MPEP § 2154.01(b) — Determining When Subject Matter Was Effectively Filed Under AIA 35 U.S.C. 102(d) (Annotated Rules)

§2154.01(b) Determining When Subject Matter Was Effectively Filed Under AIA 35 U.S.C. 102(d)

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

This page consolidates and annotates all enforceable requirements under MPEP § 2154.01(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.

Determining When Subject Matter Was Effectively Filed Under AIA 35 U.S.C. 102(d)

This section addresses Determining When Subject Matter Was Effectively Filed Under AIA 35 U.S.C. 102(d). Primary authority: 35 U.S.C. 100, 35 U.S.C. 102, and 35 U.S.C. 102(d). Contains: 2 requirements, 1 prohibition, 1 permission, and 8 other statements.

Key Rules

Topic

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

5 rules
StatutoryInformativeAlways
[mpep-2154-01-b-bc7791d616ba7ce74b9ed568]
U.S. Patent Document Is Prior Art Under AIA 102(a)(2)
Note:
A U.S. patent, publication, or WIPO application is prior art if it describes the subject matter as of its filing date or a prior-filed application's filing date.

AIA 35 U.S.C. 102(d) provides that a U.S. patent, U.S. patent application publication, or WIPO published application (“U.S. patent document”) is prior art under AIA 35 U.S.C. 102(a)(2) with respect to any subject matter described in the patent or published application as of either its actual filing date (AIA 35 U.S.C. 102(d)(1)), or the filing date of a prior application to which there is a priority or benefit claim (AIA 35 U.S.C. 102(d)(2)). For prior art determinations under AIA 35 U.S.C. 102, a reference patent document need only meet the “ministerial requirements” of 35 U.S.C. 119 and 120, and the provisional or other earlier application(s) to which the reference patent document claims a right of priority or benefit must “describe[] the subject matter” relied upon in the reference patent document as prior art. Penumbra, Inc. v. RapidPulse, Inc., 2023 USPQ2d 292, IPR2021-01466, Paper 34 (March 10, 2023) (precedential as to section II.E.3). The “ministerial requirements” of 35 U.S.C. 119 and 120 are: (1) containing a priority or benefit claim to the prior-filed application; (2) being filed within the applicable filing period requirement (copending with or within twelve months of the earlier filing, as applicable); and (3) having a common inventor or joint inventor or being by the same applicant. See MPEP § 211 et. seq.

Jump to MPEP SourceAIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Published Application as Prior ArtPrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
StatutoryInformativeAlways
[mpep-2154-01-b-9507aca3060c8aa3acaa2c0e]
Written Description Requirement for Prior Art Under AIA 102(a)(2)
Note:
The written description of a prior application must describe the subject matter relied upon as prior art under AIA 35 U.S.C. 102(d).

AIA 35 U.S.C. 102(d) provides that a U.S. patent, U.S. patent application publication, or WIPO published application (“U.S. patent document”) is prior art under AIA 35 U.S.C. 102(a)(2) with respect to any subject matter described in the patent or published application as of either its actual filing date (AIA 35 U.S.C. 102(d)(1)), or the filing date of a prior application to which there is a priority or benefit claim (AIA 35 U.S.C. 102(d)(2)). For prior art determinations under AIA 35 U.S.C. 102, a reference patent document need only meet the “ministerial requirements” of 35 U.S.C. 119 and 120, and the provisional or other earlier application(s) to which the reference patent document claims a right of priority or benefit must “describe[] the subject matter” relied upon in the reference patent document as prior art. Penumbra, Inc. v. RapidPulse, Inc., 2023 USPQ2d 292, IPR2021-01466, Paper 34 (March 10, 2023) (precedential as to section II.E.3). The “ministerial requirements” of 35 U.S.C. 119 and 120 are: (1) containing a priority or benefit claim to the prior-filed application; (2) being filed within the applicable filing period requirement (copending with or within twelve months of the earlier filing, as applicable); and (3) having a common inventor or joint inventor or being by the same applicant. See MPEP § 211 et. seq.

