MPEP § 402.02(b) — Appointment in Application Filed Before September 16, 2012 (Annotated Rules)

§402.02(b) Appointment in Application Filed Before September 16, 2012

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

This page consolidates and annotates all enforceable requirements under MPEP § 402.02(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.

Appointment in Application Filed Before September 16, 2012

This section addresses Appointment in Application Filed Before September 16, 2012. Primary authority: 37 CFR 1.32(b), 37 CFR 1.32, and 37 CFR 1.41(b). Contains: 2 requirements, 1 prohibition, 2 guidance statements, 1 permission, and 4 other statements.

Key Rules

Topic

AIA Effective Dates

4 rules
StatutoryRequiredAlways
[mpep-402-02-b-a96b769c8178990c58e48878]
Power of Attorney Must Be Signed by Applicant or Assignee
Note:
For applications filed before September 16, 2012, a power of attorney must be signed by the applicant for patent or the assignee of their entire interest.

For applications filed before September 16, 2012, pre-AIA 37 CFR 1.32(b) sets forth that a power of attorney must be signed by the applicant for patent or the assignee of the entire interest of the applicant.

Jump to MPEP Source · 37 CFR 1.32(b)AIA Effective DatesPOA Form RequirementsPower of Attorney Signature
StatutoryRecommendedAlways
[mpep-402-02-b-cf9a761aeaa6e6c620fda654]
Powers of Attorney Required for Pre-AIA Applications
Note:
Use Form PTO/SB/80 or PTO/SB/81 for powers of attorney in applications filed before September 16, 2012.

Form PTO/SB/80 or PTO/SB/81 (available at www.uspto.gov/patent/patents-forms) should be used for powers of attorney in applications filed before September 16, 2012. Note that the Office does not recommend that practitioners use a combined declaration and power of attorney document, and no longer provides such a form on the USPTO website. Form PTO/SB/81A may be used in a patent that issued from an application filed before September 16, 2012.

Jump to MPEP Source · 37 CFR 1.32AIA Effective DatesPOA Form RequirementsAIA Overview and Effective Dates
StatutoryPermittedAlways
[mpep-402-02-b-e7c4185cc79bdf9833ff6b4b]
Form PTO/SB/81A for Pre-AIA Applications
Note:
Use Form PTO/SB/81A in patents issued from applications filed before September 16, 2012.

Form PTO/SB/80 or PTO/SB/81 (available at www.uspto.gov/patent/patents-forms) should be used for powers of attorney in applications filed before September 16, 2012. Note that the Office does not recommend that practitioners use a combined declaration and power of attorney document, and no longer provides such a form on the USPTO website. Form PTO/SB/81A may be used in a patent that issued from an application filed before September 16, 2012.

Jump to MPEP Source · 37 CFR 1.32AIA Effective DatesPOA Form RequirementsAIA Overview and Effective Dates
MPEP GuidanceInformativeAlways
[mpep-402-02-b-8d7f57435112b40816c009f4]
Requirement for Power of Attorney Appointment After September 15, 2012
Note:
The rule requires that a power of attorney be appointed in an application filed on or after September 16, 2012.

[Editor Note: See MPEP § 402.02(a) for information pertaining to appointment of a power of attorney in an application filed on or after September 16, 2012.]

Jump to MPEP SourceAIA Effective DatesAIA Overview and Effective DatesAIA vs Pre-AIA Practice
Topic

POA Form Requirements

3 rules
StatutoryInformativeAlways
[mpep-402-02-b-4accd7c79876525f6af8d0f0]
No Combined Declaration and Power of Attorney Form
Note:
The Office no longer recommends using a combined declaration and power of attorney document for patent applications.

Pursuant to pre-AIA 37 CFR 1.41(b), the word “applicant” refers to the inventor or all of the joint inventors or to the person applying for a patent in place of the inventor under pre-AIA 37 CFR 1.42 (legal representative of deceased inventor), 1.43 (legal representative of a deceased or legally incapacitated inventor), 1.47(a) (joint inventor(s) on behalf of themselves and joint inventor(s) who refuse to join or cannot be reached or found after diligent effort) or 1.47(b) (by assignee, obligated assignee, or person who otherwise shows sufficient proprietary interest whenever all of the inventors refuse to sign or cannot be found or reached after diligent effort). Note that the Office does not recommend that practitioners use a combined declaration and power of attorney document, and no longer provides a combined declaration and power of attorney form on the USPTO website.

Jump to MPEP Source · 37 CFR 1.41(b)POA Form RequirementsPower of Attorney RequirementsPower of Attorney
StatutoryRecommendedAlways
[mpep-402-02-b-aa9cce41f59623e5cc4ce9c1]
Power of Attorney Must Be Signed by Assignee
Note:
The power of attorney for an application filed before September 16, 2012, must be signed by the assignee of the entire interest to ensure proper client representation.

