MPEP § 2816.02 — Criteria for Making the Determination (Annotated Rules)

§2816.02 Criteria for Making the Determination

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

This page consolidates and annotates all enforceable requirements under MPEP § 2816.02, 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.

Criteria for Making the Determination

This section addresses Criteria for Making the Determination. Primary authority: 35 U.S.C. 325(d), 35 U.S.C. 101, and 35 U.S.C. 101). Contains: 2 requirements, 2 prohibitions, 5 guidance statements, 11 permissions, and 5 other statements.

Key Rules

Topic

SNQ Criteria

19 rules
StatutoryInformativeAlways
[mpep-2816-02-647c9fd41aae466bf9d82919]
Criteria for Supplemental Examination Request
Note:
The request for supplemental examination is granted if any submitted information raises a substantial new question of patentability affecting at least one claim.

The criteria for making the determination on the request for supplemental examination is whether any of the items of information submitted with or as part of the request raise a substantial new question of patentability affecting at least one claim of the patent. See 35 U.S.C. 257(a).

Jump to MPEP SourceSNQ CriteriaRequest Content RequirementsSubstantial New Question of Patentability
StatutoryInformativeAlways
[mpep-2816-02-18775707050f052f10a0049a]
Examiner Determines SNQ for Each Item of Information
Note:
The examiner must decide if a substantial new question of patentability is raised by each piece of information provided.

The examiner will determine if a SNQ is raised by each item of information. The SNQ standard in supplemental examination proceedings is identical to the “substantial new question of patentability” standard in ex parte reexamination proceedings. The meaning and scope of the term “a substantial new question of patentability” is not defined in the statute, and must be developed on a case-by-case basis, with reference to earlier case law involving ex parte reexamination proceedings.

Jump to MPEP SourceSNQ CriteriaSubstantial New Question of PatentabilityEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2816-02-552fb381e0fe9b8cd94152d8]
Substantial New Question of Patentability Standard
Note:
The standard for determining a substantial new question of patentability in supplemental examination is the same as that used in ex parte reexamination proceedings.

The examiner will determine if a SNQ is raised by each item of information. The SNQ standard in supplemental examination proceedings is identical to the “substantial new question of patentability” standard in ex parte reexamination proceedings. The meaning and scope of the term “a substantial new question of patentability” is not defined in the statute, and must be developed on a case-by-case basis, with reference to earlier case law involving ex parte reexamination proceedings.

Jump to MPEP SourceSNQ CriteriaSubstantial New Question of PatentabilityEx Parte Reexamination
StatutoryRequiredAlways
[mpep-2816-02-9fd3586fb1080961a09e58df]
Substantial New Question of Patentability Determination
Note:
Examiners must determine if new information raises a substantial new question of patentability on a case-by-case basis, referencing prior ex parte reexamination cases.

The examiner will determine if a SNQ is raised by each item of information. The SNQ standard in supplemental examination proceedings is identical to the “substantial new question of patentability” standard in ex parte reexamination proceedings. The meaning and scope of the term “a substantial new question of patentability” is not defined in the statute, and must be developed on a case-by-case basis, with reference to earlier case law involving ex parte reexamination proceedings.

Jump to MPEP SourceSNQ CriteriaSubstantial New Question of PatentabilityEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2816-02-291e086da1808b8a75494e54]
Substantial New Question of Patentability Criteria
Note:
If new information raises a substantial new question of patentability for at least one claim, it is considered unless the same question has been decided in court, by an earlier examination, or in pending reexamination.

If an item of information raises a substantial new question of patentability (SNQ) for at least one claim of the patent, then a substantial new question of patentability as to the claim is present, unless the same question of patentability has already been: (A) decided in a final holding of invalidity by a federal court in a decision on the merits involving the claim, after all appeals; (B) decided in an earlier concluded examination or review of the patent by the Office; or (C) raised to or by the Office in a pending reexamination or supplemental examination of the patent. Issues involving 35 U.S.C. 325(d) must be referred to the Director of the CRU. An “earlier concluded examination or review” of the patent is: (A) the original examination of the application which matured into the patent; (B) the examination of the patent in a reissue application that has resulted in a reissue of the patent; (C) the examination of the patent in an earlier concluded reexamination or supplemental examination of the patent; (D) the review of the patent in an earlier concluded trial by the Patent Trial and Appeal Board, such as a post-grant review, inter partes review, or covered business method review of the patent; or (E) any other contested proceeding, which has been concluded and which involved the patent.

Jump to MPEP SourceSNQ CriteriaReissue and ReexaminationSubstantial New Question of Patentability
StatutoryInformativeAlways
[mpep-2816-02-fafe2aa4fe63f863fff14a1f]
Substantial New Question of Patentability Based on Old Art
Note:
Determines whether a new argument or interpretation presents a different question of patentability based on previously considered prior art.

For example, the same question of patentability may already have been decided if the Office has previously considered, in an earlier concluded examination or review of the patent, the same question of patentability based on the same prior art. See In re Recreative Technologies, 83 F.3d 1394, 38 USPQ2d 1776 (Fed. Cir. 1996). Prior art which has been cited or considered by the Office is referred to, for the sake of expediency, as “old art,” as coined by the Federal Circuit in its decision in In re Hiniker, 150 F.3d 1362, 1365-66, 47 USPQ2d 1523, 1526 (Fed. Cir. 1998). Reliance on old art does not necessarily preclude the existence of a substantial new question of patentability (SNQ) that is based exclusively on that old art. See Public Law 107-273, 116 Stat. 1758, 1899-1906 (2002), which expanded the scope of what qualifies for a SNQ. Determinations on whether a SNQ exists in such an instance shall be based upon a fact-specific inquiry done on a case-by-case basis. For example, a SNQ may be based solely on old art where the old art is being presented/viewed in a new light, or in a different way, as compared with its use in the earlier concluded examination(s) or review(s), in view of a material new argument or interpretation presented in the request.

Jump to MPEP SourceSNQ CriteriaPrior Consideration of ArtSubstantial New Question of Patentability
StatutoryInformativeAlways
[mpep-2816-02-71c8e21d2ea02ef11cb8cd70]
Substantial New Question from Old Art
Note:
A new question of patentability can arise even if based solely on previously considered prior art.

For example, the same question of patentability may already have been decided if the Office has previously considered, in an earlier concluded examination or review of the patent, the same question of patentability based on the same prior art. See In re Recreative Technologies, 83 F.3d 1394, 38 USPQ2d 1776 (Fed. Cir. 1996). Prior art which has been cited or considered by the Office is referred to, for the sake of expediency, as “old art,” as coined by the Federal Circuit in its decision in In re Hiniker, 150 F.3d 1362, 1365-66, 47 USPQ2d 1523, 1526 (Fed. Cir. 1998). Reliance on old art does not necessarily preclude the existence of a substantial new question of patentability (SNQ) that is based exclusively on that old art. See Public Law 107-273, 116 Stat. 1758, 1899-1906 (2002), which expanded the scope of what qualifies for a SNQ. Determinations on whether a SNQ exists in such an instance shall be based upon a fact-specific inquiry done on a case-by-case basis. For example, a SNQ may be based solely on old art where the old art is being presented/viewed in a new light, or in a different way, as compared with its use in the earlier concluded examination(s) or review(s), in view of a material new argument or interpretation presented in the request.

Jump to MPEP SourceSNQ CriteriaSubstantial New Question of PatentabilityEx Parte Reexamination
StatutoryPermittedAlways
[mpep-2816-02-0223c44994aaf98f10f15d69]
Substantial New Question of Patentability Determination by CRU
Note:
The Central Reexamination Unit decides whether a substantial new question of patentability exists, allowing for reexamination if confirmed.

The answer to the question of whether a substantial new question of patentability (SNQ) exists, and therefore whether reexamination may be ordered, is decided by the Central Reexamination Unit (CRU), under the authority delegated by the Director of the USPTO.

Jump to MPEP SourceSNQ CriteriaCentral Reexamination Unit ProcessingReexamination Order
StatutoryInformativeAlways
[mpep-2816-02-58a0a938e02199ebce8453f3]
Substantial New Question of Patentability Requirement
Note:
An item raises a substantial new question if a reasonable examiner would consider it important in deciding patentability.

