MPEP § 2818.01 — After Determination Finding a Substantial New Question of Patentability (Annotated Rules)

§2818.01 After Determination Finding a Substantial New Question of Patentability

USPTO MPEP version: BlueIron's Update: 2025-12-31

This page consolidates and annotates all enforceable requirements under MPEP § 2818.01, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

After Determination Finding a Substantial New Question of Patentability

This section addresses After Determination Finding a Substantial New Question of Patentability. Primary authority: 35 U.S.C. 257, 37 CFR 1.625(d), and 37 CFR 1.530. Contains: 5 permissions and 1 other statement.

Key Rules

Topic

Material Information Definition

3 rules
StatutoryPermittedAlways
[mpep-2818-01-951d1345802ef257dbc3ffce]
Materiality Standard for Patentability
Note:
Defines what information is material to patentability for supplemental examination and resulting ex parte reexamination proceedings.

37 CFR 1.625(d) provides that any ex parte reexamination ordered under 35 U.S.C. 257 will be conducted in accordance with 37 CFR 1.530 through 37 CFR 1.570, which govern ex parte reexamination, except that:

(4) information material to patentability will be defined by 37 CFR 1.56 for the purposes of a supplemental examination proceeding and any resulting ex parte reexamination proceeding.

Jump to MPEP Source · 37 CFR 1.625(d)Material Information DefinitionMateriality StandardDisclosure via Supplemental Examination
StatutoryInformativeAlways
[mpep-2818-01-faa0c4a0075fd3072d8b3b75]
Material to Patentability Standard Applies to Ex Parte Reexamination
Note:
The material to patentability standard applicable to patent applications also applies to ex parte reexaminations resulting from supplemental examination proceedings.

The material to patentability standard (37 CFR 1.56(b)) applicable to patent applications is also applicable to an ex parte reexamination proceeding under 35 U.S.C. 257 resulting from a supplemental examination proceeding because, like patent application examination, an ex parte reexamination proceeding ordered pursuant to 35 U.S.C. 257 is not limited to patents and printed publications. In contrast, the material to patentability standard under 37 CFR 1.555(b), which is applicable to ex parte reexaminations ordered pursuant to 35 U.S.C. 302, is limited to patents and printed publications. Any reference to "applicant" in 37 CFR 1.56(b) will be read as "patent owner" in the context of a supplemental examination proceeding and any resulting ex parte reexamination proceeding under 35 U.S.C. 257, because these proceedings are only available to a patent owner.

Jump to MPEP Source · 37 CFR 1.56(b))Material Information DefinitionRequest Content RequirementsMateriality Standard
StatutoryInformativeAlways
[mpep-2818-01-bf77640de8bbfc12aa31b9dc]
Ex Parte Reexamination Material Limited to Patents and Publications
Note:
The material used to determine patentability for ex parte reexaminations ordered under 35 U.S.C. 302 is limited to patents and printed publications.

The material to patentability standard (37 CFR 1.56(b)) applicable to patent applications is also applicable to an ex parte reexamination proceeding under 35 U.S.C. 257 resulting from a supplemental examination proceeding because, like patent application examination, an ex parte reexamination proceeding ordered pursuant to 35 U.S.C. 257 is not limited to patents and printed publications. In contrast, the material to patentability standard under 37 CFR 1.555(b), which is applicable to ex parte reexaminations ordered pursuant to 35 U.S.C. 302, is limited to patents and printed publications. Any reference to "applicant" in 37 CFR 1.56(b) will be read as "patent owner" in the context of a supplemental examination proceeding and any resulting ex parte reexamination proceeding under 35 U.S.C. 257, because these proceedings are only available to a patent owner.

Jump to MPEP Source · 37 CFR 1.56(b))Material Information DefinitionRequest Content RequirementsMateriality Standard
Topic

Reexamination Certificate

2 rules
StatutoryInformativeAlways
[mpep-2818-01-60d79c781cd81fda862f5263]
Order for Ex Parte Reexamination Based on Supplemental Examination Determination
Note:
The examiner will prepare an order for ex parte reexamination after issuing and mailing the supplemental examination certificate and reasons document.

