MPEP § 2136.05(b) — Showing The Reference Is Describing An Inventor’s Or At Least One Joint Inventor’s Own Work (Annotated Rules)

§2136.05(b) Showing The Reference Is Describing An Inventor's Or At Least One Joint Inventor's Own Work

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

This page consolidates and annotates all enforceable requirements under MPEP § 2136.05(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.

Showing The Reference Is Describing An Inventor's Or At Least One Joint Inventor's Own Work

This section addresses Showing The Reference Is Describing An Inventor's Or At Least One Joint Inventor's Own Work. Primary authority: 35 U.S.C. 100, 35 U.S.C. 102(e), and 35 U.S.C. 102. Contains: 1 requirement, 1 prohibition, 1 guidance statement, 4 permissions, and 19 other statements.

Key Rules

Topic

Antedating Reference – Pre-AIA (MPEP 2136.05)

14 rules
StatutoryInformativeAlways
[mpep-2136-05-b-59cae515c030eb609b480eed]
Moved to MPEP §2136.05(a) for Pre-AIA 102(e) Overcoming
Note:
Information on overcoming pre-AIA 35 U.S.C. 102(e) rejections has been relocated to MPEP §2136.05(a) for affidavits or declarations under 37 CFR 1.131.

[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. Information pertaining to overcoming pre-AIA 35 U.S.C. 102(e) rejections has been moved to MPEP § 2136.05(a) for affidavits or declarations under 37 CFR 1.131.]

Jump to MPEP Source · 37 CFR 1.131Antedating Reference – Pre-AIA (MPEP 2136.05)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)Statutory Authority for Examination
StatutoryPermittedAlways
[mpep-2136-05-b-4bd2912d9470f1d913afc439]
Affidavit Can Overcome Pre-AIA 102(e) Rejection
Note:
An affidavit under 37 CFR 1.132 can overcome a pre-AIA 102(e) rejection by showing the reference invention is not by another inventor.

A rejection based on pre-AIA 35 U.S.C. 102(e) can be overcome by filing an affidavit or declaration under 37 CFR 1.132 showing that the reference invention is not by “another.” “The fact that an application has named a different inventive entity than a patent does not necessarily make that patent prior art.” Applied Materials Inc. v. Gemini Research Corp., 835 F.2d 279, 15 USPQ2d 1816 (Fed. Cir. 1988). The issue turns on what the evidence of record shows as to who invented the subject matter. In re Whittle, 454 F.2d 1193, 1195, 172 USPQ 535, 537 (CCPA 1972). In fact, even if an inventor's or at least one joint inventor's work was publicly disclosed prior to the patent application, the inventor's or at least one joint inventor's own work may not be used against the application subject to pre-AIA 35 U.S.C. 102 unless there is a time bar under pre-AIA 35 U.S.C. 102(b). In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (citing In re Katz, 687 F.2d 450, 215 USPQ 14 (CCPA 1982)). However, an affidavit or declaration under 37 CFR 1.132 that is only a naked assertion of inventorship and that fails to provide any context, explanation or evidence to support that assertion is insufficient to show that the relied-upon subject matter was the inventor’s own work. See EmeraChem Holdings, LLC v. Volkswagen Grp. of Am., Inc., 859 F.3d 1341, 123 USPQ2d 1146 (Fed. Cir. 2017) (finding that a declaration submitted by inventor Campbell insufficient to establish that he and Guth (now deceased) were inventors of the subject matter disclosed in a patent naming Campbell, Guth, Danziger, and Padron because “[n]othing in the declaration itself, or in addition to the declaration, provides any context, explanation, or evidence to lend credence to the inventor's bare assertion” and more than twenty years had passed since the alleged events occurred. Id. at 1345; 123 USPQ2d at 1149). Therefore, when the unclaimed subject matter of a reference is an inventor's or at least one joint inventor's own invention, a prima facie case based on the patent, U.S. patent application publication, or international application publication, may be overcome by showing that the disclosure is a description of the inventor's or at least one joint inventor's own previous work. Such a showing can be made by proving that the inventor(s) of the U.S. patent, U.S. patent application publication, or the international application publication, was associated with applicant (e.g., same assignee) and learned of the inventor's or at least one joint inventor's invention from the inventor or at least one joint inventor directly or indirectly. In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
StatutoryProhibitedAlways
[mpep-2136-05-b-3897ee5e4008e78fe2f8bb87]
Inventor's Own Work Not Against Application
Note:
An inventor’s publicly disclosed work may not be used against their patent application unless there is a time bar, and any assertion of inventorship must provide context and evidence.

