MPEP § 2260.01 — Dependent Claims (Annotated Rules)

§2260.01 Dependent Claims

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

This page consolidates and annotates all enforceable requirements under MPEP § 2260.01, 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.

Dependent Claims

This section addresses Dependent Claims. Contains: 5 guidance statements and 1 other statement.

Key Rules

Topic

Reissue and Reexamination

4 rules
MPEP GuidanceRecommendedAlways
[mpep-2260-01-89c8b43dbcdb8b3e97e75239]
Dependent Claims Must Be Confirmed If Base Claim Is Rejected
Note:
If a base patent claim is rejected, canceled, or no longer subject to reexamination, dependent claims directly or indirectly relying on it must be confirmed if they are otherwise allowable.

If an unamended base patent claim (i.e., a claim appearing in the reexamination as it appears in the patent) has been rejected, canceled, or is no longer subject to reexamination due to adjudication in court, any claim undergoing reexamination which is directly or indirectly dependent thereon should be confirmed or allowed if the dependent claim is otherwise allowable. The dependent claim should not be objected to or rejected merely because it depends on a rejected or canceled patent claim or a claim no longer subject to reexamination. No requirement should be made for rewriting the dependent claim in independent form. As the original patent claim numbers are not changed in a reexamination proceeding, the content of the canceled base claim would remain in the printed patent and would be available to be read as a part of the confirmed or allowed dependent claim.

Jump to MPEP SourceReissue and ReexaminationConcurrent Reissue ProceedingsReissue Patent Practice
MPEP GuidanceRecommendedAlways
[mpep-2260-01-762aa20f9c59c72c50a3e179]
Dependent Claims Not Rejected Due to Base Claim Status
Note:
A dependent claim should not be rejected if it depends on a rejected, canceled, or no longer reexamined base claim.

If an unamended base patent claim (i.e., a claim appearing in the reexamination as it appears in the patent) has been rejected, canceled, or is no longer subject to reexamination due to adjudication in court, any claim undergoing reexamination which is directly or indirectly dependent thereon should be confirmed or allowed if the dependent claim is otherwise allowable. The dependent claim should not be objected to or rejected merely because it depends on a rejected or canceled patent claim or a claim no longer subject to reexamination. No requirement should be made for rewriting the dependent claim in independent form. As the original patent claim numbers are not changed in a reexamination proceeding, the content of the canceled base claim would remain in the printed patent and would be available to be read as a part of the confirmed or allowed dependent claim.

Jump to MPEP SourceReissue and ReexaminationConcurrent Reissue ProceedingsReissue Patent Practice
MPEP GuidanceRecommendedAlways
[mpep-2260-01-ec70a86cfc0908048ae66394]
Dependent Claims Must Not Be Rewritten
Note:
A dependent claim should not be converted to independent form even if the base claim has been rejected or canceled during reexamination.

If an unamended base patent claim (i.e., a claim appearing in the reexamination as it appears in the patent) has been rejected, canceled, or is no longer subject to reexamination due to adjudication in court, any claim undergoing reexamination which is directly or indirectly dependent thereon should be confirmed or allowed if the dependent claim is otherwise allowable. The dependent claim should not be objected to or rejected merely because it depends on a rejected or canceled patent claim or a claim no longer subject to reexamination. No requirement should be made for rewriting the dependent claim in independent form. As the original patent claim numbers are not changed in a reexamination proceeding, the content of the canceled base claim would remain in the printed patent and would be available to be read as a part of the confirmed or allowed dependent claim.

Jump to MPEP SourceReissue and ReexaminationConcurrent Reissue ProceedingsReissue Patent Practice
MPEP GuidanceInformativeAlways
[mpep-2260-01-78f0fc8f6532d328cb5a5f33]
Content of Canceled Base Claim Remains in Dependent Claims
Note:
Dependent claims that depend on canceled base claims must include the content of those canceled claims as part of their description.

If an unamended base patent claim (i.e., a claim appearing in the reexamination as it appears in the patent) has been rejected, canceled, or is no longer subject to reexamination due to adjudication in court, any claim undergoing reexamination which is directly or indirectly dependent thereon should be confirmed or allowed if the dependent claim is otherwise allowable. The dependent claim should not be objected to or rejected merely because it depends on a rejected or canceled patent claim or a claim no longer subject to reexamination. No requirement should be made for rewriting the dependent claim in independent form. As the original patent claim numbers are not changed in a reexamination proceeding, the content of the canceled base claim would remain in the printed patent and would be available to be read as a part of the confirmed or allowed dependent claim.

Jump to MPEP SourceReissue and ReexaminationConcurrent Reissue ProceedingsReissue Patent Practice
Topic

Ex Parte Reexamination

2 rules
MPEP GuidanceRecommendedAlways
[mpep-2260-01-1d008aeca6f4be07e8c4b111]
Dependent Claims Must Be Rewritten If Base Claim Cancelled
Note:
If a new base claim is canceled in reexamination, dependent claims must be rewritten in independent form.

If a new base claim (a base claim other than a base claim appearing in the patent) has been canceled in a reexamination proceeding, a claim which depends thereon should be rejected as indefinite. If a new base claim or an amended patent claim is rejected, a claim dependent thereon should be objected to if it is otherwise patentable and a requirement made for rewriting the dependent claim in independent form.

Jump to MPEP SourceEx Parte Reexamination
MPEP GuidanceRecommendedAlways
[mpep-2260-01-8213cfc2f55871c5a5876d2a]
Requirement for Rewriting Dependent Claims in Independent Form
Note:
If a new base claim is rejected, dependent claims must be rewritten as independent claims if they are otherwise patentable.

If a new base claim (a base claim other than a base claim appearing in the patent) has been canceled in a reexamination proceeding, a claim which depends thereon should be rejected as indefinite. If a new base claim or an amended patent claim is rejected, a claim dependent thereon should be objected to if it is otherwise patentable and a requirement made for rewriting the dependent claim in independent form.

Jump to MPEP SourceEx Parte Reexamination

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