While a power of attorney may be signed by the inventor(s), the power of attorney should be signed by the assignee of the entire interest where one exists. Otherwise, the assignee may be paying the bill, while the inventor is providing the power of attorney, thereby possibly raising an issue as to who is the practitioner’s client. Additionally, relationships between an assignee and the inventors may deteriorate. It is not uncommon in these situations for inventors to stop cooperating and in some cases file powers of attorney in an attempt to control prosecution of the application. A power of attorney by the assignee of the entire interest revokes all powers given by the applicant and prior assignees if the assignee establishes their right to take action as provided in pre-AIA 37 CFR 3.71 and pre-AIA 37 CFR 3.73(b). See MPEP § 324.

Jump to MPEP Source · 37 CFR 3.71POA Form RequirementsAssignee as Applicant SignaturePower of Attorney by Assignee
StatutoryInformativeAlways
[mpep-402-02-b-cbc5057dd49eaf37d712ab4a]
Combined Declaration and POA No Longer Recommended
Note:
The Office no longer recommends using a combined declaration and power of attorney document for applications filed before September 16, 2012.

Form PTO/SB/80 or PTO/SB/81 (available at www.uspto.gov/patent/patents-forms) should be used for powers of attorney in applications filed before September 16, 2012. Note that the Office does not recommend that practitioners use a combined declaration and power of attorney document, and no longer provides such a form on the USPTO website. Form PTO/SB/81A may be used in a patent that issued from an application filed before September 16, 2012.

Jump to MPEP Source · 37 CFR 1.32POA Form RequirementsPower of Attorney RequirementsPower of Attorney
Topic

AIA Oath/Declaration Requirements (37 CFR 1.63)

3 rules
StatutoryRequiredAlways
[mpep-402-02-b-051c9cf708199da809562d5f]
Requirement for Identifying Power of Attorney Changes in Continuation/Divisional Applications
Note:
Applicants must identify any changes in power of attorney after the parent application's filing date when submitting a continuation or divisional application with a declaration from the parent.

When filing a continuation or divisional application with a copy of a declaration from the parent application in accordance with pre-AIA 37 CFR 1.63(d), applicants are required to identify in the continuation or divisional application any change in power of attorney that occurred after the filing of the parent application. See pre-AIA 37 CFR 1.63(d)(4). The Office suggests doing so by submitting a copy of the most recent power of attorney from the parent application in the continuing application to ensure that the Office recognizes the correct power of attorney.

Jump to MPEP Source · 37 CFR 1.63(d)AIA Oath/Declaration Requirements (37 CFR 1.63)Pre-AIA Oath/Declaration RequirementsInventor's Oath/Declaration Requirements
StatutoryInformativeAlways
[mpep-402-02-b-9fc6d46b25966a69b6a16730]
Change in Power of Attorney Required in Continuation/Divisional
Note:
Applicants must identify any change in power of attorney after the parent application's filing date and submit a copy of the most recent power of attorney in the continuation or divisional application.

When filing a continuation or divisional application with a copy of a declaration from the parent application in accordance with pre-AIA 37 CFR 1.63(d), applicants are required to identify in the continuation or divisional application any change in power of attorney that occurred after the filing of the parent application. See pre-AIA 37 CFR 1.63(d)(4). The Office suggests doing so by submitting a copy of the most recent power of attorney from the parent application in the continuing application to ensure that the Office recognizes the correct power of attorney.

Jump to MPEP Source · 37 CFR 1.63(d)AIA Oath/Declaration Requirements (37 CFR 1.63)Pre-AIA Oath/Declaration RequirementsInventor's Oath/Declaration Requirements
StatutoryInformativeAlways
[mpep-402-02-b-11245ff41d5d1140f82d0668]
Requirement for Submitting Recent Power of Attorney
Note:
Applicants must submit the most recent power of attorney from the parent application in a continuation or divisional application to ensure the Office recognizes the correct power of attorney.

When filing a continuation or divisional application with a copy of a declaration from the parent application in accordance with pre-AIA 37 CFR 1.63(d), applicants are required to identify in the continuation or divisional application any change in power of attorney that occurred after the filing of the parent application. See pre-AIA 37 CFR 1.63(d)(4). The Office suggests doing so by submitting a copy of the most recent power of attorney from the parent application in the continuing application to ensure that the Office recognizes the correct power of attorney.