A rejection based on pre-AIA 35 U.S.C. 102(e) can be overcome by filing an affidavit or declaration under 37 CFR 1.132 showing that the reference invention is not by “another.” “The fact that an application has named a different inventive entity than a patent does not necessarily make that patent prior art.” Applied Materials Inc. v. Gemini Research Corp., 835 F.2d 279, 15 USPQ2d 1816 (Fed. Cir. 1988). The issue turns on what the evidence of record shows as to who invented the subject matter. In re Whittle, 454 F.2d 1193, 1195, 172 USPQ 535, 537 (CCPA 1972). In fact, even if an inventor's or at least one joint inventor's work was publicly disclosed prior to the patent application, the inventor's or at least one joint inventor's own work may not be used against the application subject to pre-AIA 35 U.S.C. 102 unless there is a time bar under pre-AIA 35 U.S.C. 102(b). In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (citing In re Katz, 687 F.2d 450, 215 USPQ 14 (CCPA 1982)). However, an affidavit or declaration under 37 CFR 1.132 that is only a naked assertion of inventorship and that fails to provide any context, explanation or evidence to support that assertion is insufficient to show that the relied-upon subject matter was the inventor’s own work. See EmeraChem Holdings, LLC v. Volkswagen Grp. of Am., Inc., 859 F.3d 1341, 123 USPQ2d 1146 (Fed. Cir. 2017) (finding that a declaration submitted by inventor Campbell insufficient to establish that he and Guth (now deceased) were inventors of the subject matter disclosed in a patent naming Campbell, Guth, Danziger, and Padron because “[n]othing in the declaration itself, or in addition to the declaration, provides any context, explanation, or evidence to lend credence to the inventor's bare assertion” and more than twenty years had passed since the alleged events occurred. Id. at 1345; 123 USPQ2d at 1149). Therefore, when the unclaimed subject matter of a reference is an inventor's or at least one joint inventor's own invention, a prima facie case based on the patent, U.S. patent application publication, or international application publication, may be overcome by showing that the disclosure is a description of the inventor's or at least one joint inventor's own previous work. Such a showing can be made by proving that the inventor(s) of the U.S. patent, U.S. patent application publication, or the international application publication, was associated with applicant (e.g., same assignee) and learned of the inventor's or at least one joint inventor's invention from the inventor or at least one joint inventor directly or indirectly. In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(f) – Derivation (MPEP 2137)Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
StatutoryInformativeAlways
[mpep-2136-05-b-850e478c4fceb3ae66a3fe1f]
Declaration Must Provide Context for Inventorship
Note:
A declaration submitted to establish inventorship must provide context, explanation, and evidence to support the inventor's claim. Simply asserting inventorship without supporting details is insufficient.