An item of information raises a substantial new question of patentability where there is a substantial likelihood that a reasonable examiner would consider the item of information important in deciding whether or not the claim is patentable. For example, if the supplemental examination request states and explains that there may be a potential issue under 35 U.S.C. 101 regarding claim 5, the examiner would review the supplemental examination record to decide whether there is a substantial likelihood that a reasonable examiner would find the item of information (e.g., the discussion in the request regarding claim 5 and the potential issue under 35 U.S.C. 101) important in determining the patentability of claim 5. If the item of information would be considered important, then the examiner should find a substantial new question of patentability unless the same question of patentability has already been decided as to the claim in a final holding of invalidity by a federal court, decided by the Office in an earlier concluded examination or review, or raised to or by the Office in a pending reexamination or supplemental examination of the patent. For example, the same question of patentability may have already been decided by the Office where the examiner finds that the items of information, which are newly provided prior art patents or printed publications, are merely cumulative to prior art already fully considered by the Office in an earlier concluded examination or review of the claim.

Jump to MPEP SourceSNQ CriteriaRequest Content RequirementsSubstantial New Question of Patentability
StatutoryPermittedAlways
[mpep-2816-02-daa52ad4ede2d1402ac94403]
Substantial New Question of Patentability for Claim 5
Note:
Examiner must review supplemental examination record to determine if potential issue under 35 U.S.C. 101 regarding claim 5 raises a substantial new question of patentability.

An item of information raises a substantial new question of patentability where there is a substantial likelihood that a reasonable examiner would consider the item of information important in deciding whether or not the claim is patentable. For example, if the supplemental examination request states and explains that there may be a potential issue under 35 U.S.C. 101 regarding claim 5, the examiner would review the supplemental examination record to decide whether there is a substantial likelihood that a reasonable examiner would find the item of information (e.g., the discussion in the request regarding claim 5 and the potential issue under 35 U.S.C. 101) important in determining the patentability of claim 5. If the item of information would be considered important, then the examiner should find a substantial new question of patentability unless the same question of patentability has already been decided as to the claim in a final holding of invalidity by a federal court, decided by the Office in an earlier concluded examination or review, or raised to or by the Office in a pending reexamination or supplemental examination of the patent. For example, the same question of patentability may have already been decided by the Office where the examiner finds that the items of information, which are newly provided prior art patents or printed publications, are merely cumulative to prior art already fully considered by the Office in an earlier concluded examination or review of the claim.

Jump to MPEP SourceSNQ CriteriaRequest Content RequirementsSubstantial New Question of Patentability
StatutoryRecommendedAlways
[mpep-2816-02-39cf962d1becbef47664a0ef]
Requirement for Substantial New Question of Patentability
Note:
Examiner must find a new question of patentability if the information is important, unless it has been previously decided or raised in pending reexamination.

An item of information raises a substantial new question of patentability where there is a substantial likelihood that a reasonable examiner would consider the item of information important in deciding whether or not the claim is patentable. For example, if the supplemental examination request states and explains that there may be a potential issue under 35 U.S.C. 101 regarding claim 5, the examiner would review the supplemental examination record to decide whether there is a substantial likelihood that a reasonable examiner would find the item of information (e.g., the discussion in the request regarding claim 5 and the potential issue under 35 U.S.C. 101) important in determining the patentability of claim 5. If the item of information would be considered important, then the examiner should find a substantial new question of patentability unless the same question of patentability has already been decided as to the claim in a final holding of invalidity by a federal court, decided by the Office in an earlier concluded examination or review, or raised to or by the Office in a pending reexamination or supplemental examination of the patent. For example, the same question of patentability may have already been decided by the Office where the examiner finds that the items of information, which are newly provided prior art patents or printed publications, are merely cumulative to prior art already fully considered by the Office in an earlier concluded examination or review of the claim.

Jump to MPEP SourceSNQ CriteriaRequest Content RequirementsSubstantial New Question of Patentability
StatutoryProhibitedAlways
[mpep-2816-02-0bd83b0a70a0e2482665c96f]
Correction of Factual Information Does Not Raise SNQ
Note:
An item of information limited to a correction of factual details, alone, does not raise a substantial new question of patentability unless additional evidence is provided that affects claim patentability.

An item of information limited to a correction of factual information, alone, may not raise a substantial new question of patentability (SNQ). For example, an item of information limited to the correction of a missing or erroneous foreign priority or domestic benefit claim, alone, generally will not raise an issue of patentability. In order for the correction of a foreign priority or domestic benefit claim to raise a SNQ, the request for supplemental examination should also include one or more additional item(s) of information, such as one or more intervening reference(s), that would cause the patentability of the claims under, e.g., 35 U.S.C. 102 or 103, to depend upon the foreign priority or domestic benefit claim. In such an instance, the item of information may raise a SNQ, depending upon whether the foreign priority or domestic benefit claim is or is not corrected. Similarly, information limited to the correction of other factual information, such as the common ownership of the claims, alone, may not raise a SNQ, in the absence of one or more additional item(s) of information that would cause the patentability of the claims to depend upon the issue of common ownership. For this reason, the Office recommends that any request for supplemental examination that includes an item of information limited to the correction of factual information, should also include one or more additional item(s) of information that potentially provide evidence that the patentability of the claims depends upon the factual information to be corrected. See MPEP § 2809.01.

Jump to MPEP SourceSNQ CriteriaDenial – No SNQ RaisedSubstantial New Question of Patentability
StatutoryRecommendedAlways
[mpep-2816-02-65a4e8a02fe9d52c60c69d4d]
Correcting Effective Filing Date to Parent Patent’s Date
Note:
The patent owner can request the Office to correct the effective filing date of a claimed invention to match that of its parent patent, provided they support each claim with the parent's disclosure and address any intervening references.

The patent owner informs the Office, in a request for supplemental examination, that the effective filing date of the claimed invention in the patent to be examined should be corrected to reflect the earlier filing date of a parent patent. The request includes, as an item of information, a copy of the parent patent and a discussion within the body of the request explaining how each claim limitation of the patent to be examined is supported by the disclosure of the parent patent. The request also includes, as a second item of information, a copy of an intervening patent or printed publication that caused the patent owner to reconsider the effective filing date of the claims. In such a case, the examiner will first determine whether the second item of information, i.e., the intervening reference, would raise a substantial new question of patentability (SNQ) if the effective filing date of the claimed invention in the patent to be examined remains unchanged and is not corrected.

Jump to MPEP SourceSNQ CriteriaSubstantial New Question of PatentabilityEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2816-02-f3592a45eb453633235a20e7]
Claim Support from Parent Patent Required
Note:
The request must include a copy of the parent patent and explain how each claim limitation is supported by it.

The patent owner informs the Office, in a request for supplemental examination, that the effective filing date of the claimed invention in the patent to be examined should be corrected to reflect the earlier filing date of a parent patent. The request includes, as an item of information, a copy of the parent patent and a discussion within the body of the request explaining how each claim limitation of the patent to be examined is supported by the disclosure of the parent patent. The request also includes, as a second item of information, a copy of an intervening patent or printed publication that caused the patent owner to reconsider the effective filing date of the claims. In such a case, the examiner will first determine whether the second item of information, i.e., the intervening reference, would raise a substantial new question of patentability (SNQ) if the effective filing date of the claimed invention in the patent to be examined remains unchanged and is not corrected.

Jump to MPEP SourceSNQ CriteriaSubstantial New Question of PatentabilityEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2816-02-c444899fb7da0347606186a5]
Requirement for Including Intervening Patent or Publication in Request
Note:
The patent owner must include a copy of an intervening patent or printed publication that caused reconsideration of the effective filing date when requesting supplemental examination.

The patent owner informs the Office, in a request for supplemental examination, that the effective filing date of the claimed invention in the patent to be examined should be corrected to reflect the earlier filing date of a parent patent. The request includes, as an item of information, a copy of the parent patent and a discussion within the body of the request explaining how each claim limitation of the patent to be examined is supported by the disclosure of the parent patent. The request also includes, as a second item of information, a copy of an intervening patent or printed publication that caused the patent owner to reconsider the effective filing date of the claims. In such a case, the examiner will first determine whether the second item of information, i.e., the intervening reference, would raise a substantial new question of patentability (SNQ) if the effective filing date of the claimed invention in the patent to be examined remains unchanged and is not corrected.

