MPEP § 821.04(a) — Rejoinder Between Product Inventions; Rejoinder Between Process Inventions (Annotated Rules)

§821.04(a) Rejoinder Between Product Inventions; Rejoinder Between Process Inventions

USPTO MPEP version: BlueIron's Update: 2026-01-17

This page consolidates and annotates all enforceable requirements under MPEP § 821.04(a), 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.

Rejoinder Between Product Inventions; Rejoinder Between Process Inventions

This section addresses Rejoinder Between Product Inventions; Rejoinder Between Process Inventions. Primary authority: 35 U.S.C. 121, 37 CFR 1.104, and 37 CFR 1.121. Contains: 1 requirement, 1 guidance statement, and 4 other statements.

Key Rules

Topic

Restriction Requirement (MPEP 802-803)

10 rules
StatutoryInformativeAlways
[mpep-821-04-a-eb0280b8870fde283478a6d3]
Requirement for Restricting Related Inventions
Note:
This rule requires that a restriction requirement be made when inventions related as products or processes are involved.

1. This form paragraph is applicable where a restriction requirement was made between related product inventions or between related process inventions. See MPEP §§ 806.05(j) and 821.04(a).

35 U.S.C.Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
StatutoryInformativeAlways
[mpep-821-04-a-1edd71e2893f39c08d8a60a3]
Requirement for Restricting Related Inventions
Note:
This rule outlines the procedure for handling restriction requirements between related product or process inventions, as detailed in MPEP sections 806.05(j) and 821.04(a).

1. This form paragraph is applicable where a restriction requirement was made between related product inventions or between related process inventions. See MPEP §§ 806.05(j) and 821.04(a).

35 U.S.C.Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceRequiredAlways
[mpep-821-04-a-683ee8cff71ac19ba8cf8a1f]
Claims to Nonelected Invention Must Be Rejoined
Note:
When claims to the nonelected invention(s) depend from or require all limitations of an allowable claim, applicant must be advised that these claims have been rejoined and the restriction requirement has been withdrawn in its entirety.

When all claims to the nonelected invention(s) depend from or otherwise require all the limitations of an allowable claim, applicant must be advised that claims drawn to the nonelected invention have been rejoined and the restriction requirement has been withdrawn in its entirety. Form paragraph 8.45 may be used.

Jump to MPEP SourceRestriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)Rejoinder of Claims (MPEP 821.04)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-1d598d967f4a77cf2f37eecb]
Requirement for Restricting Related Inventions
Note:
This rule requires the restriction of related product or process inventions when a restriction requirement is made.

1. This form paragraph is applicable where a restriction requirement was made between related product inventions or between related process inventions. See MPEP §§ 806.05(j) and 821.04(a).

MPEP § 821.04(a)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceRequiredAlways
[mpep-821-04-a-cd2b555c53f3ae69c089d6c4]
Claims Requiring All Allowable Limitations Must Be Numbered
Note:
Each claim that includes all the limitations of an allowable claim and was canceled due to a restriction requirement must be numbered in bracket 7.

8. In bracket 7, insert the number of each claim that required all the limitations of an allowable claim but was canceled as a result of the restriction requirement.

MPEP § 821.04(a)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-6fe4c72336fabf3430f34e6c]
Requirement for Non-Final Restriction Between Related Inventions
Note:
This rule requires that a restriction requirement be made between related product or process inventions when the application has not been finally rejected.

1. This form paragraph is applicable where a restriction requirement was made between related product inventions or between related process inventions and the application has not been finally rejected. See MPEP §§ 806.05(j) and 821.04(a). After final rejection, use form paragraph 8.47.01 instead of this form paragraph.

MPEP § 821.04(a)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-c8372d599569089a3e7d4963]
Use Form Paragraph 8.47.01 After Final Rejection
Note:
Switch to form paragraph 8.47.01 when final rejection occurs instead of this form paragraph.

1. This form paragraph is applicable where a restriction requirement was made between related product inventions or between related process inventions and the application has not been finally rejected. See MPEP §§ 806.05(j) and 821.04(a). After final rejection, use form paragraph 8.47.01 instead of this form paragraph.

MPEP § 821.04(a)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceRequiredAlways
[mpep-821-04-a-1404ec8c425eea4ae492c08d]
Claims Requiring Allowable Limitations Must Be Numbered
Note:
Each claim that includes all the limitations of an allowable claim and was canceled due to a restriction requirement must be numbered in bracket 7.

8. In bracket 7, insert the number of each claim that required all the limitations of an allowable claim but was canceled as a result of the restriction requirement.

MPEP § 821.04(a)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-9308102df5b5228b934fa8cf]
Requirement for Final Rejection After Restriction
Note:
This rule applies when a restriction requirement is made between related product or process inventions and the application is finally rejected.

1. This form paragraph is applicable where a restriction requirement was made between related product inventions or between related process inventions and the application has been finally rejected. See MPEP §§ 806.05(j) and 821.04(a). Before final rejection, use form paragraph 8.47 instead of this form paragraph.