A rejection based on pre-AIA 35 U.S.C. 102(e) can be overcome by filing an affidavit or declaration under 37 CFR 1.132 showing that the reference invention is not by “another.” “The fact that an application has named a different inventive entity than a patent does not necessarily make that patent prior art.” Applied Materials Inc. v. Gemini Research Corp., 835 F.2d 279, 15 USPQ2d 1816 (Fed. Cir. 1988). The issue turns on what the evidence of record shows as to who invented the subject matter. In re Whittle, 454 F.2d 1193, 1195, 172 USPQ 535, 537 (CCPA 1972). In fact, even if an inventor's or at least one joint inventor's work was publicly disclosed prior to the patent application, the inventor's or at least one joint inventor's own work may not be used against the application subject to pre-AIA 35 U.S.C. 102 unless there is a time bar under pre-AIA 35 U.S.C. 102(b). In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (citing In re Katz, 687 F.2d 450, 215 USPQ 14 (CCPA 1982)). However, an affidavit or declaration under 37 CFR 1.132 that is only a naked assertion of inventorship and that fails to provide any context, explanation or evidence to support that assertion is insufficient to show that the relied-upon subject matter was the inventor’s own work. See EmeraChem Holdings, LLC v. Volkswagen Grp. of Am., Inc., 859 F.3d 1341, 123 USPQ2d 1146 (Fed. Cir. 2017) (finding that a declaration submitted by inventor Campbell insufficient to establish that he and Guth (now deceased) were inventors of the subject matter disclosed in a patent naming Campbell, Guth, Danziger, and Padron because “[n]othing in the declaration itself, or in addition to the declaration, provides any context, explanation, or evidence to lend credence to the inventor's bare assertion” and more than twenty years had passed since the alleged events occurred. Id. at 1345; 123 USPQ2d at 1149). Therefore, when the unclaimed subject matter of a reference is an inventor's or at least one joint inventor's own invention, a prima facie case based on the patent, U.S. patent application publication, or international application publication, may be overcome by showing that the disclosure is a description of the inventor's or at least one joint inventor's own previous work. Such a showing can be made by proving that the inventor(s) of the U.S. patent, U.S. patent application publication, or the international application publication, was associated with applicant (e.g., same assignee) and learned of the inventor's or at least one joint inventor's invention from the inventor or at least one joint inventor directly or indirectly. In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
StatutoryInformativeAlways
[mpep-2136-05-b-3140967813a89ff8ff80d7c1]
Declaration Against Generic Compound Does Not Prove Lack of Species Invention
Note:
A declaration stating an inventor did not use a generic compound does not establish they did not invent the specific species within that compound.

See also In re Carreira, 532 F.2d 1356, 189 USPQ 461 (CCPA 1976) (The examiner rejected claims to a joint application to Carreira, Kyrakakis, Solodar, and Labana under pre-AIA 35 U.S.C. 102(e) and 103 in view of a U.S. patent issued to Tulagin and Carreira or a patent issued to Clark. The applicants submitted declarations under 37 CFR 1.132 by Tulagin and Clark in which each declarant stated he was “not the inventor of the use of compounds having a hydroxyl group in a position ortho to an azo linkage.” The court held that these statements were vague and inconclusive because the declarants did not disclose the use of this generic compound but rather species of this generic compound in their patents and it was the species which met the claims. The declaration that each did not invent the use of the generic compound does not establish that Tulagin and Clark did not invent the use of the species.)

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
StatutoryInformativeAlways
[mpep-2136-05-b-bbddbe25b910269caa0c7c19]
Affidavits and Declarations for Antedating References
Note:
The rule outlines the contents and uses of affidavits and declarations under 37 CFR 1.132 to antedate prior art references.

MPEP § 715.01(a), § 715.01(c), and § 716.10 set forth more information pertaining to the contents and uses of affidavits and declarations under 37 CFR 1.132 for antedating references. See MPEP § 2146 for information pertaining to rejections under pre-AIA 35 U.S.C. 102(e) / 103 and the applicability of pre-AIA 35 U.S.C. 103(c).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Obviousness Under AIA (MPEP 2158)Obviousness Under Pre-AIA (MPEP 2141-2146)
StatutoryInformativeAlways
[mpep-2136-05-b-de851d82ca120ab7ce4253da]
Affidavit Required to Antedate Pre-AIA Reference
Note:
An affidavit from the original inventor is required to antedate a pre-AIA reference and overcome a 102(e) rejection.

See also In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969) (On September 15, 1961, Dewey filed an application disclosing and claiming a time delay protective device for an electric circuit. In disclosing the invention, Dewey completely described, but did not claim, a “gating means 19” invented by Mathews which was usable in the protective device. Dewey and Mathews were coworkers at General Electric Company, the assignee. Mathews filed his application on March 7, 1963, before the Dewey patent issued but almost 18 months after its filing. The Mathews application disclosed that “one illustration of a circuit embodying the present invention is shown in copending patent application S.N. 138,476-Dewey.” The examiner used Dewey to reject all the Mathews claims under pre-AIA 35 U.S.C. 102(e). In response, Mathews submitted an affidavit by Dewey under 37 CFR 1.132. In the affidavit, Dewey stated that he did not invent the gating means 19 but had learned of the gating means through Mathews and that GE attorneys had advised that the gating means be disclosed in Dewey’s application to comply with 35 U.S.C. 112, first paragraph. The examiner argued that the only way to overcome a pre-AIA 35 U.S.C. 102(e) rejection was by submitting an affidavit or declaration under 37 CFR 1.131 to antedate the filing date of the reference. The court reversed the rejection, holding that the totality of the evidence on record showed that Dewey derived his knowledge from Mathews who is “the original, first and sole inventor.”).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(f) – Derivation (MPEP 2137)
StatutoryInformativeAlways
[mpep-2136-05-b-cadfd6299ad823bf5ac4eb57]
Disclosure of Inventor's Contribution Required for Antedating
Note:
The reference must disclose the inventor’s contribution to satisfy antedating requirements under pre-AIA law.