Jump to MPEP SourceAIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Effectively Filed Date for 102(a)(2)Prior Art Under 102(a)(2) – Earlier Filed Applications (MPEP 2154)
StatutoryInformativeAlways
[mpep-2154-01-b-83d60b5146a1f55c5be0d476]
Effective Filing Date for Prior Art Purposes
Note:
The date a patent or published application was effectively filed is used for prior art purposes, without evaluating if claims are actually entitled to priority or benefit under specific U.S. statutes.

The AIA draws a distinction between actually being entitled to priority to, or the benefit of, a prior-filed application according to the definition of “effective filing date” of a claimed invention in AIA 35 U.S.C. 100(i)(1)(B), and merely being entitled to claim priority to, or the benefit of, a prior-filed application according to the use of “effectively filed” in AIA 35 U.S.C. 102(d). As a result of this distinction, the question of whether a patent or published application is actually entitled to priority or benefit with respect to any of its claims is not at issue in determining the date the patent or published application was “effectively filed” for prior art purposes. Thus, there is no need to evaluate whether any claim of a U.S. patent document is actually entitled to priority or benefit under 35 U.S.C. 119, 120, 121, 365, or 386 when applying such a document as prior art. “[T]he requirement that one of the claims in the patent [document]… be supported by the written description of the provisional application in compliance with pre-AIA 35 U.S.C. 112, first paragraph (or AIA 35 U.S.C. § 112(a)) is not applicable when examining an application subject to the first inventor to file provisions of the AIA.” Penumbra, 2023 USPQ2d at 15 (emphasis added) (quoting Memorandum re: Critical Reference Date Under pre-AIA 35 U.S.C. § 102(e) (April 5, 2018)). In other words, the requirement stated in Dynamic Drinkware, LLC, v. National Graphics, Inc., 800 F.3d 1375, 116 USPQ2d 1045 (Fed. Cir. 2015) does not apply to AIA 35 U.S.C. 102(d). See MPEP § 2136.03 for the reference date under pre-AIA 35 U.S.C. 102(e) of U.S. patents, U.S. application publications, and international application publications entitled to the benefit of the filing date of prior application under 35 U.S.C. 119(e), 120, 121, or 365(c).

Jump to MPEP SourceAIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)Article 19 Amendment Scope
StatutoryRequiredAlways
[mpep-2154-01-b-506018733a3c27fc9669aa34]
Prior Filed Application Must Describe Subject Matter for Rejection
Note:
A prior-filed application relied upon in a rejection must describe the subject matter from the U.S. patent document, but does not need to meet enablement requirements.

AIA 35 U.S.C. 102(d) requires that a prior-filed application to which a priority or benefit claim is made must describe the subject matter from the U.S. patent document relied upon in a rejection. However, AIA 35 U.S.C. 102(d) does not require that this description meet the enablement requirements of 35 U.S.C. 112(a). As discussed previously with respect to AIA 35 U.S.C. 102(a)(1), the Office does not view the AIA as changing the extent to which a claimed invention must be described for a prior art document to anticipate the claimed invention under AIA 35 U.S.C. 102.

Jump to MPEP SourceAIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)AIA vs Pre-AIA Practice
StatutoryInformativeAlways
[mpep-2154-01-b-19c7708abf19cb91a21a7da7]
Effective Filing Date for Prior Art Under AIA 102(d)
Note:
Determines when a U.S. patent document is effective as prior art based on the filing date of its earliest priority application under 35 U.S.C. 119 or 365.