MPEP § 821.04(a)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-05e84bcf80a5546cbe661ad2]
Use Form Paragraph 8.47 Before Final Rejection
Note:
Before final rejection, use form paragraph 8.47 instead of this form paragraph when a restriction requirement was made between related product or process inventions.

1. This form paragraph is applicable where a restriction requirement was made between related product inventions or between related process inventions and the application has been finally rejected. See MPEP §§ 806.05(j) and 821.04(a). Before final rejection, use form paragraph 8.47 instead of this form paragraph.

MPEP § 821.04(a)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
Topic

Withdrawn Claims

9 rules
StatutoryPermittedAlways
[mpep-821-04-a-d73bc29768ebdecaf8ada26b]
Claims Not Requiring Allowable Limitations Remain Withdrawn
Note:
Claims that do not include all limitations of an allowable claim in a divisional application remain withdrawn from consideration, but may be subject to double patenting rejection if they match allowable claims from the parent application.

Where restriction was required between independent or distinct products, or between independent or distinct processes, and all claims directed to an elected invention are allowable, the examiner should withdraw any restriction requirement between the elected invention and any nonelected invention that depends from or otherwise requires all the limitations of an allowable claim. For example, a requirement for restriction should be withdrawn when a generic claim, linking claim, or subcombination claim is allowable and any previously withdrawn claim depends from or otherwise requires all the limitations thereof. Claims that require all the limitations of an allowable claim will be rejoined and fully examined for patentability in accordance with 37 CFR 1.104. Claims that do not require all the limitations of an allowable claim remain withdrawn from consideration. However, in view of the withdrawal of the restriction requirement, if any claim presented in a divisional application includes all the limitations of a claim that is allowable in the parent application, such claim may be subject to a double patenting rejection over the claims of the parent application. Once a restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. Additionally, a patentably indistinct claim in a child application would be subject to a double patenting rejection over the claims of the parent application when the child application is a continuation or continuation-in-part application or is a divisional application without consonance. The prohibition against double patenting rejections under 35 U.S.C. 121 is limited to divisional applications with consonance. See MPEP § 804.01

Jump to MPEP Source · 37 CFR 1.104Withdrawn ClaimsRestriction and ElectionDivisional Applications (MPEP 201.06)
MPEP GuidanceRecommendedAlways
[mpep-821-04-a-341d13773f07e84122cc3b07]
Requirement for All Withdrawn Claims to Depend on Allowable Claim
Note:
All withdrawn claims must depend from or require all limitations of an allowable claim, and non-elected claims must not be canceled.

2. This form paragraph should be used whenever ALL previously withdrawn claims depend from or otherwise require all the limitations of an allowable claim (e.g., a generic claim, linking claim, or subcombination claim) and wherein the non-elected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part. Use form paragraph 8.49 when the elected invention is allowable and the restriction requirement is maintained without modification.

MPEP § 821.04(a)Withdrawn ClaimsElection Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-d9f6bbd16e91e87d46dae4af]
Requirement for Canceling Non-elected Claims
Note:
The rule requires that non-elected claims must be canceled when the elected invention is allowable and all previously withdrawn claims depend from or require the limitations of an allowable claim.

2. This form paragraph should be used whenever ALL previously withdrawn claims depend from or otherwise require all the limitations of an allowable claim (e.g., a generic claim, linking claim, or subcombination claim) and wherein the non-elected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part. Use form paragraph 8.49 when the elected invention is allowable and the restriction requirement is maintained without modification.

MPEP § 821.04(a)Withdrawn ClaimsElection Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceRequiredAlways
[mpep-821-04-a-5f4b5bba1c0e12f51b023dda]
Requirement for Canceling Non-Elected Claims
Note:
When an allowable claim is allowed and non-elected claims with all limitations of the allowable claim are canceled, this form paragraph must be used.

2. This form paragraph (or form paragraph 8.47 or 8.47.01) must be used upon the allowance of a linking claim, generic claim, or subcombination claim following a restriction requirement with at least one of these claim types present and wherein the non-elected claims requiring all the limitations of an allowable claim HAVE BEEN canceled. Use form paragraph 8.45 where the nonelected claims have NOT been canceled and all previously withdrawn claims are rejoined. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Withdrawn ClaimsElection Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-fa8f8ec440fbcdbbfe826d19]
Requirement for Rejoining Withdrawn Claims After Allowance
Note:
This rule requires rejoining withdrawn claims after the allowance of a linking, generic, or subcombination claim, provided nonelected claims have been canceled.

2. This form paragraph (or form paragraph 8.47 or 8.47.01) must be used upon the allowance of a linking claim, generic claim, or subcombination claim following a restriction requirement with at least one of these claim types present and wherein the non-elected claims requiring all the limitations of an allowable claim HAVE BEEN canceled. Use form paragraph 8.45 where the nonelected claims have NOT been canceled and all previously withdrawn claims are rejoined. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Withdrawn ClaimsElection Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceRequiredAlways
[mpep-821-04-a-e993e8a35c34a8a4487afd74]
Non-Elected Claims with Allowable Limitations Must BeCanceled
Note:
When an allowable claim is allowed, non-elected claims that require all its limitations must be canceled before proceeding.