See also In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969) (On September 15, 1961, Dewey filed an application disclosing and claiming a time delay protective device for an electric circuit. In disclosing the invention, Dewey completely described, but did not claim, a “gating means 19” invented by Mathews which was usable in the protective device. Dewey and Mathews were coworkers at General Electric Company, the assignee. Mathews filed his application on March 7, 1963, before the Dewey patent issued but almost 18 months after its filing. The Mathews application disclosed that “one illustration of a circuit embodying the present invention is shown in copending patent application S.N. 138,476-Dewey.” The examiner used Dewey to reject all the Mathews claims under pre-AIA 35 U.S.C. 102(e). In response, Mathews submitted an affidavit by Dewey under 37 CFR 1.132. In the affidavit, Dewey stated that he did not invent the gating means 19 but had learned of the gating means through Mathews and that GE attorneys had advised that the gating means be disclosed in Dewey’s application to comply with 35 U.S.C. 112, first paragraph. The examiner argued that the only way to overcome a pre-AIA 35 U.S.C. 102(e) rejection was by submitting an affidavit or declaration under 37 CFR 1.131 to antedate the filing date of the reference. The court reversed the rejection, holding that the totality of the evidence on record showed that Dewey derived his knowledge from Mathews who is “the original, first and sole inventor.”).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(f) – Derivation (MPEP 2137)
StatutoryInformativeAlways
[mpep-2136-05-b-89d15b089fbc6d084dd19923]
Disclosure of Co-Worker's Invention in Another Application
Note:
If a coworker invents an element used in your application, you must disclose this to avoid prior art rejections under pre-AIA 35 U.S.C. 102(e).

See also In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969) (On September 15, 1961, Dewey filed an application disclosing and claiming a time delay protective device for an electric circuit. In disclosing the invention, Dewey completely described, but did not claim, a “gating means 19” invented by Mathews which was usable in the protective device. Dewey and Mathews were coworkers at General Electric Company, the assignee. Mathews filed his application on March 7, 1963, before the Dewey patent issued but almost 18 months after its filing. The Mathews application disclosed that “one illustration of a circuit embodying the present invention is shown in copending patent application S.N. 138,476-Dewey.” The examiner used Dewey to reject all the Mathews claims under pre-AIA 35 U.S.C. 102(e). In response, Mathews submitted an affidavit by Dewey under 37 CFR 1.132. In the affidavit, Dewey stated that he did not invent the gating means 19 but had learned of the gating means through Mathews and that GE attorneys had advised that the gating means be disclosed in Dewey’s application to comply with 35 U.S.C. 112, first paragraph. The examiner argued that the only way to overcome a pre-AIA 35 U.S.C. 102(e) rejection was by submitting an affidavit or declaration under 37 CFR 1.131 to antedate the filing date of the reference. The court reversed the rejection, holding that the totality of the evidence on record showed that Dewey derived his knowledge from Mathews who is “the original, first and sole inventor.”).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(f) – Derivation (MPEP 2137)
StatutoryInformativeAlways
[mpep-2136-05-b-443e0718a69e30bd718f97d9]
Requirement for Antedating a Pre-AIA Reference
Note:
The rule requires showing that a pre-AIA reference was derived from the inventor's work to overcome a prior art rejection.