The AIA also eliminates the so-called Hilmer doctrine. Under the Hilmer doctrine, pre-AIA 35 U.S.C. 102(e) limited the effective filing date for U.S. patents (and published applications) as prior art to their earliest U.S. filing date. In re Hilmer, 359 F.2d 859, 149 USPQ 480 (CCPA 1966). In contrast, AIA 35 U.S.C. 102(d) provides that if the U.S. patent document claims priority to one or more prior-filed foreign or international applications under 35 U.S.C. 119 or 365, the patent or published application was effectively filed on the filing date of the earliest such application that describes the subject matter. Therefore, if the subject matter relied upon is described in the application to which there is a priority or benefit claim, the U.S. patent document is effective as prior art as of the filing date of the earliest such application, regardless of where filed. When examining an application to which the AIA changes in 35 U.S.C. 102 and 103 do not apply, Office personnel will continue to apply the Hilmer doctrine, and foreign priority dates may not be used in determining pre-AIA 35 U.S.C. 102(e) prior art dates. Note that the international filing date of a published PCT application may be the pre-AIA 35 U.S.C. 102(e) prior art date under pre-AIA law under certain circumstances. See MPEP § 2136.

Jump to MPEP SourceAIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)Article 19 Amendment Scope
Topic

Determining Whether Application Is AIA or Pre-AIA

3 rules
StatutoryInformativeAlways
[mpep-2154-01-b-0be81e4da25c059eb9eb26ca]
Distinguishing Effective Filing for Priority vs Actual Entitlement
Note:
The rule clarifies the difference between being entitled to priority based on an effective filing date and merely claiming priority under AIA 35 U.S.C. 102(d).

The AIA draws a distinction between actually being entitled to priority to, or the benefit of, a prior-filed application according to the definition of “effective filing date” of a claimed invention in AIA 35 U.S.C. 100(i)(1)(B), and merely being entitled to claim priority to, or the benefit of, a prior-filed application according to the use of “effectively filed” in AIA 35 U.S.C. 102(d). As a result of this distinction, the question of whether a patent or published application is actually entitled to priority or benefit with respect to any of its claims is not at issue in determining the date the patent or published application was “effectively filed” for prior art purposes. Thus, there is no need to evaluate whether any claim of a U.S. patent document is actually entitled to priority or benefit under 35 U.S.C. 119, 120, 121, 365, or 386 when applying such a document as prior art. “[T]he requirement that one of the claims in the patent [document]… be supported by the written description of the provisional application in compliance with pre-AIA 35 U.S.C. 112, first paragraph (or AIA 35 U.S.C. § 112(a)) is not applicable when examining an application subject to the first inventor to file provisions of the AIA.” Penumbra, 2023 USPQ2d at 15 (emphasis added) (quoting Memorandum re: Critical Reference Date Under pre-AIA 35 U.S.C. § 102(e) (April 5, 2018)). In other words, the requirement stated in Dynamic Drinkware, LLC, v. National Graphics, Inc., 800 F.3d 1375, 116 USPQ2d 1045 (Fed. Cir. 2015) does not apply to AIA 35 U.S.C. 102(d). See MPEP § 2136.03 for the reference date under pre-AIA 35 U.S.C. 102(e) of U.S. patents, U.S. application publications, and international application publications entitled to the benefit of the filing date of prior application under 35 U.S.C. 119(e), 120, 121, or 365(c).

Jump to MPEP SourceDetermining Whether Application Is AIA or Pre-AIAAIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)PCT Claims Format
StatutoryRequiredAlways
[mpep-2154-01-b-19fb31c111ca2acb8d6dda0f]
Claimed Invention Must Be Described Completely for Anticipation
Note:
The Office maintains that the AIA does not change the requirement for a prior art document to fully describe the claimed invention in order to anticipate it under 35 U.S.C. 102.

AIA 35 U.S.C. 102(d) requires that a prior-filed application to which a priority or benefit claim is made must describe the subject matter from the U.S. patent document relied upon in a rejection. However, AIA 35 U.S.C. 102(d) does not require that this description meet the enablement requirements of 35 U.S.C. 112(a). As discussed previously with respect to AIA 35 U.S.C. 102(a)(1), the Office does not view the AIA as changing the extent to which a claimed invention must be described for a prior art document to anticipate the claimed invention under AIA 35 U.S.C. 102.

