MPEP § 323.01(b) — Typographical Errors in Recorded Assignment Document (Annotated Rules)

§323.01(b) Typographical Errors in Recorded Assignment Document

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

This page consolidates and annotates all enforceable requirements under MPEP § 323.01(b), 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.

Typographical Errors in Recorded Assignment Document

This section addresses Typographical Errors in Recorded Assignment Document. Primary authority: 37 CFR 3.41) and 37 CFR 3.41. Contains: 2 requirements, 1 permission, and 1 other statement.

Key Rules

Topic

Who May File Reissue

3 rules
StatutoryPermittedAlways
[mpep-323-01-b-d8ed83613e680365183fcf8b]
Assignee May File Affidavit to Correct Error in Recorded Assignment Document
Note:
If an assignor is unavailable, the assignee can submit an affidavit identifying the error and requesting correction of a recorded assignment document.

If there is an error in the recorded assignment document (or other document affecting title) rather than in the cover sheet, the party responsible for an erroneous document (e.g., the assignor) must either create and record a new document or make corrections to the original document and re-record it. If an assignor is not available to correct an original document or execute a new one, the assignee may submit an affidavit or declaration in which the assignee identifies the error and requests correction. The affidavit or declaration must be accompanied by a copy of the originally recorded papers, a cover sheet, and the required fee for each application or patent to be corrected (37 CFR 3.41). See In re Abacab International Computers Ltd., 21 USPQ2d 1078 (Comm’r Pat. 1987).

Jump to MPEP Source · 37 CFR 3.41)Who May File ReissueReissue Ownership and ConsentReissue Patent Practice
StatutoryRequiredAlways
[mpep-323-01-b-9cc9eaec96341f2c8af838a2]
Affidavit for Correcting Recorded Papers Required
Note:
An affidavit must be submitted along with a copy of the original recorded papers and fees to correct errors in recorded assignment documents.

If there is an error in the recorded assignment document (or other document affecting title) rather than in the cover sheet, the party responsible for an erroneous document (e.g., the assignor) must either create and record a new document or make corrections to the original document and re-record it. If an assignor is not available to correct an original document or execute a new one, the assignee may submit an affidavit or declaration in which the assignee identifies the error and requests correction. The affidavit or declaration must be accompanied by a copy of the originally recorded papers, a cover sheet, and the required fee for each application or patent to be corrected (37 CFR 3.41). See In re Abacab International Computers Ltd., 21 USPQ2d 1078 (Comm’r Pat. 1987).

Jump to MPEP Source · 37 CFR 3.41)Who May File ReissueReissue Ownership and ConsentReissue Patent Practice
StatutoryInformativeAlways
[mpep-323-01-b-d2a3acbdb00471cb7bb821d5]
Assignee May File Correction for Recorded Assignment Error
Note:
If an error is found in a recorded assignment document, the assignee can file a correction with an affidavit identifying the error and submitting the original documents.

If there is an error in the recorded assignment document (or other document affecting title) rather than in the cover sheet, the party responsible for an erroneous document (e.g., the assignor) must either create and record a new document or make corrections to the original document and re-record it. If an assignor is not available to correct an original document or execute a new one, the assignee may submit an affidavit or declaration in which the assignee identifies the error and requests correction. The affidavit or declaration must be accompanied by a copy of the originally recorded papers, a cover sheet, and the required fee for each application or patent to be corrected (37 CFR 3.41). See In re Abacab International Computers Ltd., 21 USPQ2d 1078 (Comm’r Pat. 1987).

Jump to MPEP Source · 37 CFR 3.41)Who May File ReissueReissue Ownership and ConsentReissue Patent Practice
Topic

Reissue Patent Practice

1 rules
StatutoryRequiredAlways
[mpep-323-01-b-c64697347abd9b445e75bba2]
Correction of Recorded Assignment Document Required
Note:
If an error is found in a recorded assignment document, the assignor must either create and record a new document or correct the original and re-record it.

If there is an error in the recorded assignment document (or other document affecting title) rather than in the cover sheet, the party responsible for an erroneous document (e.g., the assignor) must either create and record a new document or make corrections to the original document and re-record it. If an assignor is not available to correct an original document or execute a new one, the assignee may submit an affidavit or declaration in which the assignee identifies the error and requests correction. The affidavit or declaration must be accompanied by a copy of the originally recorded papers, a cover sheet, and the required fee for each application or patent to be corrected (37 CFR 3.41). See In re Abacab International Computers Ltd., 21 USPQ2d 1078 (Comm’r Pat. 1987).

Jump to MPEP Source · 37 CFR 3.41)Reissue Patent PracticeWho May File ReissueReissue Ownership and Consent

Citations

Primary topicCitation
Reissue Patent Practice
Who May File Reissue
37 CFR § 3.41

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