Jump to MPEP SourceSNQ CriteriaSubstantial New Question of PatentabilityEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2816-02-98581ac64b1351cefcceb84a]
Examiner Must Determine If Intervening Reference Raises SNQ
Note:
The examiner must first determine if an intervening reference would raise a substantial new question of patentability if the effective filing date remains unchanged.

The patent owner informs the Office, in a request for supplemental examination, that the effective filing date of the claimed invention in the patent to be examined should be corrected to reflect the earlier filing date of a parent patent. The request includes, as an item of information, a copy of the parent patent and a discussion within the body of the request explaining how each claim limitation of the patent to be examined is supported by the disclosure of the parent patent. The request also includes, as a second item of information, a copy of an intervening patent or printed publication that caused the patent owner to reconsider the effective filing date of the claims. In such a case, the examiner will first determine whether the second item of information, i.e., the intervening reference, would raise a substantial new question of patentability (SNQ) if the effective filing date of the claimed invention in the patent to be examined remains unchanged and is not corrected.

Jump to MPEP SourceSNQ CriteriaSubstantial New Question of PatentabilityEx Parte Reexamination
StatutoryPermittedAlways
[mpep-2816-02-220a8d9e47c73ba63fe7c86a]
Reexamination Ordered for Substantial New Question of Patentability
Note:
If a substantial new question of patentability is raised, reexamination will be ordered and the domestic benefit claim may be added during the resulting proceeding.

If the examiner determines that a SNQ would be raised by the intervening reference if the effective filing date of the claimed invention in the patent to be examined remains unchanged and is not corrected, the examiner may, at the examiner’s option, then make a preliminary determination of whether the patent owner is entitled to the benefit of the earlier filing date by, for example, analyzing whether the claim limitations of the patent to be examined are supported by the disclosure of the parent patent. A final determination, however, that the patent owner is entitled to the benefit of the earlier filing date will, in general, only be made during any resulting reexamination proceeding, when, for example, any appropriate amendment to the specification, and the required petition for an unintentionally delayed benefit claim under 37 CFR 1.78, may be filed. See MPEP §§ 2813 – 2813.01. For a discussion of the explanation under 37 CFR 1.610(b)(5) that must be provided in such a case, see MPEP § 2811.01, subsection III. Where the examiner determines that a substantial new question of patentability is raised, reexamination will be ordered, and the domestic benefit claim may be added during the resulting reexamination proceeding. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP Source · 37 CFR 1.78SNQ CriteriaReexamination OrderSubstantial New Question of Patentability
StatutoryPermittedAlways
[mpep-2816-02-7b6bc4a7e66a2f74d87be99f]
Substantial New Question of Patentability Raised
Note:
The request may include unrelated information that raises a new patentability question, requiring reexamination if the examiner deems it necessary.

Alternatively, the request may include one or more additional items of information which are unrelated to the factual information to be corrected, but which raise a substantial new question of patentability (SNQ). For example, the patent owner may include, in addition to information limited to the correction of a domestic benefit claim, an item of information such as a reference patent that would qualify as prior art under 35 U.S.C. 102 even if the domestic benefit claim is corrected. If the examiner determines that a SNQ is raised in the request, the examiner may, at the examiner’s option, make a preliminary determination of whether the patent owner is entitled to the benefit of the corrected benefit claim, as discussed previously. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. See MPEP § 2809.01 and MPEP § 2816.03, subsection II. If the examiner determines that no SNQ is raised by the additional item(s) of information, the information limited to a correction of the domestic benefit claim will not be further considered on the merits. A supplemental examination certificate, which indicates that no SNQ is raised by the request, will be issued, and the benefit claim will not be corrected.

Jump to MPEP SourceSNQ CriteriaSubstantial New Question of PatentabilitySupplemental Examination Request
StatutoryPermittedAlways
[mpep-2816-02-9fba3c42118ddada5824dfa0]
Substantial New Question of Patentability Determination
Note:
This rule outlines the criteria for determining whether a new question of patentability has arisen in an ex parte reexamination.

See also MPEP § 2242, subsections II and III, for more information on how a substantial new question of patentability may be determined in specific situations.

Jump to MPEP SourceSNQ CriteriaSubstantial New Question of PatentabilityEx Parte Reexamination
Topic

Benefit Claim in ADS

12 rules
StatutoryInformativeAlways
[mpep-2816-02-b6fe2f50fc37f2665cf683dd]
Correction of Factual Information Does Not Raise SNQ Generally
Note:
An item of information limited to correcting factual details, such as foreign priority or domestic benefit claims, generally will not raise a substantial new question of patentability unless additional evidence is provided that affects claim patentability.

An item of information limited to a correction of factual information, alone, may not raise a substantial new question of patentability (SNQ). For example, an item of information limited to the correction of a missing or erroneous foreign priority or domestic benefit claim, alone, generally will not raise an issue of patentability. In order for the correction of a foreign priority or domestic benefit claim to raise a SNQ, the request for supplemental examination should also include one or more additional item(s) of information, such as one or more intervening reference(s), that would cause the patentability of the claims under, e.g., 35 U.S.C. 102 or 103, to depend upon the foreign priority or domestic benefit claim. In such an instance, the item of information may raise a SNQ, depending upon whether the foreign priority or domestic benefit claim is or is not corrected. Similarly, information limited to the correction of other factual information, such as the common ownership of the claims, alone, may not raise a SNQ, in the absence of one or more additional item(s) of information that would cause the patentability of the claims to depend upon the issue of common ownership. For this reason, the Office recommends that any request for supplemental examination that includes an item of information limited to the correction of factual information, should also include one or more additional item(s) of information that potentially provide evidence that the patentability of the claims depends upon the factual information to be corrected. See MPEP § 2809.01.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsDenial – No SNQ Raised
StatutoryRecommendedAlways
[mpep-2816-02-621bbc88036605c8091df307]
Correction of Foreign Priority or Domestic Benefit Claim Requires Additional Information
Note:
To raise a substantial new question of patentability, the request for supplemental examination must include additional information beyond correcting a foreign priority or domestic benefit claim.

An item of information limited to a correction of factual information, alone, may not raise a substantial new question of patentability (SNQ). For example, an item of information limited to the correction of a missing or erroneous foreign priority or domestic benefit claim, alone, generally will not raise an issue of patentability. In order for the correction of a foreign priority or domestic benefit claim to raise a SNQ, the request for supplemental examination should also include one or more additional item(s) of information, such as one or more intervening reference(s), that would cause the patentability of the claims under, e.g., 35 U.S.C. 102 or 103, to depend upon the foreign priority or domestic benefit claim. In such an instance, the item of information may raise a SNQ, depending upon whether the foreign priority or domestic benefit claim is or is not corrected. Similarly, information limited to the correction of other factual information, such as the common ownership of the claims, alone, may not raise a SNQ, in the absence of one or more additional item(s) of information that would cause the patentability of the claims to depend upon the issue of common ownership. For this reason, the Office recommends that any request for supplemental examination that includes an item of information limited to the correction of factual information, should also include one or more additional item(s) of information that potentially provide evidence that the patentability of the claims depends upon the factual information to be corrected. See MPEP § 2809.01.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsReexamination Order
StatutoryProhibitedAlways
[mpep-2816-02-6118432fc51f198b2bf2e1da]
Correction of Factual Information Does Not Raise SNQ Without Additional Evidence
Note:
A request for supplemental examination with a correction of factual information alone does not raise a substantial new question of patentability unless additional evidence is provided that the claims' patentability depends on the corrected information.