2. This form paragraph (or form paragraph 8.46 or 8.47.01) must be used upon the allowance of a linking claim, generic claim, or subcombination claim following a restriction requirement with at least one of these claim types present and wherein the non-elected claims requiring all the limitations of an allowable claim HAVE BEEN canceled. Use form paragraph 8.45 where the nonelected claims have NOT been canceled and all previously withdrawn claims are rejoined. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Withdrawn ClaimsElection Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-7d486cabd415ef95998bb03e]
Requirement for Rejoining Withdrawn Claims When Nonelected Claims Not Canceled
Note:
This rule requires rejoining withdrawn claims when nonelected claims have not been canceled and an allowance has been granted.

2. This form paragraph (or form paragraph 8.46 or 8.47.01) must be used upon the allowance of a linking claim, generic claim, or subcombination claim following a restriction requirement with at least one of these claim types present and wherein the non-elected claims requiring all the limitations of an allowable claim HAVE BEEN canceled. Use form paragraph 8.45 where the nonelected claims have NOT been canceled and all previously withdrawn claims are rejoined. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Withdrawn ClaimsElection Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceRequiredAlways
[mpep-821-04-a-6e0f003b22f91c76b437baa3]
Non-Elected Claims Must Be Cancelled After Allowance of Linking Claim
Note:
When a linking claim, generic claim, or subcombination claim is allowed after a restriction requirement, non-elected claims that require all the limitations of an allowable claim must be canceled.

2. This form paragraph (or form paragraph 8.46) must be used upon the allowance of a linking claim, generic claim, or subcombination claim following a restriction requirement with at least one of these claim types present and wherein the non-elected claims requiring all the limitations of an allowable claim HAVE BEEN canceled. Use form paragraph 8.45 where the nonelected claims have NOT been canceled and all previously withdrawn claims are rejoined. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Withdrawn ClaimsElection Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-b9d011297e63564151c3d2fa]
Requirement for Rejoining Nonelected Claims
Note:
This rule requires rejoining nonelected claims that have not been canceled and previously withdrawn claims upon the allowance of a linking, generic, or subcombination claim following a restriction requirement.

2. This form paragraph (or form paragraph 8.46) must be used upon the allowance of a linking claim, generic claim, or subcombination claim following a restriction requirement with at least one of these claim types present and wherein the non-elected claims requiring all the limitations of an allowable claim HAVE BEEN canceled. Use form paragraph 8.45 where the nonelected claims have NOT been canceled and all previously withdrawn claims are rejoined. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Withdrawn ClaimsElection Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)
Topic

Election Requirement (MPEP 808, 818)

9 rules
MPEP GuidanceInformativeAlways
[mpep-821-04-a-1d7490b41ee65e89fff5cdca]
Requirement for Partially Withdrawn Restriction
Note:
Use form paragraph 8.50 when the elected invention is allowable and part of the restriction requirement has been withdrawn.

2. This form paragraph should be used whenever ALL previously withdrawn claims depend from or otherwise require all the limitations of an allowable claim (e.g., a generic claim, linking claim, or subcombination claim) and wherein the non-elected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part. Use form paragraph 8.49 when the elected invention is allowable and the restriction requirement is maintained without modification.

MPEP § 821.04(a)Election Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)Withdrawn Claims
MPEP GuidanceInformativeAlways
[mpep-821-04-a-5dc76d555fed6052ffc4c4a3]
Requirement for Maintaining Restriction Requirement Without Modification
Note:
This rule requires the use of form paragraph 8.49 when the elected invention is allowable and the restriction requirement remains unchanged.

2. This form paragraph should be used whenever ALL previously withdrawn claims depend from or otherwise require all the limitations of an allowable claim (e.g., a generic claim, linking claim, or subcombination claim) and wherein the non-elected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part. Use form paragraph 8.49 when the elected invention is allowable and the restriction requirement is maintained without modification.

MPEP § 821.04(a)Election Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)Withdrawn Claims
MPEP GuidanceInformativeAlways
[mpep-821-04-a-adf7d7a54a5e7169f5ae359e]
Use Form Paragraph 8.45 When Elected Invention Is Allowable and Restriction Requirement Withdrawn Entirely
Note:
This form paragraph is required when the elected invention has been deemed allowable and all restriction requirements have been withdrawn.

2. This form paragraph should be used upon the allowance of a linking claim, generic claim, or subcombination claim when none of the nonelected claims require all the limitations of an allowable claim and wherein the nonelected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.45 when the elected invention is allowable and the restriction requirement is withdrawn in its entirety. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Election Requirement (MPEP 808, 818)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-9802f425feb7522332425cda]
Requirement for Partially Withdrawn Restriction
Note:
Use form paragraph 8.50 when the elected invention is allowable and part of the restriction requirement has been withdrawn.