Jump to MPEP SourceDetermining Whether Application Is AIA or Pre-AIADetermining AIA vs Pre-AIA Applicability (MPEP 2159)Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
StatutoryInformativeAlways
[mpep-2154-01-b-a87a855c6dc728e439f8b476]
Pre-AIA Effective Filing Date Determined by Earliest U.S. Filing
Note:
Under the Hilmer doctrine, pre-AIA 35 U.S.C. 102(e) limited the effective filing date for U.S. patents as prior art to their earliest U.S. filing date.

The AIA also eliminates the so-called Hilmer doctrine. Under the Hilmer doctrine, pre-AIA 35 U.S.C. 102(e) limited the effective filing date for U.S. patents (and published applications) as prior art to their earliest U.S. filing date. In re Hilmer, 359 F.2d 859, 149 USPQ 480 (CCPA 1966). In contrast, AIA 35 U.S.C. 102(d) provides that if the U.S. patent document claims priority to one or more prior-filed foreign or international applications under 35 U.S.C. 119 or 365, the patent or published application was effectively filed on the filing date of the earliest such application that describes the subject matter. Therefore, if the subject matter relied upon is described in the application to which there is a priority or benefit claim, the U.S. patent document is effective as prior art as of the filing date of the earliest such application, regardless of where filed. When examining an application to which the AIA changes in 35 U.S.C. 102 and 103 do not apply, Office personnel will continue to apply the Hilmer doctrine, and foreign priority dates may not be used in determining pre-AIA 35 U.S.C. 102(e) prior art dates. Note that the international filing date of a published PCT application may be the pre-AIA 35 U.S.C. 102(e) prior art date under pre-AIA law under certain circumstances. See MPEP § 2136.

Jump to MPEP SourceDetermining Whether Application Is AIA or Pre-AIAInternational Filing DatePre-AIA 102(e) – Earlier US Applications (MPEP 2136)
Topic

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

2 rules
StatutoryInformativeAlways
[mpep-2154-01-b-1ff1fdf51a8178ec5ce7fae6]
Requirement for Effective Filing Under AIA 102(d)
Note:
The rule states that the requirement of a claim being supported by the written description in compliance with pre-AIA 35 U.S.C. 112 is not applicable when examining an application subject to the first inventor to file provisions of the AIA.

The AIA draws a distinction between actually being entitled to priority to, or the benefit of, a prior-filed application according to the definition of “effective filing date” of a claimed invention in AIA 35 U.S.C. 100(i)(1)(B), and merely being entitled to claim priority to, or the benefit of, a prior-filed application according to the use of “effectively filed” in AIA 35 U.S.C. 102(d). As a result of this distinction, the question of whether a patent or published application is actually entitled to priority or benefit with respect to any of its claims is not at issue in determining the date the patent or published application was “effectively filed” for prior art purposes. Thus, there is no need to evaluate whether any claim of a U.S. patent document is actually entitled to priority or benefit under 35 U.S.C. 119, 120, 121, 365, or 386 when applying such a document as prior art. “[T]he requirement that one of the claims in the patent [document]… be supported by the written description of the provisional application in compliance with pre-AIA 35 U.S.C. 112, first paragraph (or AIA 35 U.S.C. § 112(a)) is not applicable when examining an application subject to the first inventor to file provisions of the AIA.” Penumbra, 2023 USPQ2d at 15 (emphasis added) (quoting Memorandum re: Critical Reference Date Under pre-AIA 35 U.S.C. § 102(e) (April 5, 2018)). In other words, the requirement stated in Dynamic Drinkware, LLC, v. National Graphics, Inc., 800 F.3d 1375, 116 USPQ2d 1045 (Fed. Cir. 2015) does not apply to AIA 35 U.S.C. 102(d). See MPEP § 2136.03 for the reference date under pre-AIA 35 U.S.C. 102(e) of U.S. patents, U.S. application publications, and international application publications entitled to the benefit of the filing date of prior application under 35 U.S.C. 119(e), 120, 121, or 365(c).

