MPEP § 821.03 — Claims for Different Invention Added After an Office Action (Annotated Rules)

§821.03 Claims for Different Invention Added After an Office Action

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

This page consolidates and annotates all enforceable requirements under MPEP § 821.03, 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.

Claims for Different Invention Added After an Office Action

This section addresses Claims for Different Invention Added After an Office Action. Primary authority: 37 CFR 1.145 and 37 CFR 1.143. Contains: 1 requirement, 5 guidance statements, 1 permission, and 1 other statement.

Key Rules

Topic

Amendments Adding New Matter

4 rules
StatutoryRecommendedAlways
[mpep-821-03-8b00d79b65a3c7c4ce904db1]
Amendment to Different Invention After Examiner Action
Note:
When claims are added by amendment following examiner action and relate to a different invention, they must be treated according to 37 CFR 1.145.

Claims added by amendment following action by the examiner, as explained in MPEP § 818.02(a), and drawn to an invention other than the one previously claimed, should be treated as indicated in 37 CFR 1.145.

Jump to MPEP Source · 37 CFR 1.145Amendments Adding New MatterAmendments to ApplicationExamination Procedures
StatutoryRequiredAlways
[mpep-821-03-6196edf12fb2ed0735e66cd2]
Claims Must Be Restricted to Previously Claimed Invention After Office Action
Note:
If an applicant presents claims for a different invention after an office action, the claims must be restricted to the previously claimed invention if the amendment is entered.

If, after an office action on an application, the applicant presents claims directed to an invention distinct from and independent of the invention previously claimed, the applicant will be required to restrict the claims to the invention previously claimed if the amendment is entered, subject to reconsideration and review as provided in §§ 1.143 and 1.144.

Jump to MPEP Source · 37 CFR 1.143Amendments Adding New MatterAmendments to ApplicationExamination Procedures
MPEP GuidanceRecommendedAlways
[mpep-821-03-827929376ffcb027e7ba6a9b]
Claims for Different Invention After Office Action Must Not Add New Matter
Note:
An amendment canceling claims to the elected invention and adding claims to a nonelected invention is not allowed and must be notified by an examiner using form paragraph 8.26.

An amendment canceling all claims drawn to the elected invention and presenting only claims drawn to the nonelected invention should not be entered. Such an amendment is nonresponsive. Applicant should be notified by using form paragraph 8.26. Examiners should take care to correctly designate the issue as a non-responsive amendment, which is not be confused with a notice of non-compliant amendment. Examiners may use a PTOL-90 with form paragraph 8.26 to create a notice of non-responsive amendment. Such Office Action may be designated “Informal or Non-Responsive Amendment After Examiner Action.”

Jump to MPEP SourceAmendments Adding New MatterAmendments to ApplicationForm Paragraphs
MPEP GuidanceInformativeAlways
[mpep-821-03-85d5cb86691e4d0ee07686bd]
Amendment Adding New Matter Not Permitted
Note:
An amendment canceling claims for the elected invention and adding claims for a nonelected invention is not allowed and must be notified to the applicant.

An amendment canceling all claims drawn to the elected invention and presenting only claims drawn to the nonelected invention should not be entered. Such an amendment is nonresponsive. Applicant should be notified by using form paragraph 8.26. Examiners should take care to correctly designate the issue as a non-responsive amendment, which is not be confused with a notice of non-compliant amendment. Examiners may use a PTOL-90 with form paragraph 8.26 to create a notice of non-responsive amendment. Such Office Action may be designated “Informal or Non-Responsive Amendment After Examiner Action.”

Jump to MPEP SourceAmendments Adding New MatterAmendments to ApplicationForm Paragraphs
Topic

Form Paragraph Usage

2 rules
MPEP GuidanceRecommendedAlways
[mpep-821-03-982e83a486c4e2c94395771f]
Notification Required for Non-Responsive Amendment
Note:
Applicant must be notified using form paragraph 8.26 when an amendment is non-responsive.

An amendment canceling all claims drawn to the elected invention and presenting only claims drawn to the nonelected invention should not be entered. Such an amendment is nonresponsive. Applicant should be notified by using form paragraph 8.26. Examiners should take care to correctly designate the issue as a non-responsive amendment, which is not be confused with a notice of non-compliant amendment. Examiners may use a PTOL-90 with form paragraph 8.26 to create a notice of non-responsive amendment. Such Office Action may be designated “Informal or Non-Responsive Amendment After Examiner Action.”

Jump to MPEP SourceForm Paragraph UsageColumn and Line ReferencesForm Paragraphs
MPEP GuidancePermittedAlways
[mpep-821-03-24e0e2fb4326847fe227ecb5]
Examiners May Use PTOL-90 for Informal Non-Responsive Amendment Notice
Note:
Examiners can issue a notice of non-responsive amendment using form paragraph 8.26 on a PTOL-90 when an amendment cancels all claims to the elected invention and only presents claims to the nonelected invention.