2. This form paragraph should be used upon the allowance of a linking claim, generic claim, or subcombination claim when none of the nonelected claims require all the limitations of an allowable claim and wherein the nonelected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.45 when the elected invention is allowable and the restriction requirement is withdrawn in its entirety. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Election Requirement (MPEP 808, 818)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-d54255aa2e29ea812ee80a5e]
Requirement for Use of Form Paragraph 8.45 When Elected Invention is Allowable and Restriction Requirement Withdrawn Entirely
Note:
This rule requires the use of form paragraph 8.45 when the elected invention has been deemed allowable and all restriction requirements have been withdrawn.

2. This form paragraph should be used upon the allowance of a linking claim, generic claim, or subcombination claim when some, but not all, of the nonelected claims require all the limitations of an allowable claim and wherein the nonelected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.45 when the elected invention is allowable and the restriction requirement is withdrawn in its entirety. Use form paragraph 8.49 when the elected invention is allowable and the restriction requirement is maintained without modification.

MPEP § 821.04(a)Election Requirement (MPEP 808, 818)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-e79a95a85a50a43e23ebb06d]
Requirement for Maintaining Restriction Without Modification
Note:
This rule requires the use of form paragraph 8.49 when the elected invention is allowable and the restriction requirement remains unchanged after allowance of a linking, generic, or subcombination claim.

2. This form paragraph should be used upon the allowance of a linking claim, generic claim, or subcombination claim when some, but not all, of the nonelected claims require all the limitations of an allowable claim and wherein the nonelected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.45 when the elected invention is allowable and the restriction requirement is withdrawn in its entirety. Use form paragraph 8.49 when the elected invention is allowable and the restriction requirement is maintained without modification.

MPEP § 821.04(a)Election Requirement (MPEP 808, 818)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-723fdad774c851a36d6c2a18]
Requirement for Partially Withdrawn Restriction
Note:
When the elected invention is allowable and part of a restriction requirement has been withdrawn, form paragraph 8.50 must be used.

2. This form paragraph (or form paragraph 8.47 or 8.47.01) must be used upon the allowance of a linking claim, generic claim, or subcombination claim following a restriction requirement with at least one of these claim types present and wherein the non-elected claims requiring all the limitations of an allowable claim HAVE BEEN canceled. Use form paragraph 8.45 where the nonelected claims have NOT been canceled and all previously withdrawn claims are rejoined. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Election Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)Withdrawn Claims
MPEP GuidanceInformativeAlways
[mpep-821-04-a-f7ca6d26762bacf6675a7542]
Requirement for Partially Withdrawn Restriction
Note:
Use form paragraph 8.50 when the elected invention is allowable and part of the restriction requirement has been withdrawn.

2. This form paragraph (or form paragraph 8.46 or 8.47.01) must be used upon the allowance of a linking claim, generic claim, or subcombination claim following a restriction requirement with at least one of these claim types present and wherein the non-elected claims requiring all the limitations of an allowable claim HAVE BEEN canceled. Use form paragraph 8.45 where the nonelected claims have NOT been canceled and all previously withdrawn claims are rejoined. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Election Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)Withdrawn Claims
MPEP GuidanceInformativeAlways
[mpep-821-04-a-5a75192f9d07e86bb99c15eb]
Requirement for Partially Withdrawn Restriction
Note:
Use form paragraph 8.50 when the elected invention is allowable and part of the restriction requirement has been withdrawn.

2. This form paragraph (or form paragraph 8.46) must be used upon the allowance of a linking claim, generic claim, or subcombination claim following a restriction requirement with at least one of these claim types present and wherein the non-elected claims requiring all the limitations of an allowable claim HAVE BEEN canceled. Use form paragraph 8.45 where the nonelected claims have NOT been canceled and all previously withdrawn claims are rejoined. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Election Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)Withdrawn Claims
Topic

Linking Claims (MPEP 809)

4 rules
MPEP GuidanceRecommendedAlways
[mpep-821-04-a-07a9024ac466eaac663edb16]
Requirement for Linking Claims When Nonelected Claims Do Not Meet Allowable Claim Limitations
Note:
This rule requires the use of a form paragraph when an allowable linking claim is allowed, and nonelected claims do not meet all limitations of the allowable claim but have not been canceled.

2. This form paragraph should be used upon the allowance of a linking claim, generic claim, or subcombination claim when none of the nonelected claims require all the limitations of an allowable claim and wherein the nonelected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.45 when the elected invention is allowable and the restriction requirement is withdrawn in its entirety. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Linking Claims (MPEP 809)Combinations and Subcombinations (MPEP 806)Election Requirement (MPEP 808, 818)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-124b2a07abf277af22486bdc]
Requirement for Nonelected Claims When Cancelled
Note:
When nonelected claims are canceled, the examiner must use form paragraphs 8.46, 8.47, or 8.47.01 as appropriate to address the allowance of linking, generic, or subcombination claims.