After the issuance and mailing of the supplemental examination certificate and the accompanying reasons document, the examiner will prepare an order for ex parte reexamination based on the determination made in the supplemental examination proceeding. To order reexamination under 35 U.S.C. 257, the examiner may use form PTO-2302 or include form paragraph 28.04 at the beginning of an initial Office action on the merits in the resulting reexamination proceeding. The order may refer to the reasons document that was created with the supplemental examination certificate.

Jump to MPEP SourceReexamination CertificateConclusion of Ex Parte ReexaminationReexamination Order
StatutoryPermittedAlways
[mpep-2818-01-5f87a02316a1f63a6f9b0e01]
Order Must Refer to Supplemental Examination Certificate Reasons
Note:
The order for ex parte reexamination must refer to the reasons document created with the supplemental examination certificate.

After the issuance and mailing of the supplemental examination certificate and the accompanying reasons document, the examiner will prepare an order for ex parte reexamination based on the determination made in the supplemental examination proceeding. To order reexamination under 35 U.S.C. 257, the examiner may use form PTO-2302 or include form paragraph 28.04 at the beginning of an initial Office action on the merits in the resulting reexamination proceeding. The order may refer to the reasons document that was created with the supplemental examination certificate.

Jump to MPEP SourceReexamination CertificateConclusion of Ex Parte ReexaminationReexamination Order
Topic

Form Paragraph Usage

2 rules
StatutoryPermittedAlways
[mpep-2818-01-ded21edf502a78cdcbb2e493]
Examiner May Use Form PTO-2302 for Reexamination Order
Note:
The examiner can use form PTO-2302 or include paragraph 28.04 at the start of an initial Office action to order reexamination under 35 U.S.C. 257.

After the issuance and mailing of the supplemental examination certificate and the accompanying reasons document, the examiner will prepare an order for ex parte reexamination based on the determination made in the supplemental examination proceeding. To order reexamination under 35 U.S.C. 257, the examiner may use form PTO-2302 or include form paragraph 28.04 at the beginning of an initial Office action on the merits in the resulting reexamination proceeding. The order may refer to the reasons document that was created with the supplemental examination certificate.

Jump to MPEP SourceForm Paragraph UsageFirst Office Action on MeritsForm Paragraphs
StatutoryPermittedAlways
[mpep-2818-01-f078b5b4364b432751aebb46]
Initial Office Action on Merits to Order Reexamination Under 35 U.S.C. 257
Note:
This form paragraph is used at the beginning of an initial Office action to order reexamination under 35 U.S.C. 257.

The following is a form paragraph that may be used at the beginning of an initial Office action on the merits to order reexamination under 35 U.S.C. 257:

Jump to MPEP SourceForm Paragraph UsageFirst Office Action on MeritsForm Paragraphs
Topic

Disclosure via Supplemental Examination

1 rules
StatutoryPermittedAlways
[mpep-2818-01-71ee7d9c1ce2beb201278438]
Ex Parte Reexamination Conducted Differently Than Regular Ex Parte
Note:
The rule specifies that ex parte reexaminations ordered under 35 U.S.C. 257 will follow different procedures compared to regular ex parte reexaminations, particularly regarding the patent owner's right to file a statement and the scope of information considered.
37 CFR 1.625(d) provides that any ex parte reexamination ordered under 35 U.S.C. 257 will be conducted in accordance with 37 CFR 1.530 through 37 CFR 1.570, which govern ex parte reexamination, except that:
  • (1) the patent owner will not have the right to file a statement pursuant to 37 CFR 1.530, and the order will not set a time period within which to file such a statement;
  • (2) ex parte reexamination of any claim of the patent may be conducted on the basis of any item of information as set forth in 37 CFR 1.605, and is not limited to patents and printed publications or to subject matter that has been added or deleted during a reexamination proceeding, which differs from the provisions of 37 CFR 1.552(a);
  • (3) issues in addition to those raised by patents and printed publications and by subject matter added or deleted during an ex parte reexamination proceeding may be considered and resolved, which differs from 37 CFR 1.552(c); and
  • (4) information material to patentability will be defined by 37 CFR 1.56 for the purposes of a supplemental examination proceeding and any resulting ex parte reexamination proceeding.
Jump to MPEP Source · 37 CFR 1.625(d)Disclosure via Supplemental ExaminationReexamination OrderPatent Owner Statement
Topic

