MPEP § 2146.03(a) — Provisional Rejection (Obviousness) Under 35 U.S.C. 103(a) Using Provisional Prior Art Under Pre-AIA 35 U.S.C. 102(e) (Annotated Rules)

§2146.03(a) Provisional Rejection (Obviousness) Under 35 U.S.C. 103(a) Using Provisional Prior Art Under Pre-AIA 35 U.S.C. 102(e)

USPTO MPEP version: BlueIron's Update: 2026-01-10

This page consolidates and annotates all enforceable requirements under MPEP § 2146.03(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.

Provisional Rejection (Obviousness) Under 35 U.S.C. 103(a) Using Provisional Prior Art Under Pre-AIA 35 U.S.C. 102(e)

This section addresses Provisional Rejection (Obviousness) Under 35 U.S.C. 103(a) Using Provisional Prior Art Under Pre-AIA 35 U.S.C. 102(e). Primary authority: 35 U.S.C. 100, 35 U.S.C. 122(b), and 35 U.S.C. 103(a). Contains: 1 requirement, 1 guidance statement, and 11 other statements.

Key Rules

Topic

Obviousness

10 rules
StatutoryRequiredAlways
[mpep-2146-03-a-58d785e30e099336e012106f]
Unpublished Application Confidentiality Requirement
Note:
The confidential status of unpublished applications under 35 U.S.C. 122 must be maintained unless the application is disqualified under pre-AIA 35 U.S.C. 103(c).

Where two applications of different inventive entities are copending, not published under 35 U.S.C. 122(b), and the filing dates differ, a provisional rejection under pre-AIA 35 U.S.C. 103(a) based on provisional prior art under pre-AIA 35 U.S.C. 102(e) should be made in the later filed application unless the application has been disqualified under pre-AIA 35 U.S.C. 103(c). See MPEP § 2146.03 for examination procedure with respect to pre-AIA 35 U.S.C. 103(c). See also MPEP § 2136.01 for examination procedure in determining when provisional rejections are appropriate. Otherwise the confidential status of unpublished application, or any part thereof, under 35 U.S.C. 122 must be maintained. Such a rejection alerts the applicant that the applicant can expect a nonprovisional rejection on the same ground if one of the applications issues and also lets applicant know that action must be taken to avoid the rejection.

Jump to MPEP SourceObviousnessAssignee as Applicant SignatureApplicant and Assignee Filing Under AIA
StatutoryInformativeAlways
[mpep-2146-03-a-d29e40ae1ca03591d1f14e3f]
Provisional Rejection for Obviousness Under Pre-AIA 103(a)
Note:
This rule outlines the application of provisional rejection based on obviousness under 35 U.S.C. 103(a) for patents filed before November 29, 1999 and granted before December 10, 2004.

The following examples are illustrative of the application of 35 U.S.C. 103(a) in applications filed prior to November 29, 1999 for which a patent was granted prior to December 10, 2004:

Jump to MPEP SourceObviousnessPrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
StatutoryInformativeAlways
[mpep-2146-03-a-8dea48277a988ea52f5e0efd]
Provisional Rejection Based on Provisional Prior Art
Note:
This rule requires that a provisional rejection under 35 U.S.C. 103(a) be made in the later-filed application based on provisional prior art under pre-AIA 35 U.S.C. 102(e).

In situation (2.) above, the result is a provisional rejection under 35 U.S.C. 103(a) made in the later-filed application based on provisional prior art under pre-AIA 35 U.S.C. 102(e). The rejection is provisional since the subject matter and the prior art are pending applications.

Jump to MPEP SourceObviousnessPrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
StatutoryInformativeAlways
[mpep-2146-03-a-c3a550fc0b7562c6c280ae60]
Provisional Obviousness Rejection Based on Pending Applications
Note:
A provisional rejection under 35 U.S.C. 103(a) is made in a later-filed application based on provisional prior art from pending applications.

In situation (2.) above, the result is a provisional rejection under 35 U.S.C. 103(a) made in the later-filed application based on provisional prior art under pre-AIA 35 U.S.C. 102(e). The rejection is provisional since the subject matter and the prior art are pending applications.