An item of information limited to a correction of factual information, alone, may not raise a substantial new question of patentability (SNQ). For example, an item of information limited to the correction of a missing or erroneous foreign priority or domestic benefit claim, alone, generally will not raise an issue of patentability. In order for the correction of a foreign priority or domestic benefit claim to raise a SNQ, the request for supplemental examination should also include one or more additional item(s) of information, such as one or more intervening reference(s), that would cause the patentability of the claims under, e.g., 35 U.S.C. 102 or 103, to depend upon the foreign priority or domestic benefit claim. In such an instance, the item of information may raise a SNQ, depending upon whether the foreign priority or domestic benefit claim is or is not corrected. Similarly, information limited to the correction of other factual information, such as the common ownership of the claims, alone, may not raise a SNQ, in the absence of one or more additional item(s) of information that would cause the patentability of the claims to depend upon the issue of common ownership. For this reason, the Office recommends that any request for supplemental examination that includes an item of information limited to the correction of factual information, should also include one or more additional item(s) of information that potentially provide evidence that the patentability of the claims depends upon the factual information to be corrected. See MPEP § 2809.01.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsDenial – No SNQ Raised
StatutoryInformativeAlways
[mpep-2816-02-1bdc2baa3d13d8a5ab5da7c5]
Examiner Will Not Consider Missing Domestic Benefit Claim
Note:
If the examiner determines that an intervening reference does not raise a substantial new question of patentability, they will not further consider the missing domestic benefit claim and will issue a supplemental examination certificate indicating no such question is raised.

If the examiner determines that the intervening reference does not raise a substantial new question of patentability even if the effective filing date of the claimed invention in the patent to be examined remains unchanged and is not corrected, then the item of information limited to the correction of the missing domestic benefit claim, i.e., the parent patent and the discussion within the body of the request showing how each claim limitation is supported by the disclosure of the parent patent, will not be further considered on the merits. The examiner will issue a supplemental examination certificate indicating that no substantial new question of patentability is raised by the request, and the domestic benefit claim will not be added to the patent. See MPEP § 2816.03, subsection II.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsSNQ Criteria
StatutoryInformativeAlways
[mpep-2816-02-fb98f9d290fc7f6d16c8ac2f]
No New Question of Patentability Raised by Request
Note:
The examiner will issue a supplemental examination certificate indicating that no new patentability issues are raised by the request and the domestic benefit claim will not be added to the patent.

If the examiner determines that the intervening reference does not raise a substantial new question of patentability even if the effective filing date of the claimed invention in the patent to be examined remains unchanged and is not corrected, then the item of information limited to the correction of the missing domestic benefit claim, i.e., the parent patent and the discussion within the body of the request showing how each claim limitation is supported by the disclosure of the parent patent, will not be further considered on the merits. The examiner will issue a supplemental examination certificate indicating that no substantial new question of patentability is raised by the request, and the domestic benefit claim will not be added to the patent. See MPEP § 2816.03, subsection II.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsReexamination Certificate
StatutoryInformativeAlways
[mpep-2816-02-3c0733fa9de49a3a35fb1a24]
Request for Deletion of Domestic Benefit Claim
Note:
Patent owners can request deletion of an earlier domestic benefit claim, which may affect the effective filing date and raise a substantial new question of patentability.

The patent owner, in a request for supplemental examination, requests the deletion of an earlier-obtained domestic benefit claim. The request includes, as an item of information, an intervening reference which caused the patent owner to reconsider the effective filing date of the claims, and which would pre-date the effective filing date of the claimed invention in the patent to be examined, if the domestic benefit claim is deleted. The request also includes a detailed explanation of how the intervening reference may be applied to the patent claims if the domestic benefit claim is deleted. See MPEP § 2811.01, subsection III. In this case, the examiner would determine whether the intervening reference would raise a substantial new question of patentability (SNQ) affecting the identified claims of the patent if the domestic benefit claim is deleted and the effective filing date of the claimed invention in the patent to be examined is corrected to an appropriate later filing date. If the examiner determines that the intervening reference does not raise a SNQ, then the examiner will issue a supplemental examination certificate indicating that no SNQ is raised by the request. If the examiner determines that the intervening reference raises a SNQ, then the examiner will issue a supplemental examination certificate indicating that a SNQ affecting at least one claim of the patent is raised in the request. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. Patent owners are reminded, however, that the deletion of the domestic benefit claim in this example will not operate to extend the term of the patent. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsDomestic Benefit Claims (35 U.S.C. 120/121)
StatutoryInformativeAlways
[mpep-2816-02-d43461693394dd8e89375a93]
Requirement for Deletion of Domestic Benefit Claim
Note:
The patent owner must request the deletion of an earlier-obtained domestic benefit claim if new information suggests a different effective filing date.

The patent owner, in a request for supplemental examination, requests the deletion of an earlier-obtained domestic benefit claim. The request includes, as an item of information, an intervening reference which caused the patent owner to reconsider the effective filing date of the claims, and which would pre-date the effective filing date of the claimed invention in the patent to be examined, if the domestic benefit claim is deleted. The request also includes a detailed explanation of how the intervening reference may be applied to the patent claims if the domestic benefit claim is deleted. See MPEP § 2811.01, subsection III. In this case, the examiner would determine whether the intervening reference would raise a substantial new question of patentability (SNQ) affecting the identified claims of the patent if the domestic benefit claim is deleted and the effective filing date of the claimed invention in the patent to be examined is corrected to an appropriate later filing date. If the examiner determines that the intervening reference does not raise a SNQ, then the examiner will issue a supplemental examination certificate indicating that no SNQ is raised by the request. If the examiner determines that the intervening reference raises a SNQ, then the examiner will issue a supplemental examination certificate indicating that a SNQ affecting at least one claim of the patent is raised in the request. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. Patent owners are reminded, however, that the deletion of the domestic benefit claim in this example will not operate to extend the term of the patent. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsDomestic Benefit Claims (35 U.S.C. 120/121)
StatutoryPermittedAlways
[mpep-2816-02-4be553365e07fa0e9ed4f7a6]
Intervening Reference for Effective Filing Date
Note:
Explains how an intervening reference impacts patent claims if a domestic benefit claim is deleted, affecting the effective filing date and potential SNQ.

The patent owner, in a request for supplemental examination, requests the deletion of an earlier-obtained domestic benefit claim. The request includes, as an item of information, an intervening reference which caused the patent owner to reconsider the effective filing date of the claims, and which would pre-date the effective filing date of the claimed invention in the patent to be examined, if the domestic benefit claim is deleted. The request also includes a detailed explanation of how the intervening reference may be applied to the patent claims if the domestic benefit claim is deleted. See MPEP § 2811.01, subsection III. In this case, the examiner would determine whether the intervening reference would raise a substantial new question of patentability (SNQ) affecting the identified claims of the patent if the domestic benefit claim is deleted and the effective filing date of the claimed invention in the patent to be examined is corrected to an appropriate later filing date. If the examiner determines that the intervening reference does not raise a SNQ, then the examiner will issue a supplemental examination certificate indicating that no SNQ is raised by the request. If the examiner determines that the intervening reference raises a SNQ, then the examiner will issue a supplemental examination certificate indicating that a SNQ affecting at least one claim of the patent is raised in the request. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. Patent owners are reminded, however, that the deletion of the domestic benefit claim in this example will not operate to extend the term of the patent. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsDomestic Benefit Claims (35 U.S.C. 120/121)
StatutoryInformativeAlways
[mpep-2816-02-e914d8d621b06260c4bd2d9d]
Determining SNQ from Intervening Reference After Deleting Domestic Benefit Claim
Note:
The examiner must decide if an intervening reference raises a substantial new question of patentability affecting claims when the domestic benefit claim is deleted and the effective filing date is corrected.

The patent owner, in a request for supplemental examination, requests the deletion of an earlier-obtained domestic benefit claim. The request includes, as an item of information, an intervening reference which caused the patent owner to reconsider the effective filing date of the claims, and which would pre-date the effective filing date of the claimed invention in the patent to be examined, if the domestic benefit claim is deleted. The request also includes a detailed explanation of how the intervening reference may be applied to the patent claims if the domestic benefit claim is deleted. See MPEP § 2811.01, subsection III. In this case, the examiner would determine whether the intervening reference would raise a substantial new question of patentability (SNQ) affecting the identified claims of the patent if the domestic benefit claim is deleted and the effective filing date of the claimed invention in the patent to be examined is corrected to an appropriate later filing date. If the examiner determines that the intervening reference does not raise a SNQ, then the examiner will issue a supplemental examination certificate indicating that no SNQ is raised by the request. If the examiner determines that the intervening reference raises a SNQ, then the examiner will issue a supplemental examination certificate indicating that a SNQ affecting at least one claim of the patent is raised in the request. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. Patent owners are reminded, however, that the deletion of the domestic benefit claim in this example will not operate to extend the term of the patent. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsSNQ Criteria
StatutoryPermittedAlways
[mpep-2816-02-1d3c5f6a7985ea25fa671181]
Domestic Benefit Claim May Be Corrected During Reexamination
Note:
The patent owner can request reexamination and correction of the domestic benefit claim if an intervening reference raises a substantial new question of patentability.