Jump to MPEP Source · 37 CFR 1.63(d)AIA Oath/Declaration Requirements (37 CFR 1.63)Pre-AIA Oath/Declaration RequirementsInventor's Oath/Declaration Requirements
Topic

AIA Definition of Applicant (37 CFR 1.42)

1 rules
StatutoryProhibitedAlways
[mpep-402-02-b-625d5c1297d646049dd93390]
Definition of Applicant Under Pre-AIA Rules
Note:
The rule defines who can be considered an applicant under pre-AIA patent rules, including inventors, legal representatives, and assignees.

Pursuant to pre-AIA 37 CFR 1.41(b), the word “applicant” refers to the inventor or all of the joint inventors or to the person applying for a patent in place of the inventor under pre-AIA 37 CFR 1.42 (legal representative of deceased inventor), 1.43 (legal representative of a deceased or legally incapacitated inventor), 1.47(a) (joint inventor(s) on behalf of themselves and joint inventor(s) who refuse to join or cannot be reached or found after diligent effort) or 1.47(b) (by assignee, obligated assignee, or person who otherwise shows sufficient proprietary interest whenever all of the inventors refuse to sign or cannot be found or reached after diligent effort). Note that the Office does not recommend that practitioners use a combined declaration and power of attorney document, and no longer provides a combined declaration and power of attorney form on the USPTO website.

Jump to MPEP Source · 37 CFR 1.41(b)AIA Definition of Applicant (37 CFR 1.42)Assignee as Applicant SignatureApplicant and Assignee Filing Under AIA
Topic

Assignee as Applicant Signature

1 rules
StatutoryPermittedAlways
[mpep-402-02-b-f043303d1331b2fe0edcd37b]
Power of Attorney by Assignee Required
Note:
A power of attorney should be signed by the assignee to clarify client representation and revoke previous powers.

While a power of attorney may be signed by the inventor(s), the power of attorney should be signed by the assignee of the entire interest where one exists. Otherwise, the assignee may be paying the bill, while the inventor is providing the power of attorney, thereby possibly raising an issue as to who is the practitioner’s client. Additionally, relationships between an assignee and the inventors may deteriorate. It is not uncommon in these situations for inventors to stop cooperating and in some cases file powers of attorney in an attempt to control prosecution of the application. A power of attorney by the assignee of the entire interest revokes all powers given by the applicant and prior assignees if the assignee establishes their right to take action as provided in pre-AIA 37 CFR 3.71 and pre-AIA 37 CFR 3.73(b). See MPEP § 324.

Jump to MPEP Source · 37 CFR 3.71Assignee as Applicant SignaturePower of Attorney by AssigneePower of Attorney Requirements
Topic

Establishing Ownership

1 rules
StatutoryInformativeAlways
[mpep-402-02-b-25a678d77512a1ad745dbabc]
Assignee Power of Attorney Revokes Previous Powers
Note:
An assignee with entire interest can revoke previous powers by establishing their right under pre-AIA 37 CFR 3.71 and 3.73(b).

While a power of attorney may be signed by the inventor(s), the power of attorney should be signed by the assignee of the entire interest where one exists. Otherwise, the assignee may be paying the bill, while the inventor is providing the power of attorney, thereby possibly raising an issue as to who is the practitioner’s client. Additionally, relationships between an assignee and the inventors may deteriorate. It is not uncommon in these situations for inventors to stop cooperating and in some cases file powers of attorney in an attempt to control prosecution of the application. A power of attorney by the assignee of the entire interest revokes all powers given by the applicant and prior assignees if the assignee establishes their right to take action as provided in pre-AIA 37 CFR 3.71 and pre-AIA 37 CFR 3.73(b). See MPEP § 324.

Jump to MPEP Source · 37 CFR 3.71Establishing OwnershipAssignee as Applicant SignatureApplicant and Assignee Filing Under AIA

Citations

Primary topicCitation
AIA Effective Dates37 CFR § 1.32(b)
AIA Definition of Applicant (37 CFR 1.42)
POA Form Requirements
37 CFR § 1.41(b)
AIA Definition of Applicant (37 CFR 1.42)
POA Form Requirements
37 CFR § 1.42
AIA Oath/Declaration Requirements (37 CFR 1.63)37 CFR § 1.63(d)
AIA Oath/Declaration Requirements (37 CFR 1.63)37 CFR § 1.63(d)(4)
Assignee as Applicant Signature
Establishing Ownership
POA Form Requirements
37 CFR § 3.71
Assignee as Applicant Signature
Establishing Ownership
POA Form Requirements
37 CFR § 3.73(b)
Assignee as Applicant Signature
Establishing Ownership
POA Form Requirements
MPEP § 324
AIA Effective DatesMPEP § 402.02(a)

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