Jump to MPEP SourceObviousnessPrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
StatutoryInformativeAlways
[mpep-2146-03-a-0404b88c977e1ce920c4299a]
Rejections Based on Provisional Prior Art Under Pre-AIA 102(e)
Note:
This rule outlines the rejection of applications pending after December 10, 2004, based on prior art under pre-AIA 35 U.S.C. 102(e) using obviousness standards from 35 U.S.C. 103(a).

The following examples are illustrative of rejections under 35 U.S.C. 103(a) based on prior art under pre-AIA 35 U.S.C. 102(e) in applications that are pending on or after December 10, 2004:

Jump to MPEP SourceObviousnessPrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
StatutoryInformativeAlways
[mpep-2146-03-a-aa62cd5002b89917ceef9c39]
Provisional Rejection Based on Provisional Prior Art
Note:
The later-filed application is provisionally rejected under 35 U.S.C. 103(a) based on provisional prior art from the earlier-filed application under pre-AIA 35 U.S.C. 102(e).

In situation (2.) above, the result is a provisional rejection under 35 U.S.C. 103(a) made in the later-filed application based on provisional prior art under pre-AIA 35 U.S.C. 102(e) (the earlier-filed application). The rejection is provisional since the subject matter and the prior art are pending applications.

Jump to MPEP SourceObviousnessPrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
StatutoryInformativeAlways
[mpep-2146-03-a-3b50d349bcdaa8f4a77b94c3]
Provisional Obviousness Rejection Using Pending Applications
Note:
The rejection is provisional and based on pending applications for both the subject matter and prior art under pre-AIA 35 U.S.C. 102(e) and 103(a).

In situation (2.) above, the result is a provisional rejection under 35 U.S.C. 103(a) made in the later-filed application based on provisional prior art under pre-AIA 35 U.S.C. 102(e) (the earlier-filed application). The rejection is provisional since the subject matter and the prior art are pending applications.

Jump to MPEP SourceObviousnessPrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
StatutoryInformativeAlways
[mpep-2146-03-a-e8e77e355ecea7e5bc5b594a]
Employee B’s Invention Must Be Disclosed Under Joint Research Agreement
Note:
Employee B's invention, which was made after the joint research agreement with assignees I and J, must be disclosed as resulting from activities within the scope of the agreement.

Example 5. Assumption: Employee A works for assignee I and Employee B works for assignee J. There is a joint research agreement, pursuant to pre-AIA 35 U.S.C. 103(c), between assignees I and J. Employees A and B each filed an application as set forth below. Employee B’s invention claimed in his application was made after the joint research agreement was entered into, and it was made as a result of activities undertaken within the scope of the joint agreement. Employee B’s application discloses assignees I and J as the parties to the joint research agreement. Employee B’s application, which is pending on or after December 10, 2004, is being examined.

Jump to MPEP SourceObviousnessJoint Research Agreements (MPEP 2156)Obviousness Under AIA (MPEP 2158)
StatutoryInformativeAlways
[mpep-2146-03-a-750fce58ec9ca3386cfd444c]
Invention Made Under Joint Research Agreement Must Disclose Both Assignees
Note:
Employee B’s invention, made under the joint research agreement between assignees I and J, must disclose both assignees as parties to the agreement.

Example 5. Assumption: Employee A works for assignee I and Employee B works for assignee J. There is a joint research agreement, pursuant to pre-AIA 35 U.S.C. 103(c), between assignees I and J. Employees A and B each filed an application as set forth below. Employee B’s invention claimed in his application was made after the joint research agreement was entered into, and it was made as a result of activities undertaken within the scope of the joint agreement. Employee B’s application discloses assignees I and J as the parties to the joint research agreement. Employee B’s application, which is pending on or after December 10, 2004, is being examined.

Jump to MPEP SourceObviousnessJoint Research Agreements (MPEP 2156)Obviousness Under AIA (MPEP 2158)
StatutoryInformativeAlways
[mpep-2146-03-a-d7c5cbb8a0e68f9402c2b97b]
Application Pending on or After Dec 10, 2004 Examined
Note:
Employee B’s application filed after December 10, 2004 is being examined under the joint research agreement between assignees I and J.

Example 5. Assumption: Employee A works for assignee I and Employee B works for assignee J. There is a joint research agreement, pursuant to pre-AIA 35 U.S.C. 103(c), between assignees I and J. Employees A and B each filed an application as set forth below. Employee B’s invention claimed in his application was made after the joint research agreement was entered into, and it was made as a result of activities undertaken within the scope of the joint agreement. Employee B’s application discloses assignees I and J as the parties to the joint research agreement. Employee B’s application, which is pending on or after December 10, 2004, is being examined.