The patent owner, in a request for supplemental examination, requests the deletion of an earlier-obtained domestic benefit claim. The request includes, as an item of information, an intervening reference which caused the patent owner to reconsider the effective filing date of the claims, and which would pre-date the effective filing date of the claimed invention in the patent to be examined, if the domestic benefit claim is deleted. The request also includes a detailed explanation of how the intervening reference may be applied to the patent claims if the domestic benefit claim is deleted. See MPEP § 2811.01, subsection III. In this case, the examiner would determine whether the intervening reference would raise a substantial new question of patentability (SNQ) affecting the identified claims of the patent if the domestic benefit claim is deleted and the effective filing date of the claimed invention in the patent to be examined is corrected to an appropriate later filing date. If the examiner determines that the intervening reference does not raise a SNQ, then the examiner will issue a supplemental examination certificate indicating that no SNQ is raised by the request. If the examiner determines that the intervening reference raises a SNQ, then the examiner will issue a supplemental examination certificate indicating that a SNQ affecting at least one claim of the patent is raised in the request. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. Patent owners are reminded, however, that the deletion of the domestic benefit claim in this example will not operate to extend the term of the patent. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsReexamination Order
StatutoryInformativeAlways
[mpep-2816-02-96f48810b8f59ccd6053b51d]
Deletion of Domestic Benefit Claim Does Not Extend Patent Term
Note:
Patent owners are reminded that deleting a domestic benefit claim will not extend the patent term, even if it affects the effective filing date and raises a substantial new question of patentability.

The patent owner, in a request for supplemental examination, requests the deletion of an earlier-obtained domestic benefit claim. The request includes, as an item of information, an intervening reference which caused the patent owner to reconsider the effective filing date of the claims, and which would pre-date the effective filing date of the claimed invention in the patent to be examined, if the domestic benefit claim is deleted. The request also includes a detailed explanation of how the intervening reference may be applied to the patent claims if the domestic benefit claim is deleted. See MPEP § 2811.01, subsection III. In this case, the examiner would determine whether the intervening reference would raise a substantial new question of patentability (SNQ) affecting the identified claims of the patent if the domestic benefit claim is deleted and the effective filing date of the claimed invention in the patent to be examined is corrected to an appropriate later filing date. If the examiner determines that the intervening reference does not raise a SNQ, then the examiner will issue a supplemental examination certificate indicating that no SNQ is raised by the request. If the examiner determines that the intervening reference raises a SNQ, then the examiner will issue a supplemental examination certificate indicating that a SNQ affecting at least one claim of the patent is raised in the request. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. Patent owners are reminded, however, that the deletion of the domestic benefit claim in this example will not operate to extend the term of the patent. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsDomestic Benefit Claims (35 U.S.C. 120/121)
StatutoryRecommendedAlways
[mpep-2816-02-d7157f41be03d56155f16c1e]
Requirement for Correcting Erroneous Domestic Benefit Claim
Note:
The rule requires that if the request only includes correction of an erroneous domestic benefit claim, it must be supported by a parent patent and show how each claim limitation is supported. If no intervening art or other information is provided, the domestic benefit claim does not raise a statutory non-obviousness (SNQ) issue.

For example, if the request only includes one item of information, and that item of information is limited to the correction of an erroneous domestic benefit claim, such as, e.g., a copy of a parent patent and a discussion within the body of the request showing how each claim limitation is supported by the disclosure of the parent patent, then the reasons for SNQ determination should indicate that the information regarding the domestic benefit claim did not raise a SNQ because the patent owner did not include with the request any intervening art or other information that caused the patentability of the claim(s) to depend upon the domestic benefit claim. See MPEP § 2809.01.

Jump to MPEP SourceBenefit Claim in ADSContinuation Benefit ClaimsDenial – No SNQ Raised
Topic

Prior Consideration of Art

5 rules
StatutoryPermittedAlways
[mpep-2816-02-08a70ea8799901aa0f48656e]
Same Question of Patentability Previously Decided
Note:
If the Office has previously considered the same question of patentability based on the same prior art, it may have already been decided.

For example, the same question of patentability may already have been decided if the Office has previously considered, in an earlier concluded examination or review of the patent, the same question of patentability based on the same prior art. See In re Recreative Technologies, 83 F.3d 1394, 38 USPQ2d 1776 (Fed. Cir. 1996). Prior art which has been cited or considered by the Office is referred to, for the sake of expediency, as “old art,” as coined by the Federal Circuit in its decision in In re Hiniker, 150 F.3d 1362, 1365-66, 47 USPQ2d 1523, 1526 (Fed. Cir. 1998). Reliance on old art does not necessarily preclude the existence of a substantial new question of patentability (SNQ) that is based exclusively on that old art. See Public Law 107-273, 116 Stat. 1758, 1899-1906 (2002), which expanded the scope of what qualifies for a SNQ. Determinations on whether a SNQ exists in such an instance shall be based upon a fact-specific inquiry done on a case-by-case basis. For example, a SNQ may be based solely on old art where the old art is being presented/viewed in a new light, or in a different way, as compared with its use in the earlier concluded examination(s) or review(s), in view of a material new argument or interpretation presented in the request.

Jump to MPEP SourcePrior Consideration of ArtSubstantial New Question of PatentabilitySNQ Criteria
StatutoryInformativeAlways
[mpep-2816-02-e7d181ea5294f009f0d18012]
Prior Art Considered by Office Is Called Old Art
Note:
This rule defines that prior art previously considered by the Office is referred to as 'old art' for expediency, as established in In re Hiniker.

For example, the same question of patentability may already have been decided if the Office has previously considered, in an earlier concluded examination or review of the patent, the same question of patentability based on the same prior art. See In re Recreative Technologies, 83 F.3d 1394, 38 USPQ2d 1776 (Fed. Cir. 1996). Prior art which has been cited or considered by the Office is referred to, for the sake of expediency, as “old art,” as coined by the Federal Circuit in its decision in In re Hiniker, 150 F.3d 1362, 1365-66, 47 USPQ2d 1523, 1526 (Fed. Cir. 1998). Reliance on old art does not necessarily preclude the existence of a substantial new question of patentability (SNQ) that is based exclusively on that old art. See Public Law 107-273, 116 Stat. 1758, 1899-1906 (2002), which expanded the scope of what qualifies for a SNQ. Determinations on whether a SNQ exists in such an instance shall be based upon a fact-specific inquiry done on a case-by-case basis. For example, a SNQ may be based solely on old art where the old art is being presented/viewed in a new light, or in a different way, as compared with its use in the earlier concluded examination(s) or review(s), in view of a material new argument or interpretation presented in the request.

Jump to MPEP SourcePrior Consideration of ArtSNQ CriteriaSubstantial New Question of Patentability
StatutoryPermittedAlways
[mpep-2816-02-7de4ec86caa9060f9c4d48c6]
Substantial New Question Based on Old Art in Different Context
Note:
A substantial new question of patentability can arise when old art is presented in a new light or with a different interpretation, based on a material new argument in the request.

For example, the same question of patentability may already have been decided if the Office has previously considered, in an earlier concluded examination or review of the patent, the same question of patentability based on the same prior art. See In re Recreative Technologies, 83 F.3d 1394, 38 USPQ2d 1776 (Fed. Cir. 1996). Prior art which has been cited or considered by the Office is referred to, for the sake of expediency, as “old art,” as coined by the Federal Circuit in its decision in In re Hiniker, 150 F.3d 1362, 1365-66, 47 USPQ2d 1523, 1526 (Fed. Cir. 1998). Reliance on old art does not necessarily preclude the existence of a substantial new question of patentability (SNQ) that is based exclusively on that old art. See Public Law 107-273, 116 Stat. 1758, 1899-1906 (2002), which expanded the scope of what qualifies for a SNQ. Determinations on whether a SNQ exists in such an instance shall be based upon a fact-specific inquiry done on a case-by-case basis. For example, a SNQ may be based solely on old art where the old art is being presented/viewed in a new light, or in a different way, as compared with its use in the earlier concluded examination(s) or review(s), in view of a material new argument or interpretation presented in the request.