See also In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969) (On September 15, 1961, Dewey filed an application disclosing and claiming a time delay protective device for an electric circuit. In disclosing the invention, Dewey completely described, but did not claim, a “gating means 19” invented by Mathews which was usable in the protective device. Dewey and Mathews were coworkers at General Electric Company, the assignee. Mathews filed his application on March 7, 1963, before the Dewey patent issued but almost 18 months after its filing. The Mathews application disclosed that “one illustration of a circuit embodying the present invention is shown in copending patent application S.N. 138,476-Dewey.” The examiner used Dewey to reject all the Mathews claims under pre-AIA 35 U.S.C. 102(e). In response, Mathews submitted an affidavit by Dewey under 37 CFR 1.132. In the affidavit, Dewey stated that he did not invent the gating means 19 but had learned of the gating means through Mathews and that GE attorneys had advised that the gating means be disclosed in Dewey’s application to comply with 35 U.S.C. 112, first paragraph. The examiner argued that the only way to overcome a pre-AIA 35 U.S.C. 102(e) rejection was by submitting an affidavit or declaration under 37 CFR 1.131 to antedate the filing date of the reference. The court reversed the rejection, holding that the totality of the evidence on record showed that Dewey derived his knowledge from Mathews who is “the original, first and sole inventor.”).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(f) – Derivation (MPEP 2137)
StatutoryInformativeAlways
[mpep-2136-05-b-b6d54a6218266c1f8507645a]
Copending Application Can Antedate Invention
Note:
A copending application can be used to antedate an invention if it discloses the same invention as claimed by another inventor.

See also In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969) (On September 15, 1961, Dewey filed an application disclosing and claiming a time delay protective device for an electric circuit. In disclosing the invention, Dewey completely described, but did not claim, a “gating means 19” invented by Mathews which was usable in the protective device. Dewey and Mathews were coworkers at General Electric Company, the assignee. Mathews filed his application on March 7, 1963, before the Dewey patent issued but almost 18 months after its filing. The Mathews application disclosed that “one illustration of a circuit embodying the present invention is shown in copending patent application S.N. 138,476-Dewey.” The examiner used Dewey to reject all the Mathews claims under pre-AIA 35 U.S.C. 102(e). In response, Mathews submitted an affidavit by Dewey under 37 CFR 1.132. In the affidavit, Dewey stated that he did not invent the gating means 19 but had learned of the gating means through Mathews and that GE attorneys had advised that the gating means be disclosed in Dewey’s application to comply with 35 U.S.C. 112, first paragraph. The examiner argued that the only way to overcome a pre-AIA 35 U.S.C. 102(e) rejection was by submitting an affidavit or declaration under 37 CFR 1.131 to antedate the filing date of the reference. The court reversed the rejection, holding that the totality of the evidence on record showed that Dewey derived his knowledge from Mathews who is “the original, first and sole inventor.”).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(f) – Derivation (MPEP 2137)
StatutoryInformativeAlways
[mpep-2136-05-b-92602ad934b44c37487fc9da]
Affidavit Requirement to Antedate Reference
Note:
An affidavit under 37 CFR 1.132 is required to show that a reference does not pre-date an inventor's or joint inventor's work.

See also In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969) (On September 15, 1961, Dewey filed an application disclosing and claiming a time delay protective device for an electric circuit. In disclosing the invention, Dewey completely described, but did not claim, a “gating means 19” invented by Mathews which was usable in the protective device. Dewey and Mathews were coworkers at General Electric Company, the assignee. Mathews filed his application on March 7, 1963, before the Dewey patent issued but almost 18 months after its filing. The Mathews application disclosed that “one illustration of a circuit embodying the present invention is shown in copending patent application S.N. 138,476-Dewey.” The examiner used Dewey to reject all the Mathews claims under pre-AIA 35 U.S.C. 102(e). In response, Mathews submitted an affidavit by Dewey under 37 CFR 1.132. In the affidavit, Dewey stated that he did not invent the gating means 19 but had learned of the gating means through Mathews and that GE attorneys had advised that the gating means be disclosed in Dewey’s application to comply with 35 U.S.C. 112, first paragraph. The examiner argued that the only way to overcome a pre-AIA 35 U.S.C. 102(e) rejection was by submitting an affidavit or declaration under 37 CFR 1.131 to antedate the filing date of the reference. The court reversed the rejection, holding that the totality of the evidence on record showed that Dewey derived his knowledge from Mathews who is “the original, first and sole inventor.”).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(f) – Derivation (MPEP 2137)
StatutoryInformativeAlways
[mpep-2136-05-b-bec74a2af1826cf7c030d3c7]
Disclosure of Gating Means to Comply with Written Description Requirement
Note:
An inventor must disclose the gating means in their application to comply with the written description requirement, even if learned from a coworker.