Jump to MPEP SourceObviousnessJoint Research Agreements (MPEP 2156)Obviousness Under AIA (MPEP 2158)
Topic

Joint Research Agreements (MPEP 2156)

3 rules
StatutoryInformativeAlways
[mpep-2146-03-a-0e093ab994fc91cf2c156a18]
Requirement for Joint Research Agreement Disclosure
Note:
Employee B must disclose the joint research agreement between assignees I and J in his application.

Example 5. Assumption: Employee A works for assignee I and Employee B works for assignee J. There is a joint research agreement, pursuant to pre-AIA 35 U.S.C. 103(c), between assignees I and J. Employees A and B each filed an application as set forth below. Employee B’s invention claimed in his application was made after the joint research agreement was entered into, and it was made as a result of activities undertaken within the scope of the joint agreement. Employee B’s application discloses assignees I and J as the parties to the joint research agreement. Employee B’s application, which is pending on or after December 10, 2004, is being examined.

Jump to MPEP SourceJoint Research Agreements (MPEP 2156)Obviousness Under AIA (MPEP 2158)Obviousness Under Pre-AIA (MPEP 2141-2146)
StatutoryInformativeAlways
[mpep-2146-03-a-f4370dcce61eede2013a40f6]
Invention Resulting from Joint Agreement Must Be Disclosed
Note:
An invention made under a joint research agreement must be disclosed in the application filed by an employee involved in such activities.

Example 5. Assumption: Employee A works for assignee I and Employee B works for assignee J. There is a joint research agreement, pursuant to pre-AIA 35 U.S.C. 103(c), between assignees I and J. Employees A and B each filed an application as set forth below. Employee B’s invention claimed in his application was made after the joint research agreement was entered into, and it was made as a result of activities undertaken within the scope of the joint agreement. Employee B’s application discloses assignees I and J as the parties to the joint research agreement. Employee B’s application, which is pending on or after December 10, 2004, is being examined.

Jump to MPEP SourceJoint Research Agreements (MPEP 2156)ObviousnessObviousness Under AIA (MPEP 2158)
StatutoryInformativeAlways
[mpep-2146-03-a-0f8b48a38b02107c85566d80]
Disclosure of Joint Research Agreement Parties Required
Note:
Employee B’s application must disclose assignees I and J as the parties to the joint research agreement.

Example 5. Assumption: Employee A works for assignee I and Employee B works for assignee J. There is a joint research agreement, pursuant to pre-AIA 35 U.S.C. 103(c), between assignees I and J. Employees A and B each filed an application as set forth below. Employee B’s invention claimed in his application was made after the joint research agreement was entered into, and it was made as a result of activities undertaken within the scope of the joint agreement. Employee B’s application discloses assignees I and J as the parties to the joint research agreement. Employee B’s application, which is pending on or after December 10, 2004, is being examined.

Jump to MPEP SourceJoint Research Agreements (MPEP 2156)ObviousnessObviousness Under AIA (MPEP 2158)
Topic

AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)

1 rules
StatutoryInformativeAlways
[mpep-2146-03-a-0b6bd0edc76c84adf053b026]
Rule Not Applicable to FITF Provision Applications
Note:
This rule does not apply to applications subject to examination under the first inventor to file (FITF) provisions of the AIA.

[Editor Note: This MPEP section is not applicable to applications subject to examination under the first inventor to file (FITF) provisions of the AIA as set forth in 35 U.S.C. 100 (note). See MPEP § 2159 et seq. to determine whether an application is subject to examination under the FITF provisions, and MPEP § 2150 et seq. for examination of applications subject to those provisions. See MPEP § 2154 et seq. for the examination of applications subject to the first inventor to file provisions of the AIA involving, inter alia, rejections based on U.S. patent documents.]

35 U.S.C.AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)Statutory Authority for Examination
Topic

Obviousness Under AIA (MPEP 2158)

1 rules
StatutoryRecommendedAlways
[mpep-2146-03-a-7e5a51725f31493e1c553f7a]
Provisional Rejection for Later Filed Application
Note:
A provisional rejection based on provisional prior art should be made in the later filed application unless disqualified under pre-AIA 35 U.S.C. 103(c).