Jump to MPEP SourcePrior Consideration of ArtSubstantial New Question of PatentabilityEx Parte Reexamination
StatutoryPermittedAlways
[mpep-2816-02-56dc4abbd8c0700c2dfc997b]
Substantial New Question of Patentability Must Be Based on Newly Provided Prior Art
Note:
The examiner must find a substantial new question of patentability based on newly provided prior art that is not merely cumulative to previously considered art.

An item of information raises a substantial new question of patentability where there is a substantial likelihood that a reasonable examiner would consider the item of information important in deciding whether or not the claim is patentable. For example, if the supplemental examination request states and explains that there may be a potential issue under 35 U.S.C. 101 regarding claim 5, the examiner would review the supplemental examination record to decide whether there is a substantial likelihood that a reasonable examiner would find the item of information (e.g., the discussion in the request regarding claim 5 and the potential issue under 35 U.S.C. 101) important in determining the patentability of claim 5. If the item of information would be considered important, then the examiner should find a substantial new question of patentability unless the same question of patentability has already been decided as to the claim in a final holding of invalidity by a federal court, decided by the Office in an earlier concluded examination or review, or raised to or by the Office in a pending reexamination or supplemental examination of the patent. For example, the same question of patentability may have already been decided by the Office where the examiner finds that the items of information, which are newly provided prior art patents or printed publications, are merely cumulative to prior art already fully considered by the Office in an earlier concluded examination or review of the claim.

Jump to MPEP SourcePrior Consideration of ArtRequest Content RequirementsSubstantial New Question of Patentability
StatutoryPermittedAlways
[mpep-2816-02-9427ae09eceb4bd2b96516e7]
Patent Owner May Include Prior Art References
Note:
The patent owner can submit additional information that qualifies as prior art, even if the domestic benefit claim is corrected.

Alternatively, the request may include one or more additional items of information which are unrelated to the factual information to be corrected, but which raise a substantial new question of patentability (SNQ). For example, the patent owner may include, in addition to information limited to the correction of a domestic benefit claim, an item of information such as a reference patent that would qualify as prior art under 35 U.S.C. 102 even if the domestic benefit claim is corrected. If the examiner determines that a SNQ is raised in the request, the examiner may, at the examiner’s option, make a preliminary determination of whether the patent owner is entitled to the benefit of the corrected benefit claim, as discussed previously. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. See MPEP § 2809.01 and MPEP § 2816.03, subsection II. If the examiner determines that no SNQ is raised by the additional item(s) of information, the information limited to a correction of the domestic benefit claim will not be further considered on the merits. A supplemental examination certificate, which indicates that no SNQ is raised by the request, will be issued, and the benefit claim will not be corrected.

Jump to MPEP SourcePrior Consideration of ArtRequest Content RequirementsReexamination Certificate
Topic

Substantial New Question of Patentability

4 rules
StatutoryInformativeAlways
[mpep-2816-02-87c5feb15501b24908c87ac4]
Substantial New Question of Patentability Based on Old Art
Note:
Determines whether a new argument or interpretation presents a different substantial question of patentability based on previously considered prior art.

For example, the same question of patentability may already have been decided if the Office has previously considered, in an earlier concluded examination or review of the patent, the same question of patentability based on the same prior art. See In re Recreative Technologies, 83 F.3d 1394, 38 USPQ2d 1776 (Fed. Cir. 1996). Prior art which has been cited or considered by the Office is referred to, for the sake of expediency, as “old art,” as coined by the Federal Circuit in its decision in In re Hiniker, 150 F.3d 1362, 1365-66, 47 USPQ2d 1523, 1526 (Fed. Cir. 1998). Reliance on old art does not necessarily preclude the existence of a substantial new question of patentability (SNQ) that is based exclusively on that old art. See Public Law 107-273, 116 Stat. 1758, 1899-1906 (2002), which expanded the scope of what qualifies for a SNQ. Determinations on whether a SNQ exists in such an instance shall be based upon a fact-specific inquiry done on a case-by-case basis. For example, a SNQ may be based solely on old art where the old art is being presented/viewed in a new light, or in a different way, as compared with its use in the earlier concluded examination(s) or review(s), in view of a material new argument or interpretation presented in the request.

Jump to MPEP SourceSubstantial New Question of PatentabilityEx Parte ReexaminationSNQ Criteria
StatutoryRequiredAlways
[mpep-2816-02-f60a32d3352b93939e3e27b6]
Determining Substantial New Question of Patentability on a Case-by-Case Basis
Note:
Determine if a substantial new question of patentability exists by conducting a fact-specific inquiry for each case.

For example, the same question of patentability may already have been decided if the Office has previously considered, in an earlier concluded examination or review of the patent, the same question of patentability based on the same prior art. See In re Recreative Technologies, 83 F.3d 1394, 38 USPQ2d 1776 (Fed. Cir. 1996). Prior art which has been cited or considered by the Office is referred to, for the sake of expediency, as “old art,” as coined by the Federal Circuit in its decision in In re Hiniker, 150 F.3d 1362, 1365-66, 47 USPQ2d 1523, 1526 (Fed. Cir. 1998). Reliance on old art does not necessarily preclude the existence of a substantial new question of patentability (SNQ) that is based exclusively on that old art. See Public Law 107-273, 116 Stat. 1758, 1899-1906 (2002), which expanded the scope of what qualifies for a SNQ. Determinations on whether a SNQ exists in such an instance shall be based upon a fact-specific inquiry done on a case-by-case basis. For example, a SNQ may be based solely on old art where the old art is being presented/viewed in a new light, or in a different way, as compared with its use in the earlier concluded examination(s) or review(s), in view of a material new argument or interpretation presented in the request.

Jump to MPEP SourceSubstantial New Question of PatentabilityEx Parte ReexaminationSNQ Criteria
StatutoryRecommendedAlways
[mpep-2816-02-c75e662466a8d6fb06e875ad]
Request for Supplemental Examination Must Include Additional Evidence
Note:
A request for supplemental examination that corrects factual information must also include additional evidence to potentially affect patentability.

An item of information limited to a correction of factual information, alone, may not raise a substantial new question of patentability (SNQ). For example, an item of information limited to the correction of a missing or erroneous foreign priority or domestic benefit claim, alone, generally will not raise an issue of patentability. In order for the correction of a foreign priority or domestic benefit claim to raise a SNQ, the request for supplemental examination should also include one or more additional item(s) of information, such as one or more intervening reference(s), that would cause the patentability of the claims under, e.g., 35 U.S.C. 102 or 103, to depend upon the foreign priority or domestic benefit claim. In such an instance, the item of information may raise a SNQ, depending upon whether the foreign priority or domestic benefit claim is or is not corrected. Similarly, information limited to the correction of other factual information, such as the common ownership of the claims, alone, may not raise a SNQ, in the absence of one or more additional item(s) of information that would cause the patentability of the claims to depend upon the issue of common ownership. For this reason, the Office recommends that any request for supplemental examination that includes an item of information limited to the correction of factual information, should also include one or more additional item(s) of information that potentially provide evidence that the patentability of the claims depends upon the factual information to be corrected. See MPEP § 2809.01.

Jump to MPEP SourceSubstantial New Question of PatentabilityBenefit Claim in ADSContinuation Benefit Claims
StatutoryPermittedAlways
[mpep-2816-02-118b473483a6d3519f44d8f0]
Examiner May Determine Claim Support from Parent Patent
Note:
The examiner can decide if the claims are supported by the parent patent's disclosure, especially when a substantial new question of patentability is raised by an intervening reference.