An amendment canceling all claims drawn to the elected invention and presenting only claims drawn to the nonelected invention should not be entered. Such an amendment is nonresponsive. Applicant should be notified by using form paragraph 8.26. Examiners should take care to correctly designate the issue as a non-responsive amendment, which is not be confused with a notice of non-compliant amendment. Examiners may use a PTOL-90 with form paragraph 8.26 to create a notice of non-responsive amendment. Such Office Action may be designated “Informal or Non-Responsive Amendment After Examiner Action.”

Jump to MPEP SourceForm Paragraph UsageColumn and Line ReferencesAmendments Adding New Matter
Topic

Election of Species

1 rules
StatutoryRecommendedAlways
[mpep-821-03-e2e88963cf033d394e9c11c0]
Election of Species Without Traversal Requirement
Note:
If the applicant fails to request reconsideration in reply to an Office action requiring election, the examiner should treat the application as if the election was made without traverse.

If the applicant fails to request reconsideration of the election by original presentation in reply to the Office action containing the requirement, the examiner should treat the application as if the election was made without traverse. See MPEP § 821.02.

Jump to MPEP SourceElection of SpeciesTraversal of Restriction RequirementRestriction and Election
Topic

Notice of Non-Compliant Amendment

1 rules
MPEP GuidanceRecommendedAlways
[mpep-821-03-bfeecb2591dfe91ff8eb9644]
Examiners Must Correctly Designate Non-Responsive Amendments
Note:
Examiners are required to properly identify amendments that do not respond to the office action, distinguishing them from non-compliant amendments.

An amendment canceling all claims drawn to the elected invention and presenting only claims drawn to the nonelected invention should not be entered. Such an amendment is nonresponsive. Applicant should be notified by using form paragraph 8.26. Examiners should take care to correctly designate the issue as a non-responsive amendment, which is not be confused with a notice of non-compliant amendment. Examiners may use a PTOL-90 with form paragraph 8.26 to create a notice of non-responsive amendment. Such Office Action may be designated “Informal or Non-Responsive Amendment After Examiner Action.”

Jump to MPEP SourceNotice of Non-Compliant AmendmentAmendments Adding New MatterAmendment Compliance

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.

¶ 8.04 ¶ 8.04 Election by Original Presentation

Newly submitted claim [1] directed to an invention that is independent or distinct from the invention originally claimed for the following reasons: [2]

Since applicant has received an action on the merits for the originally presented invention, this invention has been constructively elected by original presentation for prosecution on the merits. Accordingly, claim [3] withdrawn from consideration as being directed to a non-elected invention. See 37 CFR 1.142(b) and MPEP § 821.03 .

To preserve a right to petition, the reply to this action must distinctly and specifically point out supposed errors in the restriction requirement. Otherwise, the election shall be treated as a final election without traverse. Traversal must be timely. Failure to timely traverse the requirement will result in the loss of right to petition under 37 CFR 1.144. If claims are subsequently added, applicant must indicate which of the subsequently added claims are readable upon the elected invention.

Should applicant traverse on the ground that the inventions are not patentably distinct, applicant should submit evidence or identify such evidence now of record showing the inventions to be obvious variants or clearly admit on the record that this is the case. In either instance, if the examiner finds one of the inventions unpatentable over the prior art, the evidence or admission may be used in a rejection under 35 U.S.C. 103 or pre-AIA 35 U.S.C. 103(a) of the other invention.

¶ 8.26 ¶ 8.26 Canceled Elected Claims, Non-Responsive

The amendment filed on [1] canceling all claims drawn to the elected invention and presenting only claims drawn to a non-elected invention is non-responsive ( MPEP § 821.03 ) and has not been entered. The remaining claims are not readable on the elected invention because [2] .

Since the above-mentioned amendment appears to be a bona fide attempt to reply, applicant is given a shortened statutory period of TWO (2) MONTHS from the mailing date of this notice within which to supply the omission or correction in order to avoid abandonment. EXTENSIONS OF THIS TIME PERIOD UNDER 37 CFR 1.136(a) ARE AVAILABLE but in no case can any extension carry the date for reply to this letter beyond the maximum period of SIX MONTHS set by statute ( 35 U.S.C. 133 ).

Citations

Primary topicCitation
37 CFR § 1.102(c)(2)
Amendments Adding New Matter37 CFR § 1.143
Amendments Adding New Matter37 CFR § 1.145
MPEP § 708.02
MPEP § 802.01
MPEP § 803.02
MPEP § 806.04(b)
MPEP § 806.05(a)
Amendments Adding New MatterMPEP § 818.02(a)
MPEP § 821.01
Election of SpeciesMPEP § 821.02
Form Paragraph § 8.04
Amendments Adding New Matter
Form Paragraph Usage
Notice of Non-Compliant Amendment
Form Paragraph § 8.26

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