Where two applications of different inventive entities are copending, not published under 35 U.S.C. 122(b), and the filing dates differ, a provisional rejection under pre-AIA 35 U.S.C. 103(a) based on provisional prior art under pre-AIA 35 U.S.C. 102(e) should be made in the later filed application unless the application has been disqualified under pre-AIA 35 U.S.C. 103(c). See MPEP § 2146.03 for examination procedure with respect to pre-AIA 35 U.S.C. 103(c). See also MPEP § 2136.01 for examination procedure in determining when provisional rejections are appropriate. Otherwise the confidential status of unpublished application, or any part thereof, under 35 U.S.C. 122 must be maintained. Such a rejection alerts the applicant that the applicant can expect a nonprovisional rejection on the same ground if one of the applications issues and also lets applicant know that action must be taken to avoid the rejection.

Jump to MPEP SourceObviousness Under AIA (MPEP 2158)Obviousness Under Pre-AIA (MPEP 2141-2146)AIA vs Pre-AIA Practice
Topic

Assignee as Applicant Signature

1 rules
StatutoryRequiredAlways
[mpep-2146-03-a-dcdbb5a58002f92815a51cbe]
Provisional Rejection for Copending Applications
Note:
Alerts applicants that a nonprovisional rejection will follow if one application issues, requiring action to avoid the rejection.

Where two applications of different inventive entities are copending, not published under 35 U.S.C. 122(b), and the filing dates differ, a provisional rejection under pre-AIA 35 U.S.C. 103(a) based on provisional prior art under pre-AIA 35 U.S.C. 102(e) should be made in the later filed application unless the application has been disqualified under pre-AIA 35 U.S.C. 103(c). See MPEP § 2146.03 for examination procedure with respect to pre-AIA 35 U.S.C. 103(c). See also MPEP § 2136.01 for examination procedure in determining when provisional rejections are appropriate. Otherwise the confidential status of unpublished application, or any part thereof, under 35 U.S.C. 122 must be maintained. Such a rejection alerts the applicant that the applicant can expect a nonprovisional rejection on the same ground if one of the applications issues and also lets applicant know that action must be taken to avoid the rejection.

Jump to MPEP SourceAssignee as Applicant SignatureApplicant and Assignee Filing Under AIAObviousness
Topic

Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)

1 rules
StatutoryPermittedAlways
[mpep-2146-03-a-a42ab6d19e40b1e1fecfcc9c]
Opportunity to Overcome Provisional Rejection Based on Earlier Filed Application
Note:
Applicant can analyze the rejection and avoid loss of rights by arguing patentability, combining applications, filing affidavits, or demonstrating common ownership.
This gives applicant the opportunity to analyze the propriety of the rejection and possibly avoid the loss of rights to desired subject matter. Provisional rejections under pre-AIA 35 U.S.C. 103(a) based on provisional prior art under pre-AIA 35 U.S.C. 102(e) are rejections applied to copending applications wherein each application has a common assignee or a common inventor. The application with the earlier pre-AIA 35 U.S.C. 102(e) date, if patented or published, would constitute prior art against the other application. The rejection can be overcome by:
  • (A) Arguing patentability over the earlier filed application;
  • (B) Combining the subject matter of the copending applications into a single application claiming benefit under 35 U.S.C. 120 of the prior applications and abandoning the copending applications (note that a claim in a subsequently filed application that relies on a combination of prior applications may not be entitled to the benefit of an earlier filing date under 35 U.S.C. 120 if the earlier filed application does not contain a disclosure which complies with 35 U.S.C. 112 for the claim in the subsequently filed application. Studiengesellschaft Kohle m.b.H. v. Shell Oil Co., 112 F.3d 1561, 42 USPQ2d 1674 (Fed. Cir. 1997));
  • (C) Filing an affidavit or declaration under 37 CFR 1.132 showing that any unclaimed invention disclosed in the copending application was derived from the inventor of the other application and is thus not invention “by another” (see MPEP §§ 715.01(a), 715.01(c), and 716.10);
  • (D) Filing an affidavit or declaration under 37 CFR 1.131(a) showing a date of invention prior to the pre-AIA 35 U.S.C. 102(e) date of the copending application. See MPEP § 715; or
  • (E) For an application that is pending on or after December 10, 2004, a showing that (1) the prior art and the claimed invention were, at the time the invention was made, owned by the same person or subject to an obligation of assignment to the same person, or (2) the subject matter is disqualified under pre-AIA 35 U.S.C. 103(c) (i.e., common ownership or joint research agreement disqualification).
Jump to MPEP SourcePre-AIA 102(e) – Earlier US Applications (MPEP 2136)Patented Prior Art (MPEP 2152.02(a))Assignee as Applicant Signature
Topic