2. This form paragraph should be used upon the allowance of a linking claim, generic claim, or subcombination claim when none of the nonelected claims require all the limitations of an allowable claim and wherein the nonelected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.45 when the elected invention is allowable and the restriction requirement is withdrawn in its entirety. Use form paragraph 8.50 when the elected invention is allowable and the restriction requirement is withdrawn in part.

MPEP § 821.04(a)Linking Claims (MPEP 809)Combinations and Subcombinations (MPEP 806)Election Requirement (MPEP 808, 818)
MPEP GuidanceRecommendedAlways
[mpep-821-04-a-afb62e93e121d5d2f4e050d8]
Requirement for Linking Claims When Some Nonelected Claims Have All Allowable Limitations
Note:
This rule requires the use of a linking claim paragraph when some but not all nonelected claims include all limitations of an allowable claim and have not been canceled.

2. This form paragraph should be used upon the allowance of a linking claim, generic claim, or subcombination claim when some, but not all, of the nonelected claims require all the limitations of an allowable claim and wherein the nonelected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.45 when the elected invention is allowable and the restriction requirement is withdrawn in its entirety. Use form paragraph 8.49 when the elected invention is allowable and the restriction requirement is maintained without modification.

MPEP § 821.04(a)Linking Claims (MPEP 809)Combinations and Subcombinations (MPEP 806)Election Requirement (MPEP 808, 818)
MPEP GuidanceInformativeAlways
[mpep-821-04-a-aed9573ea49d2e2871cf9e21]
Requirement for Form Paragraphs When Nonelected Claims Cancelled
Note:
Use form paragraphs 8.46, 8.47, or 8.47.01 when nonelected claims have been canceled upon allowance of a linking claim, generic claim, or subcombination claim.

2. This form paragraph should be used upon the allowance of a linking claim, generic claim, or subcombination claim when some, but not all, of the nonelected claims require all the limitations of an allowable claim and wherein the nonelected claims have NOT been canceled. Use form paragraph 8.46, 8.47, or 8.47.01 as appropriate where the nonelected claims HAVE BEEN canceled. Use form paragraph 8.45 when the elected invention is allowable and the restriction requirement is withdrawn in its entirety. Use form paragraph 8.49 when the elected invention is allowable and the restriction requirement is maintained without modification.

MPEP § 821.04(a)Linking Claims (MPEP 809)Combinations and Subcombinations (MPEP 806)Election Requirement (MPEP 808, 818)
Topic

Safe Harbor for Divisional

3 rules
StatutoryInformativeAlways
[mpep-821-04-a-3d619497863c114317eeff02]
Restriction Requirement Withdrawal After Allowance
Note:
Once a restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable.

Where restriction was required between independent or distinct products, or between independent or distinct processes, and all claims directed to an elected invention are allowable, the examiner should withdraw any restriction requirement between the elected invention and any nonelected invention that depends from or otherwise requires all the limitations of an allowable claim. For example, a requirement for restriction should be withdrawn when a generic claim, linking claim, or subcombination claim is allowable and any previously withdrawn claim depends from or otherwise requires all the limitations thereof. Claims that require all the limitations of an allowable claim will be rejoined and fully examined for patentability in accordance with 37 CFR 1.104. Claims that do not require all the limitations of an allowable claim remain withdrawn from consideration. However, in view of the withdrawal of the restriction requirement, if any claim presented in a divisional application includes all the limitations of a claim that is allowable in the parent application, such claim may be subject to a double patenting rejection over the claims of the parent application. Once a restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. Additionally, a patentably indistinct claim in a child application would be subject to a double patenting rejection over the claims of the parent application when the child application is a continuation or continuation-in-part application or is a divisional application without consonance. The prohibition against double patenting rejections under 35 U.S.C. 121 is limited to divisional applications with consonance. See MPEP § 804.01

Jump to MPEP Source · 37 CFR 1.104Safe Harbor for DivisionalRestriction and ElectionRestriction and Election Practice (MPEP Chapter 800)
StatutoryInformativeAlways
[mpep-821-04-a-0186c0a1f53312fed7329348]
Divisional Application Claims Must Not Duplicate Parent
Note:
A patentably indistinct claim in a divisional application must not be subject to a double patenting rejection over the claims of the parent application unless the child application is a continuation or continuation-in-part without consonance.

Where restriction was required between independent or distinct products, or between independent or distinct processes, and all claims directed to an elected invention are allowable, the examiner should withdraw any restriction requirement between the elected invention and any nonelected invention that depends from or otherwise requires all the limitations of an allowable claim. For example, a requirement for restriction should be withdrawn when a generic claim, linking claim, or subcombination claim is allowable and any previously withdrawn claim depends from or otherwise requires all the limitations thereof. Claims that require all the limitations of an allowable claim will be rejoined and fully examined for patentability in accordance with 37 CFR 1.104. Claims that do not require all the limitations of an allowable claim remain withdrawn from consideration. However, in view of the withdrawal of the restriction requirement, if any claim presented in a divisional application includes all the limitations of a claim that is allowable in the parent application, such claim may be subject to a double patenting rejection over the claims of the parent application. Once a restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. Additionally, a patentably indistinct claim in a child application would be subject to a double patenting rejection over the claims of the parent application when the child application is a continuation or continuation-in-part application or is a divisional application without consonance. The prohibition against double patenting rejections under 35 U.S.C. 121 is limited to divisional applications with consonance. See MPEP § 804.01