Request by Patent Owner

1 rules
StatutoryInformativeAlways
[mpep-2818-01-5e0a6d7fc5b0050e4bc8aecd]
Applicant Reference Read As Patent Owner In Supplemental Examination and Ex Parte Reexamination
Note:
Any reference to 'applicant' in the material to patentability standard under 37 CFR 1.56(b) is read as 'patent owner' for supplemental examination and resulting ex parte reexamination proceedings.

The material to patentability standard (37 CFR 1.56(b)) applicable to patent applications is also applicable to an ex parte reexamination proceeding under 35 U.S.C. 257 resulting from a supplemental examination proceeding because, like patent application examination, an ex parte reexamination proceeding ordered pursuant to 35 U.S.C. 257 is not limited to patents and printed publications. In contrast, the material to patentability standard under 37 CFR 1.555(b), which is applicable to ex parte reexaminations ordered pursuant to 35 U.S.C. 302, is limited to patents and printed publications. Any reference to "applicant" in 37 CFR 1.56(b) will be read as "patent owner" in the context of a supplemental examination proceeding and any resulting ex parte reexamination proceeding under 35 U.S.C. 257, because these proceedings are only available to a patent owner.

Jump to MPEP Source · 37 CFR 1.56(b))Request by Patent OwnerDisclosure via Supplemental ExaminationDuty of Disclosure
Topic

Ex Parte Reexamination

1 rules
StatutoryInformativeAlways
[mpep-2818-01-10253ade7cb527aa98cc77b3]
Procedures for Ex Parte Reexamination
Note:
The rule outlines the procedures and processes for ex parte reexamination, including amendments submitted after the first Office action.

See, generally, MPEP § 2254 and MPEP §§ 2260 – 2296 for a detailed discussion of ex parte reexamination procedures and processes. The guidance provided in MPEP § 2250 is applicable to amendments submitted after the first Office action in an ex parte reexamination proceeding resulting from a supplemental examination proceeding. As stated previously, a reexamination ordered as a result of supplemental examination is subject to the regulations and procedures of ex parte reexamination, subject to the above-noted exceptions.

Jump to MPEP SourceEx Parte ReexaminationFirst Action on Merits (FAOM)Types of Office Actions
Topic

First Action on Merits (FAOM)

1 rules
StatutoryInformativeAlways
[mpep-2818-01-16bcd1b5657f783c0dc05636]
Amendments Required After First Office Action in Ex Parte Reexamination
Note:
Guidance from MPEP § 2250 applies to amendments submitted after the first office action in an ex parte reexamination proceeding initiated by a supplemental examination.

See, generally, MPEP § 2254 and MPEP §§ 2260 – 2296 for a detailed discussion of ex parte reexamination procedures and processes. The guidance provided in MPEP § 2250 is applicable to amendments submitted after the first Office action in an ex parte reexamination proceeding resulting from a supplemental examination proceeding. As stated previously, a reexamination ordered as a result of supplemental examination is subject to the regulations and procedures of ex parte reexamination, subject to the above-noted exceptions.