Jump to MPEP SourcePre-AIA 102(e) – Earlier US Applications (MPEP 2136)AIA vs Pre-AIA PracticeDetermining Whether Application Is AIA or Pre-AIA
StatutoryPermittedAlways
[mpep-2154-01-b-afd0c96a2ead1eadffd2853b]
International Filing Date as Pre-AIA Prior Art
Note:
The international filing date of a published PCT application may serve as the pre-AIA 102(e) prior art date under certain circumstances.

The AIA also eliminates the so-called Hilmer doctrine. Under the Hilmer doctrine, pre-AIA 35 U.S.C. 102(e) limited the effective filing date for U.S. patents (and published applications) as prior art to their earliest U.S. filing date. In re Hilmer, 359 F.2d 859, 149 USPQ 480 (CCPA 1966). In contrast, AIA 35 U.S.C. 102(d) provides that if the U.S. patent document claims priority to one or more prior-filed foreign or international applications under 35 U.S.C. 119 or 365, the patent or published application was effectively filed on the filing date of the earliest such application that describes the subject matter. Therefore, if the subject matter relied upon is described in the application to which there is a priority or benefit claim, the U.S. patent document is effective as prior art as of the filing date of the earliest such application, regardless of where filed. When examining an application to which the AIA changes in 35 U.S.C. 102 and 103 do not apply, Office personnel will continue to apply the Hilmer doctrine, and foreign priority dates may not be used in determining pre-AIA 35 U.S.C. 102(e) prior art dates. Note that the international filing date of a published PCT application may be the pre-AIA 35 U.S.C. 102(e) prior art date under pre-AIA law under certain circumstances. See MPEP § 2136.

Jump to MPEP SourcePre-AIA 102(e) – Earlier US Applications (MPEP 2136)International Filing DatePCT Application as 102(a)(2) Prior Art
Topic

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

2 rules
StatutoryInformativeAlways
[mpep-2154-01-b-40abad7084eb5aa7496095da]
Elimination of Hilmer Doctrine for Pre-AIA 102(e)
Note:
The AIA changes how pre-AIA 35 U.S.C. 102(e) prior art is determined, eliminating the Hilmer doctrine which limited effective filing dates to earliest U.S. filings.

The AIA also eliminates the so-called Hilmer doctrine. Under the Hilmer doctrine, pre-AIA 35 U.S.C. 102(e) limited the effective filing date for U.S. patents (and published applications) as prior art to their earliest U.S. filing date. In re Hilmer, 359 F.2d 859, 149 USPQ 480 (CCPA 1966). In contrast, AIA 35 U.S.C. 102(d) provides that if the U.S. patent document claims priority to one or more prior-filed foreign or international applications under 35 U.S.C. 119 or 365, the patent or published application was effectively filed on the filing date of the earliest such application that describes the subject matter. Therefore, if the subject matter relied upon is described in the application to which there is a priority or benefit claim, the U.S. patent document is effective as prior art as of the filing date of the earliest such application, regardless of where filed. When examining an application to which the AIA changes in 35 U.S.C. 102 and 103 do not apply, Office personnel will continue to apply the Hilmer doctrine, and foreign priority dates may not be used in determining pre-AIA 35 U.S.C. 102(e) prior art dates. Note that the international filing date of a published PCT application may be the pre-AIA 35 U.S.C. 102(e) prior art date under pre-AIA law under certain circumstances. See MPEP § 2136.

Jump to MPEP SourcePre-AIA 102(e) – Earlier US Applications (MPEP 2136)AIA vs Pre-AIA PracticeDetermining Whether Application Is AIA or Pre-AIA
StatutoryProhibitedAlways
[mpep-2154-01-b-d1709f6eeec807727bad977b]
Hilmer Doctrine Continues for Pre-AIA Applications
Note:
Office personnel will continue to apply the Hilmer doctrine when examining applications not subject to AIA changes, and foreign priority dates cannot be used to determine pre-AIA 102(e) prior art dates.

