identified in a document, such as a patent, when the application number or serial number and filing date, first named inventor, title, and filing date or other application specific information are provided in the text of the patent, but not when the same identification is made in a paper in the file contents of the patent and is not included in the printed patent. Also, the file contents may be made available to the public, upon a written request, if benefit of the abandoned application is claimed under 35 U.S.C. 119(e), 120, 121, 365(c), or 386(c) in an application that has issued as a U.S. patent, or has published as a statutory invention registration, a U.S. patent application publication, an international publication of an international application under PCT Article 21(2), or a publication of an international registration under Hague Agreement Article 10(3). A copy of the application-as-filed, the file contents of the application, or a specific document in the file of the application may be provided to any person upon written request, and payment of the appropriate fee (§ 1.19(b)).
(v) Unpublished pending applications (including provisional applications) whose benefit is claimed. A copy of the file contents of an unpublished pending application may be provided to any person, upon written request and payment of the appropriate fee (§ 1.19(b)), if the benefit of the application is claimed under 35 U.S.C. 119(e), 120, 121, 365(c), or 386(c) in an application that has issued as a U.S. patent, or in an application that has published as a statutory invention registration, a U.S. patent application publication, an international publication of an international application under PCT Article 21(2), or a publication of an international registration under Hague Agreement Article 10(3). A copy of the application-as-filed, or a specific document in the file of the pending application may also be provided to any person upon written request and payment of the appropriate fee (§ 1.19(b)). The Office will not provide access to the paper file of a pending application, except as provided in paragraph (c) or (i) of this section.
(vi) Unpublished pending applications (including provisional applications) that are incorporated by reference or otherwise identified. A copy of the application as originally filed of an unpublished pending application may be provided to any person, upon written request and payment of the appropriate fee (§ 1.19(b)), if the application is incorporated by reference or otherwise identified in a U.S. patent, a statutory invention registration, a U.S. patent application publication, an international publication of an international application under PCT Article 21(2), or a publication of an international registration under Hague Agreement Article 10(3) of an international design application designating the United States. The Office will not provide access to the paper file of a pending application, except as provided in paragraph (c) or (i) of this section.
(vii) When a petition for access or a power to inspect is required. Applications that were not published or patented, that are not the subject of a benefit claim under 35 U.S.C. 119(e), 120, 121, 365(c), or 386(c) in an application that has issued as a U.S. patent, an application that has published as a statutory invention registration, a U.S. patent application publication, an international publication of an international application under PCT Article 21(2), or a publication of an international registration under Hague Agreement Article 10(3), or are not identified in a U.S. patent, a statutory invention registration, a U.S. patent application publication, an international publication of an international application under PCT Article 21(2), or a publication of an international registration under Hague Agreement Article 10(3) of an international design application designating the United States, are not available to the public. If an application is identified in the file contents of another application, but not the published patent application or patent itself, a granted petition for access (see paragraph (i)) or a power to inspect (see paragraph (c) of this section) is necessary to obtain the application, or a copy of the application.

(2) Information concerning a patent application may be communicated to the public if the patent application is identified in a published patent document or in an application as set forth in paragraphs (a)(1)(i) through (a)(1)(vi) of this section. The information that may be communicated to the public (i.e., status information) includes:

(i) Whether the application is pending, abandoned, or patented;
(ii) Whether the application has been published under 35 U.S.C. 122(b);
(iii) The application “numerical identifier” which may be:

(A) The eight-digit application number (the two-digit series code plus the six-digit serial number); or
(B) The six-digit serial number plus any one of the filing date of the national application, the international filing date, or date of entry into the national stage; and

(iv) Whether another application claims the benefit of the application (i.e., whether there are any applications that claim the benefit of the filing date under 35 U.S.C. 119(e), 120, 121, 365, or 386 of the application), and if there are any such applications, the numerical identifier of the application, the specified relationship between the applications (e.g., continuation), whether the application is pending, abandoned or patented, and whether the application has been published under 35 U.S.C. 122(b).