Jump to MPEP Source · 37 CFR 1.104Safe Harbor for DivisionalStatutory Authority for ExaminationRestriction and Election
StatutoryInformativeAlways
[mpep-821-04-a-0d270621dde04d14045e31a0]
Double Patenting Rejection for Divisional Applications with Consonance
Note:
This rule states that double patenting rejections under 35 U.S.C. 121 are limited to divisional applications that have consonance, meaning they must include all the limitations of an allowable claim from the parent application.

Where restriction was required between independent or distinct products, or between independent or distinct processes, and all claims directed to an elected invention are allowable, the examiner should withdraw any restriction requirement between the elected invention and any nonelected invention that depends from or otherwise requires all the limitations of an allowable claim. For example, a requirement for restriction should be withdrawn when a generic claim, linking claim, or subcombination claim is allowable and any previously withdrawn claim depends from or otherwise requires all the limitations thereof. Claims that require all the limitations of an allowable claim will be rejoined and fully examined for patentability in accordance with 37 CFR 1.104. Claims that do not require all the limitations of an allowable claim remain withdrawn from consideration. However, in view of the withdrawal of the restriction requirement, if any claim presented in a divisional application includes all the limitations of a claim that is allowable in the parent application, such claim may be subject to a double patenting rejection over the claims of the parent application. Once a restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. Additionally, a patentably indistinct claim in a child application would be subject to a double patenting rejection over the claims of the parent application when the child application is a continuation or continuation-in-part application or is a divisional application without consonance. The prohibition against double patenting rejections under 35 U.S.C. 121 is limited to divisional applications with consonance. See MPEP § 804.01

Jump to MPEP Source · 37 CFR 1.104Safe Harbor for DivisionalRestriction and ElectionRestriction and Election Practice (MPEP Chapter 800)
Topic

Restriction and Election

1 rules
StatutoryRequiredAlways
[mpep-821-04-a-18f7279ab5989e797cef59c6]
Withdraw Restriction Between Inventions
Note:
When all claims of an elected invention are allowable, the examiner should withdraw any restriction requirement between the elected and nonelected inventions that depend from or require all limitations of an allowable claim.

Where restriction was required between independent or distinct products, or between independent or distinct processes, and all claims directed to an elected invention are allowable, the examiner should withdraw any restriction requirement between the elected invention and any nonelected invention that depends from or otherwise requires all the limitations of an allowable claim. For example, a requirement for restriction should be withdrawn when a generic claim, linking claim, or subcombination claim is allowable and any previously withdrawn claim depends from or otherwise requires all the limitations thereof. Claims that require all the limitations of an allowable claim will be rejoined and fully examined for patentability in accordance with 37 CFR 1.104. Claims that do not require all the limitations of an allowable claim remain withdrawn from consideration. However, in view of the withdrawal of the restriction requirement, if any claim presented in a divisional application includes all the limitations of a claim that is allowable in the parent application, such claim may be subject to a double patenting rejection over the claims of the parent application. Once a restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. Additionally, a patentably indistinct claim in a child application would be subject to a double patenting rejection over the claims of the parent application when the child application is a continuation or continuation-in-part application or is a divisional application without consonance. The prohibition against double patenting rejections under 35 U.S.C. 121 is limited to divisional applications with consonance. See MPEP § 804.01

Jump to MPEP Source · 37 CFR 1.104Restriction and ElectionElection Requirement (MPEP 808, 818)Restriction and Election Practice (MPEP Chapter 800)
Topic

Election of Species

1 rules
StatutoryRecommendedAlways
[mpep-821-04-a-10ea5fb642d4a399471365a6]
Allowable Claim Requires Withdrawn Claims
Note:
When an allowable claim is found, previously withdrawn claims that depend on it must be rejoined and examined for patentability.

Where restriction was required between independent or distinct products, or between independent or distinct processes, and all claims directed to an elected invention are allowable, the examiner should withdraw any restriction requirement between the elected invention and any nonelected invention that depends from or otherwise requires all the limitations of an allowable claim. For example, a requirement for restriction should be withdrawn when a generic claim, linking claim, or subcombination claim is allowable and any previously withdrawn claim depends from or otherwise requires all the limitations thereof. Claims that require all the limitations of an allowable claim will be rejoined and fully examined for patentability in accordance with 37 CFR 1.104. Claims that do not require all the limitations of an allowable claim remain withdrawn from consideration. However, in view of the withdrawal of the restriction requirement, if any claim presented in a divisional application includes all the limitations of a claim that is allowable in the parent application, such claim may be subject to a double patenting rejection over the claims of the parent application. Once a restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. Additionally, a patentably indistinct claim in a child application would be subject to a double patenting rejection over the claims of the parent application when the child application is a continuation or continuation-in-part application or is a divisional application without consonance. The prohibition against double patenting rejections under 35 U.S.C. 121 is limited to divisional applications with consonance. See MPEP § 804.01

Jump to MPEP Source · 37 CFR 1.104Election of SpeciesRestriction and ElectionSafe Harbor for Divisional
Topic

Examination Procedures

1 rules
StatutoryInformativeAlways
[mpep-821-04-a-507b56d6dcd9edb8db45d056]
Claims Requiring All Allowable Limitations Must Be Examined
Note:
Claims that depend on an allowable claim must be rejoined and fully examined for patentability.