If the examiner determines that a SNQ would be raised by the intervening reference if the effective filing date of the claimed invention in the patent to be examined remains unchanged and is not corrected, the examiner may, at the examiner’s option, then make a preliminary determination of whether the patent owner is entitled to the benefit of the earlier filing date by, for example, analyzing whether the claim limitations of the patent to be examined are supported by the disclosure of the parent patent. A final determination, however, that the patent owner is entitled to the benefit of the earlier filing date will, in general, only be made during any resulting reexamination proceeding, when, for example, any appropriate amendment to the specification, and the required petition for an unintentionally delayed benefit claim under 37 CFR 1.78, may be filed. See MPEP §§ 2813 – 2813.01. For a discussion of the explanation under 37 CFR 1.610(b)(5) that must be provided in such a case, see MPEP § 2811.01, subsection III. Where the examiner determines that a substantial new question of patentability is raised, reexamination will be ordered, and the domestic benefit claim may be added during the resulting reexamination proceeding. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP Source · 37 CFR 1.78Substantial New Question of PatentabilityEx Parte ReexaminationSNQ Criteria
Topic

Reexamination Certificate

3 rules
StatutoryInformativeAlways
[mpep-2816-02-48ec16000950e17b37020c07]
No SNQ Raised by Request
Note:
If the examiner determines that an intervening reference does not raise a substantial new question of patentability, they will issue a supplemental examination certificate indicating no SNQ is raised.

The patent owner, in a request for supplemental examination, requests the deletion of an earlier-obtained domestic benefit claim. The request includes, as an item of information, an intervening reference which caused the patent owner to reconsider the effective filing date of the claims, and which would pre-date the effective filing date of the claimed invention in the patent to be examined, if the domestic benefit claim is deleted. The request also includes a detailed explanation of how the intervening reference may be applied to the patent claims if the domestic benefit claim is deleted. See MPEP § 2811.01, subsection III. In this case, the examiner would determine whether the intervening reference would raise a substantial new question of patentability (SNQ) affecting the identified claims of the patent if the domestic benefit claim is deleted and the effective filing date of the claimed invention in the patent to be examined is corrected to an appropriate later filing date. If the examiner determines that the intervening reference does not raise a SNQ, then the examiner will issue a supplemental examination certificate indicating that no SNQ is raised by the request. If the examiner determines that the intervening reference raises a SNQ, then the examiner will issue a supplemental examination certificate indicating that a SNQ affecting at least one claim of the patent is raised in the request. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. Patent owners are reminded, however, that the deletion of the domestic benefit claim in this example will not operate to extend the term of the patent. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP SourceReexamination CertificateDenial – No SNQ RaisedConclusion of Ex Parte Reexamination
StatutoryInformativeAlways
[mpep-2816-02-9cc8b5f098e00b92121f0148]
Supplemental Exam Cert for SNQ on Patent Claims
Note:
If an intervening reference raises a substantial new question of patentability affecting at least one claim, the examiner will issue a supplemental examination certificate indicating this and order reexamination.

The patent owner, in a request for supplemental examination, requests the deletion of an earlier-obtained domestic benefit claim. The request includes, as an item of information, an intervening reference which caused the patent owner to reconsider the effective filing date of the claims, and which would pre-date the effective filing date of the claimed invention in the patent to be examined, if the domestic benefit claim is deleted. The request also includes a detailed explanation of how the intervening reference may be applied to the patent claims if the domestic benefit claim is deleted. See MPEP § 2811.01, subsection III. In this case, the examiner would determine whether the intervening reference would raise a substantial new question of patentability (SNQ) affecting the identified claims of the patent if the domestic benefit claim is deleted and the effective filing date of the claimed invention in the patent to be examined is corrected to an appropriate later filing date. If the examiner determines that the intervening reference does not raise a SNQ, then the examiner will issue a supplemental examination certificate indicating that no SNQ is raised by the request. If the examiner determines that the intervening reference raises a SNQ, then the examiner will issue a supplemental examination certificate indicating that a SNQ affecting at least one claim of the patent is raised in the request. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. Patent owners are reminded, however, that the deletion of the domestic benefit claim in this example will not operate to extend the term of the patent. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP SourceReexamination CertificateSNQ CriteriaConclusion of Ex Parte Reexamination
StatutoryInformativeAlways
[mpep-2816-02-a40e3414d19878971a0d72b1]
No SNQ Raised by Request
Note:
A supplemental examination certificate is issued indicating no substantial new question of patentability is raised, and the benefit claim will not be corrected.

Alternatively, the request may include one or more additional items of information which are unrelated to the factual information to be corrected, but which raise a substantial new question of patentability (SNQ). For example, the patent owner may include, in addition to information limited to the correction of a domestic benefit claim, an item of information such as a reference patent that would qualify as prior art under 35 U.S.C. 102 even if the domestic benefit claim is corrected. If the examiner determines that a SNQ is raised in the request, the examiner may, at the examiner’s option, make a preliminary determination of whether the patent owner is entitled to the benefit of the corrected benefit claim, as discussed previously. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. See MPEP § 2809.01 and MPEP § 2816.03, subsection II. If the examiner determines that no SNQ is raised by the additional item(s) of information, the information limited to a correction of the domestic benefit claim will not be further considered on the merits. A supplemental examination certificate, which indicates that no SNQ is raised by the request, will be issued, and the benefit claim will not be corrected.

Jump to MPEP SourceReexamination CertificateRequest Content RequirementsConclusion of Ex Parte Reexamination
Topic

Request Content Requirements

3 rules
StatutoryPermittedAlways
[mpep-2816-02-8da428f067f4cf07937af915]
Examiner May Determine Patent Owner’s Benefit Claim Entitlement If SNQ Raised
Note:
The examiner has the option to decide if the patent owner is entitled to a corrected benefit claim when a substantial new question of patentability is raised in the request.

Alternatively, the request may include one or more additional items of information which are unrelated to the factual information to be corrected, but which raise a substantial new question of patentability (SNQ). For example, the patent owner may include, in addition to information limited to the correction of a domestic benefit claim, an item of information such as a reference patent that would qualify as prior art under 35 U.S.C. 102 even if the domestic benefit claim is corrected. If the examiner determines that a SNQ is raised in the request, the examiner may, at the examiner’s option, make a preliminary determination of whether the patent owner is entitled to the benefit of the corrected benefit claim, as discussed previously. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. See MPEP § 2809.01 and MPEP § 2816.03, subsection II. If the examiner determines that no SNQ is raised by the additional item(s) of information, the information limited to a correction of the domestic benefit claim will not be further considered on the merits. A supplemental examination certificate, which indicates that no SNQ is raised by the request, will be issued, and the benefit claim will not be corrected.

Jump to MPEP SourceRequest Content RequirementsSubstantial New Question of PatentabilityEx Parte Reexamination
StatutoryPermittedAlways
[mpep-2816-02-8732f8061ea8d7ed0ce0168c]
Domestic Benefit Claim Can Be Corrected During Reexamination
Note:
The domestic benefit claim may be corrected during the reexamination proceeding if requested, along with any additional information that raises a substantial new question of patentability.

Alternatively, the request may include one or more additional items of information which are unrelated to the factual information to be corrected, but which raise a substantial new question of patentability (SNQ). For example, the patent owner may include, in addition to information limited to the correction of a domestic benefit claim, an item of information such as a reference patent that would qualify as prior art under 35 U.S.C. 102 even if the domestic benefit claim is corrected. If the examiner determines that a SNQ is raised in the request, the examiner may, at the examiner’s option, make a preliminary determination of whether the patent owner is entitled to the benefit of the corrected benefit claim, as discussed previously. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. See MPEP § 2809.01 and MPEP § 2816.03, subsection II. If the examiner determines that no SNQ is raised by the additional item(s) of information, the information limited to a correction of the domestic benefit claim will not be further considered on the merits. A supplemental examination certificate, which indicates that no SNQ is raised by the request, will be issued, and the benefit claim will not be corrected.

Jump to MPEP SourceRequest Content RequirementsReexamination OrderEx Parte Reexamination
StatutoryInformativeAlways
[mpep-2816-02-f6cb0cc8c52ab678c9e98473]
No SNQ for Domestic Benefit Claim Correction
Note:
If no substantial new question of patentability is raised by additional information, the domestic benefit claim correction will not be further considered on merits.