Antedating Reference – Pre-AIA (MPEP 2136.05)

1 rules
StatutoryPermittedAlways
[mpep-2146-03-a-060dd31b0bfecfa7ef1418c8]
Terminal Disclaimer and Affidavit to Overcome Obviousness Rejection in Common Ownership Situation
Note:
A terminal disclaimer and affidavit can be used to overcome an obviousness rejection if the earlier filed application has been published or matured into a patent.

Where the applications are claiming interfering subject matter as defined in 37 CFR 41.203(a), a terminal disclaimer and an affidavit or declaration under 37 CFR 1.131(c) may be used to overcome a rejection under 35 U.S.C. 103(a) in a common ownership situation if the earlier filed application has been published or matured into a patent. See MPEP § 718.

Jump to MPEP Source · 37 CFR 41.203(a)Antedating Reference – Pre-AIA (MPEP 2136.05)Common Ownership Exception – 102(b)(2)(C)Joint Research Agreements (MPEP 2156)
Topic

Requirements for Divisional

1 rules
StatutoryInformativeAlways
[mpep-2146-03-a-e92930cffbc99a71b986f933]
Divisional Application Not Subject to Rejection from Combined Application
Note:
A divisional application resulting from combined copending applications is not subject to provisional or nonprovisional rejection under 35 U.S.C. 103(a) in view of the combined application due to 35 U.S.C. 121 provisions.

If an obviousness rejection based on provisional pre-AIA 35 U.S.C. 102(e) prior art is made and the copending applications are combined into a single application, and the resulting combined application is subject to a restriction requirement, a proper divisional application would not be subject to a provisional or nonprovisional rejection under 35 U.S.C. 103(a) in view of the combined application. This is because the provisions of 35 U.S.C. 121 would preclude the use of a patent issuing from the combined application as a reference against the divisional application. Additionally, the combined application would be a continuation-in-part application entitled to 35 U.S.C. 120 benefit of each of the prior applications. This is illustrated in Example 2, below.

Jump to MPEP SourceRequirements for DivisionalSafe Harbor for DivisionalDivisional Applications (MPEP 201.06)

Citations

Primary topicCitation
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)35 U.S.C. § 100
Assignee as Applicant Signature
Obviousness
Obviousness Under AIA (MPEP 2158)
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
Requirements for Divisional
35 U.S.C. § 102(e)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Assignee as Applicant Signature
Obviousness
Obviousness Under AIA (MPEP 2158)
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
Requirements for Divisional
35 U.S.C. § 103(a)
Assignee as Applicant Signature
Joint Research Agreements (MPEP 2156)
Obviousness
Obviousness Under AIA (MPEP 2158)
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
35 U.S.C. § 103(c)
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)35 U.S.C. § 112
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
Requirements for Divisional
35 U.S.C. § 120
Requirements for Divisional35 U.S.C. § 121
Assignee as Applicant Signature
Obviousness
Obviousness Under AIA (MPEP 2158)
35 U.S.C. § 122
Assignee as Applicant Signature
Obviousness
Obviousness Under AIA (MPEP 2158)
35 U.S.C. § 122(b)
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)37 CFR § 1.131(a)
Antedating Reference – Pre-AIA (MPEP 2136.05)37 CFR § 1.131(c)
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)37 CFR § 1.132
Antedating Reference – Pre-AIA (MPEP 2136.05)37 CFR § 41.203(a)
Assignee as Applicant Signature
Obviousness
Obviousness Under AIA (MPEP 2158)
MPEP § 2136.01
Assignee as Applicant Signature
Obviousness
Obviousness Under AIA (MPEP 2158)
MPEP § 2146.03
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)MPEP § 2150
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)MPEP § 2154
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)MPEP § 2159
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)MPEP § 715
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)MPEP § 715.01(a)
Antedating Reference – Pre-AIA (MPEP 2136.05)MPEP § 718

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: 2026-01-10