Where restriction was required between independent or distinct products, or between independent or distinct processes, and all claims directed to an elected invention are allowable, the examiner should withdraw any restriction requirement between the elected invention and any nonelected invention that depends from or otherwise requires all the limitations of an allowable claim. For example, a requirement for restriction should be withdrawn when a generic claim, linking claim, or subcombination claim is allowable and any previously withdrawn claim depends from or otherwise requires all the limitations thereof. Claims that require all the limitations of an allowable claim will be rejoined and fully examined for patentability in accordance with 37 CFR 1.104. Claims that do not require all the limitations of an allowable claim remain withdrawn from consideration. However, in view of the withdrawal of the restriction requirement, if any claim presented in a divisional application includes all the limitations of a claim that is allowable in the parent application, such claim may be subject to a double patenting rejection over the claims of the parent application. Once a restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. Additionally, a patentably indistinct claim in a child application would be subject to a double patenting rejection over the claims of the parent application when the child application is a continuation or continuation-in-part application or is a divisional application without consonance. The prohibition against double patenting rejections under 35 U.S.C. 121 is limited to divisional applications with consonance. See MPEP § 804.01

Jump to MPEP Source · 37 CFR 1.104Examination ProceduresElection of SpeciesSafe Harbor for Divisional
Topic

Rejoinder of Claims (MPEP 821.04)

1 rules
MPEP GuidancePermittedAlways
[mpep-821-04-a-a78b77e7a66df1e0686b699b]
Claims to Nonelected Invention Must Be Rejoined
Note:
When all claims depend from an allowable claim, rejoined claims to the nonelected invention must be included and the restriction requirement is withdrawn.

When all claims to the nonelected invention(s) depend from or otherwise require all the limitations of an allowable claim, applicant must be advised that claims drawn to the nonelected invention have been rejoined and the restriction requirement has been withdrawn in its entirety. Form paragraph 8.45 may be used.

Jump to MPEP SourceRejoinder of Claims (MPEP 821.04)Restriction Requirement (MPEP 802-803)Restriction and Election Practice (MPEP Chapter 800)

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.

¶ 8.45 ¶ 8.45 Elected Invention Allowable, Rejoinder of All Previously Withdrawn Claims

Claim [1] allowable. Claim [2 ], previously withdrawn from consideration as a result of a restriction requirement, [3] all the limitations of an allowable claim. Pursuant to the procedures set forth in MPEP § 821.04(a) , the restriction requirement [4] inventions [5], as set forth in the Office action mailed on [6], is hereby withdrawn and claim [7] hereby rejoined and fully examined for patentability under 37 CFR 1.104 . In view of the withdrawal of the restriction requirement, applicant(s) are advised that if any claim presented in a divisional application is anticipated by, or includes all the limitations of, a claim that is allowable in the present application, such claim may be subject to provisional statutory and/or nonstatutory double patenting rejections over the claims of the instant application.

Once the restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler , 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01 .

¶ 8.49 ¶ 8.49 Elected Invention Allowable, Claims Stand Withdrawn, Restriction Maintained

Claim [1] allowable. The restriction requirement [2] , as set forth in the Office action mailed on [3] , has been reconsidered in view of the allowability of claims to the elected invention pursuant to MPEP § 821.04(a) . The restriction requirement is maintained because the nonelected claim(s) do not require all the limitations of an allowable claim.

¶ 8.50 ¶ 8.50 Elected Invention Allowable, Some Claims No Longer Considered Withdrawn

Claim [1] allowable. The restriction requirement [2] , as set forth in the Office action mailed on [3] , has been reconsidered in view of the allowability of claims to the elected invention pursuant to MPEP § 821.04(a) . The restriction requirement is hereby withdrawn as to any claim that requires all the limitations of an allowable claim. Specifically, the restriction requirement of [4] is [5] . Claim [6] , directed to [7] no longer withdrawn from consideration because the claim(s) requires all the limitations of an allowable claim. However, claim [8] , directed to [9] withdrawn from consideration because [10] require all the limitations of an allowable claim.

In view of the above noted withdrawal of the restriction requirement, applicant is advised that if any claim presented in a divisional application is anticipated by, or includes all the limitations of, a claim that is allowable in the present application, such claim may be subject to provisional statutory and/or nonstatutory double patenting rejections over the claims of the instant application.