Alternatively, the request may include one or more additional items of information which are unrelated to the factual information to be corrected, but which raise a substantial new question of patentability (SNQ). For example, the patent owner may include, in addition to information limited to the correction of a domestic benefit claim, an item of information such as a reference patent that would qualify as prior art under 35 U.S.C. 102 even if the domestic benefit claim is corrected. If the examiner determines that a SNQ is raised in the request, the examiner may, at the examiner’s option, make a preliminary determination of whether the patent owner is entitled to the benefit of the corrected benefit claim, as discussed previously. Reexamination will be ordered, and the domestic benefit claim may be corrected during the resulting reexamination proceeding. See MPEP § 2809.01 and MPEP § 2816.03, subsection II. If the examiner determines that no SNQ is raised by the additional item(s) of information, the information limited to a correction of the domestic benefit claim will not be further considered on the merits. A supplemental examination certificate, which indicates that no SNQ is raised by the request, will be issued, and the benefit claim will not be corrected.

Jump to MPEP SourceRequest Content RequirementsSubstantial New Question of PatentabilityEx Parte Reexamination
Topic

Central Reexamination Unit Processing

1 rules
StatutoryRequiredAlways
[mpep-2816-02-5161398b2024680973e80b87]
Issues Involving 35 U.S.C. 325(d) Must Be Referred to Director
Note:
Issues raising substantial new questions of patentability under 35 U.S.C. 325(d) must be referred to the CRU's Director.

If an item of information raises a substantial new question of patentability (SNQ) for at least one claim of the patent, then a substantial new question of patentability as to the claim is present, unless the same question of patentability has already been: (A) decided in a final holding of invalidity by a federal court in a decision on the merits involving the claim, after all appeals; (B) decided in an earlier concluded examination or review of the patent by the Office; or (C) raised to or by the Office in a pending reexamination or supplemental examination of the patent. Issues involving 35 U.S.C. 325(d) must be referred to the Director of the CRU. An “earlier concluded examination or review” of the patent is: (A) the original examination of the application which matured into the patent; (B) the examination of the patent in a reissue application that has resulted in a reissue of the patent; (C) the examination of the patent in an earlier concluded reexamination or supplemental examination of the patent; (D) the review of the patent in an earlier concluded trial by the Patent Trial and Appeal Board, such as a post-grant review, inter partes review, or covered business method review of the patent; or (E) any other contested proceeding, which has been concluded and which involved the patent.

Jump to MPEP SourceCentral Reexamination Unit ProcessingEx Parte ReexaminationSNQ Criteria
Topic

Reissue and PTAB Proceedings

1 rules
StatutoryInformativeAlways
[mpep-2816-02-b9d4ac1ca4fa8cc6e794b89d]
Requirement for Earlier Concluded Examinations or Reviews Involving Patent
Note:
The rule requires that a substantial new question of patentability be present unless it has been decided in an earlier concluded examination, review, or proceeding involving the patent.

If an item of information raises a substantial new question of patentability (SNQ) for at least one claim of the patent, then a substantial new question of patentability as to the claim is present, unless the same question of patentability has already been: (A) decided in a final holding of invalidity by a federal court in a decision on the merits involving the claim, after all appeals; (B) decided in an earlier concluded examination or review of the patent by the Office; or (C) raised to or by the Office in a pending reexamination or supplemental examination of the patent. Issues involving 35 U.S.C. 325(d) must be referred to the Director of the CRU. An “earlier concluded examination or review” of the patent is: (A) the original examination of the application which matured into the patent; (B) the examination of the patent in a reissue application that has resulted in a reissue of the patent; (C) the examination of the patent in an earlier concluded reexamination or supplemental examination of the patent; (D) the review of the patent in an earlier concluded trial by the Patent Trial and Appeal Board, such as a post-grant review, inter partes review, or covered business method review of the patent; or (E) any other contested proceeding, which has been concluded and which involved the patent.

Jump to MPEP SourceReissue and PTAB ProceedingsReissue and ReexaminationAppeals in Reexamination
Topic

Obviousness

1 rules
StatutoryInformativeAlways
[mpep-2816-02-5afdae67a7469b7aa2e60ddf]
Obviousness Determination Unchanged by KSR
Note:
The legal standard for determining whether a novel and non-obvious (SNQ) invention exists remains unchanged despite the clarification of the obviousness standard under 35 U.S.C. 103 in KSR International Co. v. Teleflex Inc.

Note that the clarification of the legal standard for determining obviousness under 35 U.S.C. 103 in KSR International Co. v. Teleflex Inc. (KSR), 550 U.S. 398, 82 USPQ2d 1385 (2007) does not alter the legal standard for determining whether a SNQ exists.

Jump to MPEP SourceObviousnessSubstantial New Question of PatentabilityKSR Obviousness Rationales
Topic

Petition for Delayed Benefit Claim

1 rules
StatutoryRequiredAlways
[mpep-2816-02-52bb3d55ae4746f4a8fc14a4]
Final Determination of Earlier Filing Date in Reexamination
Note:
A final determination that the patent owner is entitled to the earlier filing date will generally be made during a reexamination proceeding, where appropriate amendments and petitions can be filed.

If the examiner determines that a SNQ would be raised by the intervening reference if the effective filing date of the claimed invention in the patent to be examined remains unchanged and is not corrected, the examiner may, at the examiner’s option, then make a preliminary determination of whether the patent owner is entitled to the benefit of the earlier filing date by, for example, analyzing whether the claim limitations of the patent to be examined are supported by the disclosure of the parent patent. A final determination, however, that the patent owner is entitled to the benefit of the earlier filing date will, in general, only be made during any resulting reexamination proceeding, when, for example, any appropriate amendment to the specification, and the required petition for an unintentionally delayed benefit claim under 37 CFR 1.78, may be filed. See MPEP §§ 2813 – 2813.01. For a discussion of the explanation under 37 CFR 1.610(b)(5) that must be provided in such a case, see MPEP § 2811.01, subsection III. Where the examiner determines that a substantial new question of patentability is raised, reexamination will be ordered, and the domestic benefit claim may be added during the resulting reexamination proceeding. See MPEP § 2809.01 and MPEP § 2816.03, subsection II.

Jump to MPEP Source · 37 CFR 1.78Petition for Delayed Benefit ClaimUnintentional Delay StandardDelayed Benefit/Priority Claims

Citations

Primary topicCitation
Prior Consideration of Art
SNQ Criteria
35 U.S.C. § 101
Benefit Claim in ADS
Prior Consideration of Art
Reexamination Certificate
Request Content Requirements
SNQ Criteria
Substantial New Question of Patentability
35 U.S.C. § 102
Obviousness35 U.S.C. § 103
SNQ Criteria35 U.S.C. § 257(a)
Central Reexamination Unit Processing
Reissue and PTAB Proceedings
SNQ Criteria
35 U.S.C. § 325(d)
Petition for Delayed Benefit Claim
SNQ Criteria
Substantial New Question of Patentability
37 CFR § 1.610(b)(5)
Petition for Delayed Benefit Claim
SNQ Criteria
Substantial New Question of Patentability
37 CFR § 1.78
SNQ CriteriaMPEP § 2242
Benefit Claim in ADS
Petition for Delayed Benefit Claim
Prior Consideration of Art
Reexamination Certificate
Request Content Requirements
SNQ Criteria
Substantial New Question of Patentability
MPEP § 2809.01
Benefit Claim in ADS
Petition for Delayed Benefit Claim
Reexamination Certificate
SNQ Criteria
Substantial New Question of Patentability
MPEP § 2811.01
Petition for Delayed Benefit Claim
SNQ Criteria
Substantial New Question of Patentability
MPEP § 2813
Benefit Claim in ADS
Petition for Delayed Benefit Claim
Prior Consideration of Art
Reexamination Certificate
Request Content Requirements
SNQ Criteria
Substantial New Question of Patentability
MPEP § 2816.03
Prior Consideration of Art
SNQ Criteria
Substantial New Question of Patentability
In re Recreative Technologies, 83 F.3d 1394, 38 USPQ2d 1776 (Fed. Cir. 1996)

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