*****

35 U.S.C. 122 Confidential status of applications; publication of patent applications.
(a) CONFIDENTIALITY.— Except as provided in subsection (b), applications for patents shall be kept in confidence by the Patent and Trademark Office and no information concerning the same given without authority of the applicant or owner unless necessary to carry out the provisions of an Act of Congress or in such special circumstances as may be determined by the Director.
(b) PUBLICATION.—

(1) IN GENERAL.—

(A) Subject to paragraph (2), each application for a patent shall be published, in accordance with procedures determined by the Director, promptly after the expiration of a period of 18 months from the earliest filing date for which a benefit is sought under this title. At the request of the applicant, an application may be published earlier than the end of such 18-month period.
(B) No information concerning published patent applications shall be made available to the public except as the Director determines.
(C) Notwithstanding any other provision of law, a determination by the Director to release or not to release information concerning a published patent application shall be final and nonreviewable.

(2) EXCEPTIONS.—

(A) An application shall not be published if that application is—

(i) no longer pending;
(ii) subject to a secrecy order under section 181 ;
(iii) a provisional application filed under section 111(b); or
(iv) an application for a design patent filed under chapter 16.

(B)

(i) If an applicant makes a request upon filing, certifying that the invention disclosed in the application has not and will not be the subject of an application filed in another country, or under a multilateral international agreement, that requires publication of applications 18 months after filing, the application shall not be published as provided in paragraph (1).
(ii) An applicant may rescind a request made under clause (i) at any time.
(iii) An applicant who has made a request under clause (i) but who subsequently files, in a foreign country or under a multilateral international agreement specified in clause (i), an application directed to the invention disclosed in the application filed in the Patent and Trademark Office, shall notify the Director of such filing not later than 45 days after the date of the filing of such foreign or international application. A failure of the applicant to provide such notice within the prescribed period shall result in the application being regarded as abandoned.
(iv) If an applicant rescinds a request made under clause (i) or notifies the Director that an application was filed in a foreign country or under a multilateral international agreement specified in clause (i), the application shall be published in accordance with the provisions of paragraph (1) on or as soon as is practical after the date that is specified in clause (i).
(v) If an applicant has filed applications in one or more foreign countries, directly or through a multilateral international agreement, and such foreign filed applications corresponding to an application filed in the Patent and Trademark Office or the description of the invention in such foreign filed applications is less extensive than the application or description of the invention in the application filed in the Patent and Trademark Office, the applicant may submit a redacted copy of the application filed in the Patent and Trademark Office eliminating any part or description of the invention in such application that is not also contained in any of the corresponding applications filed in a foreign country. The Director may only publish the redacted copy of the application unless the redacted copy of the application is not received within 16 months after the earliest effective filing date for which a benefit is sought under this title. The provisions of section 154(d) shall not apply to a claim if the description of the invention published in the redacted application filed under this clause with respect to the claim does not enable a person skilled in the art to make and use the subject matter of the claim.

(c) PROTEST AND PRE-ISSUANCE OPPOSITION.— The Director shall establish appropriate procedures to ensure that no protest or other form of pre-issuance opposition to the grant of a patent on an application may be initiated after publication of the application without the express written consent of the applicant.
(d) NATIONAL SECURITY.— No application for patent shall be published under subsection (b)(1) if the publication or disclosure of such invention would be detrimental to the national security. The Director shall establish appropriate procedures to ensure that such applications are promptly identified and the secrecy of such inventions is maintained in accordance with chapter 17 .
(e) PREISSUANCE SUBMISSIONS BY THIRD PARTIES.—

(1) IN GENERAL.—Any third party may submit for consideration and inclusion in the record of a patent application, any patent, published patent application, or other printed publication of potential relevance to the examination of the application, if such submission is made in writing before the earlier of—

(A) the date a notice of allowance under section 151 is given or mailed in the application for patent; or
(B) the later of—

(i) 6 months after the date on which the application for patent is first published under section 122 by the Office, or
(ii) the date of the first rejection under section 132 of any claim by the examiner during the examination of the application for patent.

(2) OTHER REQUIREMENTS.—Any submission under paragraph

(1) shall—

(A) set forth a concise description of the asserted relevance of each submitted document;
(B) be accompanied by such fee as the Director may prescribe; and
(C) include a statement by the person making such submission affirming that the submission was made in compliance with this section.