Once a restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler , 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01 .

¶ 8.46 ¶ 8.46 Elected Invention Allowable, Non-elected Claims Canceled, Other Issues Remain Outstanding

Claim [1] allowable. The restriction requirement [2] inventions [3] , as set forth in the Office action mailed on [4] , has been reconsidered in view of the allowability of claims to the elected invention pursuant to MPEP § 821.04(a) . The restriction requirement is hereby withdrawn as to any claim that requires all the limitations of an allowable claim . Specifically, the restriction requirement of [5] is [6] . Claim [7] , which required all the limitations of an allowable claim, previously withdrawn from consideration as a result of the restriction requirement, [8] canceled by applicant in the reply filed on [9] . The canceled, nonelected claim(s) may be reinstated by applicant if submitted in a timely filed amendment in reply to this action. Upon entry of the amendment, such amended claim(s) will be examined for patentability under 37 CFR 1.104 .

In view of the withdrawal of the restriction requirement as set forth above, applicant(s) are advised that if any claim presented in a divisional application is anticipated by, or includes all the limitations of, a claim that is allowable in the present application, such claim may be subject to provisional statutory and/or nonstatutory double patenting rejections over the claims of the instant application.

Once the restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler , 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01 .

¶ 8.47 ¶ 8.47 Elected Invention Allowable, Non-elected Claims Canceled, Before Final Rejection, No Outstanding Issues Remaining

Claim [1] allowable. The restriction requirement [2] inventions [3] , as set forth in the Office action mailed on [4] , has been reconsidered in view of the allowability of claims to the elected invention pursuant to MPEP § 821.04(a) . The restriction requirement is hereby withdrawn as to any claim that requires all the limitations of an allowable claim. Specifically, the restriction requirement of [5] is [6] . Claim [7] , which required all the limitations of an allowable claim, previously withdrawn from consideration as a result of the restriction requirement, [8] canceled by applicant in the reply filed on [9] . The canceled, nonelected claim(s) may be reinstated by applicant if submitted in an amendment, limited to the addition of such claim(s), filed within a time period of TWO MONTHS from the mailing date of this letter. Upon entry of the amendment, such amended claim(s) will be examined for patentability under 37 CFR 1.104 . If NO such amendment is submitted within the set time period, the application will be passed to issue. PROSECUTION ON THE MERITS IS OTHERWISE CLOSED.

In view of the withdrawal of the restriction requirement as to the linked inventions, applicant(s) are advised that if any claim presented in a divisional application is anticipated by, or includes all the limitations of, a claim that is allowable in the present application, such claim may be subject to provisional statutory and/or nonstatutory double patenting rejections over the claims of the instant application.

Once the restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler , 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01 .

¶ 8.03 ¶ 8.03 In Condition for Allowance, Non-elected Claims Withdrawn with Traverse

This application is in condition for allowance except for the presence of claim [1] directed to an invention non-elected with traverse in the reply filed on [2] . Applicant is given TWO MONTHS from the date of this letter to cancel the noted claims or take other appropriate action ( 37 CFR 1.144 ). Failure to take action during this period will be treated as authorization to cancel the noted claims by Examiner’s Amendment and pass the case to issue. Extensions of time under 37 CFR 1.136(a) will not be permitted since this application will be passed to issue.

The prosecution of this case is closed except for consideration of the above matter.

Citations

Primary topicCitation
Election of Species
Examination Procedures
Restriction and Election
Safe Harbor for Divisional
Withdrawn Claims
35 U.S.C. § 121
Election of Species
Examination Procedures
Restriction and Election
Safe Harbor for Divisional
Withdrawn Claims
37 CFR § 1.104
37 CFR § 1.116
37 CFR § 1.121
37 CFR § 1.312
Election of Species
Examination Procedures
Restriction and Election
Safe Harbor for Divisional
Withdrawn Claims
MPEP § 804.01
Restriction Requirement (MPEP 802-803)MPEP § 806.05(j)
Form Paragraph § 8.03
Form Paragraph § 8.43
Election Requirement (MPEP 808, 818)
Linking Claims (MPEP 809)
Rejoinder of Claims (MPEP 821.04)
Restriction Requirement (MPEP 802-803)
Withdrawn Claims
Form Paragraph § 8.45
Election Requirement (MPEP 808, 818)
Linking Claims (MPEP 809)
Withdrawn Claims
Form Paragraph § 8.46
Election Requirement (MPEP 808, 818)
Restriction Requirement (MPEP 802-803)
Withdrawn Claims
Form Paragraph § 8.47
Restriction Requirement (MPEP 802-803)Form Paragraph § 8.47.01
Election Requirement (MPEP 808, 818)
Linking Claims (MPEP 809)
Withdrawn Claims
Form Paragraph § 8.49
Election Requirement (MPEP 808, 818)
Linking Claims (MPEP 809)
Withdrawn Claims
Form Paragraph § 8.50

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: 2026-01-17