The AIA also eliminates the so-called Hilmer doctrine. Under the Hilmer doctrine, pre-AIA 35 U.S.C. 102(e) limited the effective filing date for U.S. patents (and published applications) as prior art to their earliest U.S. filing date. In re Hilmer, 359 F.2d 859, 149 USPQ 480 (CCPA 1966). In contrast, AIA 35 U.S.C. 102(d) provides that if the U.S. patent document claims priority to one or more prior-filed foreign or international applications under 35 U.S.C. 119 or 365, the patent or published application was effectively filed on the filing date of the earliest such application that describes the subject matter. Therefore, if the subject matter relied upon is described in the application to which there is a priority or benefit claim, the U.S. patent document is effective as prior art as of the filing date of the earliest such application, regardless of where filed. When examining an application to which the AIA changes in 35 U.S.C. 102 and 103 do not apply, Office personnel will continue to apply the Hilmer doctrine, and foreign priority dates may not be used in determining pre-AIA 35 U.S.C. 102(e) prior art dates. Note that the international filing date of a published PCT application may be the pre-AIA 35 U.S.C. 102(e) prior art date under pre-AIA law under certain circumstances. See MPEP § 2136.

Jump to MPEP SourcePre-AIA 102(e) – Earlier US Applications (MPEP 2136)Foreign Priority Affecting Effective DatePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
Topic

Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)

1 rules
StatutoryInformativeAlways
[mpep-2154-01-b-2a28099f6e2bfa4e1890a223]
Application Subject to FITF Provisions
Note:
This rule applies to applications subject to the first inventor to file (FITF) provisions of the AIA, guiding examination under 35 U.S.C. 102.

[Editor Note: This MPEP section is only 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 § 2131MPEP § 2138 for examination of applications subject to pre-AIA 35 U.S.C. 102.]

Jump to MPEP SourcePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Statutory Authority for ExaminationAIA vs Pre-AIA Practice
Topic

Right of Priority (Paris Convention)

1 rules
StatutoryRequiredAlways
[mpep-2154-01-b-e848ddca1e334c2ed079081c]
Reference Patent Must Describe Prior Art
Note:
A reference patent document must describe the subject matter relied upon as prior art in a provisional or earlier application claiming priority or benefit.

AIA 35 U.S.C. 102(d) provides that a U.S. patent, U.S. patent application publication, or WIPO published application (“U.S. patent document”) is prior art under AIA 35 U.S.C. 102(a)(2) with respect to any subject matter described in the patent or published application as of either its actual filing date (AIA 35 U.S.C. 102(d)(1)), or the filing date of a prior application to which there is a priority or benefit claim (AIA 35 U.S.C. 102(d)(2)). For prior art determinations under AIA 35 U.S.C. 102, a reference patent document need only meet the “ministerial requirements” of 35 U.S.C. 119 and 120, and the provisional or other earlier application(s) to which the reference patent document claims a right of priority or benefit must “describe[] the subject matter” relied upon in the reference patent document as prior art. Penumbra, Inc. v. RapidPulse, Inc., 2023 USPQ2d 292, IPR2021-01466, Paper 34 (March 10, 2023) (precedential as to section II.E.3). The “ministerial requirements” of 35 U.S.C. 119 and 120 are: (1) containing a priority or benefit claim to the prior-filed application; (2) being filed within the applicable filing period requirement (copending with or within twelve months of the earlier filing, as applicable); and (3) having a common inventor or joint inventor or being by the same applicant. See MPEP § 211 et. seq.

Jump to MPEP SourceRight of Priority (Paris Convention)Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Foreign Priority Claims
Topic

12-Month Priority Period

1 rules
StatutoryInformativeAlways
[mpep-2154-01-b-787fd714db527ee8a5890407]
Ministerial Requirements for Priority and Benefit Claims
Note:
The rule outlines the conditions that must be met for a U.S. patent document to serve as prior art under AIA 35 U.S.C. 102(d), including containing a priority or benefit claim, being filed within the applicable period, and having common inventors.

