MPEP § 406 — Death of Patent Practitioner (Annotated Rules)

§406 Death of Patent Practitioner

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

This page consolidates and annotates all enforceable requirements under MPEP § 406, 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.

Death of Patent Practitioner

This section addresses Death of Patent Practitioner. Contains: 1 prohibition, 1 guidance statement, and 2 other statements.

Key Rules

Topic

Power of Attorney Requirements

2 rules
MPEP GuidanceInformativeAlways
[mpep-406-fc0219d7a03e1c62906cc956]
Death Terminates Power of Attorney
Note:
The power of attorney for a patent practitioner is revoked upon their death and cannot be transferred to a substitute.

The power of attorney of a patent practitioner will be revoked or terminated by his or her death. The patent practitioner may not appoint a “substitute” and any attempt by the patent practitioner to appoint a “substitute” patent practitioner whose power is intended to survive his or her own will not be recognized by the Office.

Jump to MPEP SourcePower of Attorney RequirementsRevocation of Power of AttorneyPower of Attorney
MPEP GuidanceProhibitedAlways
[mpep-406-d5f29ebd732c765c5cdaeb32]
Patent Practitioner Cannot Appoint Substitute
Note:
A patent practitioner may not appoint a substitute and any attempt to appoint a substitute whose power is intended to survive their death will not be recognized by the Office.

The power of attorney of a patent practitioner will be revoked or terminated by his or her death. The patent practitioner may not appoint a “substitute” and any attempt by the patent practitioner to appoint a “substitute” patent practitioner whose power is intended to survive his or her own will not be recognized by the Office.

Jump to MPEP SourcePower of Attorney RequirementsPractitioner Recognition and ConductRevocation of Power of Attorney
Topic

Examiner's Action (37 CFR 1.104)

1 rules
MPEP GuidanceInformativeAlways
[mpep-406-b3d6146d131cc132283fc598]
Copy of Office Action Sent to Appointer Upon Practitioner Death
Note:
When a sole practitioner dies, the examiner sends a copy of the office action to the person who appointed the deceased practitioner while continuing correspondence with their office.

If notification of the death of the sole practitioner of record is received by the Office, correspondence continues to be held with the office of the deceased practitioner but a copy of the Office action is also mailed to the person who originally appointed the practitioner. In such an Office action, the examiner should add form paragraph 4.03.

Jump to MPEP SourceExaminer's Action (37 CFR 1.104)Examination ProceduresForm Paragraph Usage
Topic

Form Paragraph Usage

1 rules
MPEP GuidanceRecommendedAlways
[mpep-406-759bcb60593461a4d676df9c]
Examiner Must Add Form Paragraph 4.03 in Office Actions After Practitioner Death
Note:
When a patent practitioner dies, the examiner must include form paragraph 4.03 in all office actions.

If notification of the death of the sole practitioner of record is received by the Office, correspondence continues to be held with the office of the deceased practitioner but a copy of the Office action is also mailed to the person who originally appointed the practitioner. In such an Office action, the examiner should add form paragraph 4.03.

Jump to MPEP SourceForm Paragraph UsageForm ParagraphsExaminer's Action (37 CFR 1.104)

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.

¶ 4.03 ¶ 4.03 Death of Patent Practitioner

Notice of the death of the attorney or agent of record has come to the attention of this Office. Since the power of attorney is therefore terminated, this action is being mailed to the office of the patent practitioner and to the party who originally appointed the deceased patent practitioner. A new registered attorney or agent may be appointed.

Citations

Primary topicCitation
Examiner's Action (37 CFR 1.104)
Form Paragraph Usage
Form Paragraph § 4.03

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