Jump to MPEP SourceFirst Action on Merits (FAOM)Types of Office ActionsStatutory Authority for Examination
Topic

Reexamination Order

1 rules
StatutoryInformativeAlways
[mpep-2818-01-625de03e34d915e08a01b20a]
Supplemental Examination Reexamination Follows Ex Parte Procedures
Note:
A reexamination ordered due to a supplemental examination follows the ex parte reexamination procedures, with some exceptions.

See, generally, MPEP § 2254 and MPEP §§ 2260 – 2296 for a detailed discussion of ex parte reexamination procedures and processes. The guidance provided in MPEP § 2250 is applicable to amendments submitted after the first Office action in an ex parte reexamination proceeding resulting from a supplemental examination proceeding. As stated previously, a reexamination ordered as a result of supplemental examination is subject to the regulations and procedures of ex parte reexamination, subject to the above-noted exceptions.

Jump to MPEP SourceReexamination OrderStatutory Authority for ExaminationEx Parte Reexamination

Examiner Form Paragraphs

Examiner form paragraphs are standard language that you might see in an Office Action or communication from the USPTO. Examiners have latitude to change the form paragraphs, but you will often see this exact language.

¶ 28.04 ¶ 28.04 Reexamination Ordered Pursuant to 35 U.S.C. 257

The supplemental examination proceeding, filed on [1] , concluded with the issuance of the supplemental examination certificate on [2] . The certificate indicated that one or more of the items of information submitted as part of the request for supplemental examination raises a substantial new question of patentability. See the Reasons for Substantial New Question of Patentability Determination in the file of this proceeding.

Accordingly, ex parte reexamination of claim(s) [3] of U.S. Patent No. [4] is ordered. See 35 U.S.C. 257(b) and 37 CFR 1.625(b) . This ex parte reexamination proceeding is hereby initiated by the mailing of this order. Ex parte reexamination under 35 U.S.C. 257 will be conducted in accordance with 37 CFR 1.530 through 1.570 , which govern ex parte reexamination, subject to the exceptions enumerated in 37 CFR 1.625(d) , and, in addition, to the exception that a patent owner’s statement, including any amendment, under 37 CFR 1.530(a) – (c) may not be filed. See 35 U.S.C. 257(b) . For this reason, no amendment in an ex parte reexamination proceeding ordered under 35 U.S.C. 257 may be filed until after the mailing of a first Office action on the merits (which appears below). This reexamination proceeding has been assigned to the art unit listed at the top of the cover page of this action. All future correspondence should be directed to the assigned art unit and should be identified by the control number, which is also listed at the top of the cover page of this action, and which is identical to the control number assigned to the now-concluded supplemental examination proceeding.

A first Office action on the merits appears below.

Citations

Primary topicCitation
Disclosure via Supplemental Examination
Form Paragraph Usage
Material Information Definition
Reexamination Certificate
Request by Patent Owner
35 U.S.C. § 257
Material Information Definition
Request by Patent Owner
35 U.S.C. § 302
Disclosure via Supplemental Examination
Material Information Definition
37 CFR § 1.530
Disclosure via Supplemental Examination37 CFR § 1.552(a)
Disclosure via Supplemental Examination37 CFR § 1.552(c)
Material Information Definition
Request by Patent Owner
37 CFR § 1.555(b)
Disclosure via Supplemental Examination
Material Information Definition
37 CFR § 1.56
Material Information Definition
Request by Patent Owner
37 CFR § 1.56(b)
Disclosure via Supplemental Examination
Material Information Definition
37 CFR § 1.570
Disclosure via Supplemental Examination37 CFR § 1.605
Disclosure via Supplemental Examination
Material Information Definition
37 CFR § 1.625(d)
Ex Parte Reexamination
First Action on Merits (FAOM)
Reexamination Order
MPEP § 2250
Ex Parte Reexamination
First Action on Merits (FAOM)
Reexamination Order
MPEP § 2254
Ex Parte Reexamination
First Action on Merits (FAOM)
Reexamination Order
MPEP § 2260
Form Paragraph Usage
Reexamination Certificate
Form Paragraph § 28.04

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31