AIA 35 U.S.C. 102(d) provides that a U.S. patent, U.S. patent application publication, or WIPO published application (“U.S. patent document”) is prior art under AIA 35 U.S.C. 102(a)(2) with respect to any subject matter described in the patent or published application as of either its actual filing date (AIA 35 U.S.C. 102(d)(1)), or the filing date of a prior application to which there is a priority or benefit claim (AIA 35 U.S.C. 102(d)(2)). For prior art determinations under AIA 35 U.S.C. 102, a reference patent document need only meet the “ministerial requirements” of 35 U.S.C. 119 and 120, and the provisional or other earlier application(s) to which the reference patent document claims a right of priority or benefit must “describe[] the subject matter” relied upon in the reference patent document as prior art. Penumbra, Inc. v. RapidPulse, Inc., 2023 USPQ2d 292, IPR2021-01466, Paper 34 (March 10, 2023) (precedential as to section II.E.3). The “ministerial requirements” of 35 U.S.C. 119 and 120 are: (1) containing a priority or benefit claim to the prior-filed application; (2) being filed within the applicable filing period requirement (copending with or within twelve months of the earlier filing, as applicable); and (3) having a common inventor or joint inventor or being by the same applicant. See MPEP § 211 et. seq.

Jump to MPEP Source12-Month Priority PeriodAssignee as Applicant SignatureApplicant and Assignee Filing Under AIA
Topic

Article 19 Amendment Scope

1 rules
StatutoryInformativeAlways
[mpep-2154-01-b-ff50aad1c103893de2ed8e6d]
Provisional Description Supports Patent Claims Not Required Under AIA
Note:
Under the AIA, the requirement that a patent claim be supported by the written description of a provisional application is not applicable.

The AIA draws a distinction between actually being entitled to priority to, or the benefit of, a prior-filed application according to the definition of “effective filing date” of a claimed invention in AIA 35 U.S.C. 100(i)(1)(B), and merely being entitled to claim priority to, or the benefit of, a prior-filed application according to the use of “effectively filed” in AIA 35 U.S.C. 102(d). As a result of this distinction, the question of whether a patent or published application is actually entitled to priority or benefit with respect to any of its claims is not at issue in determining the date the patent or published application was “effectively filed” for prior art purposes. Thus, there is no need to evaluate whether any claim of a U.S. patent document is actually entitled to priority or benefit under 35 U.S.C. 119, 120, 121, 365, or 386 when applying such a document as prior art. “[T]he requirement that one of the claims in the patent [document]… be supported by the written description of the provisional application in compliance with pre-AIA 35 U.S.C. 112, first paragraph (or AIA 35 U.S.C. § 112(a)) is not applicable when examining an application subject to the first inventor to file provisions of the AIA.” Penumbra, 2023 USPQ2d at 15 (emphasis added) (quoting Memorandum re: Critical Reference Date Under pre-AIA 35 U.S.C. § 102(e) (April 5, 2018)). In other words, the requirement stated in Dynamic Drinkware, LLC, v. National Graphics, Inc., 800 F.3d 1375, 116 USPQ2d 1045 (Fed. Cir. 2015) does not apply to AIA 35 U.S.C. 102(d). See MPEP § 2136.03 for the reference date under pre-AIA 35 U.S.C. 102(e) of U.S. patents, U.S. application publications, and international application publications entitled to the benefit of the filing date of prior application under 35 U.S.C. 119(e), 120, 121, or 365(c).

Jump to MPEP SourceArticle 19 Amendment ScopePCT Description RequirementsReceiving Office (RO/US)
Topic

International Filing Date

1 rules
StatutoryInformativeAlways
[mpep-2154-01-b-eef6fe4f3174ab9904bcd751]
AIA 35 U.S.C. 102(d) Reference Date Not Subject to Dynamic Drinkware Priority Rule
Note:
The requirement that a claim be supported by the written description of a provisional application does not apply when examining an AIA application for prior art purposes.

The AIA draws a distinction between actually being entitled to priority to, or the benefit of, a prior-filed application according to the definition of “effective filing date” of a claimed invention in AIA 35 U.S.C. 100(i)(1)(B), and merely being entitled to claim priority to, or the benefit of, a prior-filed application according to the use of “effectively filed” in AIA 35 U.S.C. 102(d). As a result of this distinction, the question of whether a patent or published application is actually entitled to priority or benefit with respect to any of its claims is not at issue in determining the date the patent or published application was “effectively filed” for prior art purposes. Thus, there is no need to evaluate whether any claim of a U.S. patent document is actually entitled to priority or benefit under 35 U.S.C. 119, 120, 121, 365, or 386 when applying such a document as prior art. “[T]he requirement that one of the claims in the patent [document]… be supported by the written description of the provisional application in compliance with pre-AIA 35 U.S.C. 112, first paragraph (or AIA 35 U.S.C. § 112(a)) is not applicable when examining an application subject to the first inventor to file provisions of the AIA.” Penumbra, 2023 USPQ2d at 15 (emphasis added) (quoting Memorandum re: Critical Reference Date Under pre-AIA 35 U.S.C. § 102(e) (April 5, 2018)). In other words, the requirement stated in Dynamic Drinkware, LLC, v. National Graphics, Inc., 800 F.3d 1375, 116 USPQ2d 1045 (Fed. Cir. 2015) does not apply to AIA 35 U.S.C. 102(d). See MPEP § 2136.03 for the reference date under pre-AIA 35 U.S.C. 102(e) of U.S. patents, U.S. application publications, and international application publications entitled to the benefit of the filing date of prior application under 35 U.S.C. 119(e), 120, 121, or 365(c).

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Citations

Primary topicCitation
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)35 U.S.C. § 100
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Article 19 Amendment Scope
Determining Whether Application Is AIA or Pre-AIA
International Filing Date
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
35 U.S.C. § 100(i)(1)(B)
12-Month Priority Period
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Determining Whether Application Is AIA or Pre-AIA
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
Right of Priority (Paris Convention)
35 U.S.C. § 102
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Determining Whether Application Is AIA or Pre-AIA
35 U.S.C. § 102(a)(1)
12-Month Priority Period
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Right of Priority (Paris Convention)
35 U.S.C. § 102(a)(2)
12-Month Priority Period
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Article 19 Amendment Scope
Determining Whether Application Is AIA or Pre-AIA
International Filing Date
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
Right of Priority (Paris Convention)
35 U.S.C. § 102(d)
12-Month Priority Period
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Right of Priority (Paris Convention)
35 U.S.C. § 102(d)(1)
12-Month Priority Period
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Right of Priority (Paris Convention)
35 U.S.C. § 102(d)(2)
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Article 19 Amendment Scope
Determining Whether Application Is AIA or Pre-AIA
International Filing Date
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
35 U.S.C. § 102(e)
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Article 19 Amendment Scope
Determining Whether Application Is AIA or Pre-AIA
International Filing Date
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
35 U.S.C. § 112
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Article 19 Amendment Scope
Determining Whether Application Is AIA or Pre-AIA
International Filing Date
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
35 U.S.C. § 112(a)
12-Month Priority Period
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Article 19 Amendment Scope
Determining Whether Application Is AIA or Pre-AIA
International Filing Date
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
Right of Priority (Paris Convention)
35 U.S.C. § 119
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Article 19 Amendment Scope
Determining Whether Application Is AIA or Pre-AIA
International Filing Date
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
35 U.S.C. § 119(e)
12-Month Priority Period
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Right of Priority (Paris Convention)
MPEP § 211
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)MPEP § 2131
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Determining Whether Application Is AIA or Pre-AIA
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
MPEP § 2136
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Article 19 Amendment Scope
Determining Whether Application Is AIA or Pre-AIA
International Filing Date
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
MPEP § 2136.03
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)MPEP § 2138
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)MPEP § 2159
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Determining Whether Application Is AIA or Pre-AIA
Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
In re Hilmer, 359 F.2d 859, 149 USPQ 480 (CCPA 1966)

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