See also In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969) (On September 15, 1961, Dewey filed an application disclosing and claiming a time delay protective device for an electric circuit. In disclosing the invention, Dewey completely described, but did not claim, a “gating means 19” invented by Mathews which was usable in the protective device. Dewey and Mathews were coworkers at General Electric Company, the assignee. Mathews filed his application on March 7, 1963, before the Dewey patent issued but almost 18 months after its filing. The Mathews application disclosed that “one illustration of a circuit embodying the present invention is shown in copending patent application S.N. 138,476-Dewey.” The examiner used Dewey to reject all the Mathews claims under pre-AIA 35 U.S.C. 102(e). In response, Mathews submitted an affidavit by Dewey under 37 CFR 1.132. In the affidavit, Dewey stated that he did not invent the gating means 19 but had learned of the gating means through Mathews and that GE attorneys had advised that the gating means be disclosed in Dewey’s application to comply with 35 U.S.C. 112, first paragraph. The examiner argued that the only way to overcome a pre-AIA 35 U.S.C. 102(e) rejection was by submitting an affidavit or declaration under 37 CFR 1.131 to antedate the filing date of the reference. The court reversed the rejection, holding that the totality of the evidence on record showed that Dewey derived his knowledge from Mathews who is “the original, first and sole inventor.”).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(f) – Derivation (MPEP 2137)
StatutoryInformativeAlways
[mpep-2136-05-b-1fb711cc9c8532d6c0b41776]
Requirement to Antedate Reference Using Affidavit Under 37 CFR 1.131
Note:
The examiner requires an affidavit under 37 CFR 1.131 to antedate the filing date of a reference in a pre-AIA 35 U.S.C. 102(e) rejection.

See also In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969) (On September 15, 1961, Dewey filed an application disclosing and claiming a time delay protective device for an electric circuit. In disclosing the invention, Dewey completely described, but did not claim, a “gating means 19” invented by Mathews which was usable in the protective device. Dewey and Mathews were coworkers at General Electric Company, the assignee. Mathews filed his application on March 7, 1963, before the Dewey patent issued but almost 18 months after its filing. The Mathews application disclosed that “one illustration of a circuit embodying the present invention is shown in copending patent application S.N. 138,476-Dewey.” The examiner used Dewey to reject all the Mathews claims under pre-AIA 35 U.S.C. 102(e). In response, Mathews submitted an affidavit by Dewey under 37 CFR 1.132. In the affidavit, Dewey stated that he did not invent the gating means 19 but had learned of the gating means through Mathews and that GE attorneys had advised that the gating means be disclosed in Dewey’s application to comply with 35 U.S.C. 112, first paragraph. The examiner argued that the only way to overcome a pre-AIA 35 U.S.C. 102(e) rejection was by submitting an affidavit or declaration under 37 CFR 1.131 to antedate the filing date of the reference. The court reversed the rejection, holding that the totality of the evidence on record showed that Dewey derived his knowledge from Mathews who is “the original, first and sole inventor.”).

Jump to MPEP Source · 37 CFR 1.132Antedating Reference – Pre-AIA (MPEP 2136.05)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)
Topic

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

10 rules
StatutoryInformativeAlways
[mpep-2136-05-b-4c58de6f1d670d508bde2d60]
Affidavit Showing Inventor's Own Work Required to Overcome Prior Art
Note:
An affidavit under 37 CFR 1.132 must prove the reference invention is not by another, showing it was the inventor’s own work.

A rejection based on pre-AIA 35 U.S.C. 102(e) can be overcome by filing an affidavit or declaration under 37 CFR 1.132 showing that the reference invention is not by “another.” “The fact that an application has named a different inventive entity than a patent does not necessarily make that patent prior art.” Applied Materials Inc. v. Gemini Research Corp., 835 F.2d 279, 15 USPQ2d 1816 (Fed. Cir. 1988). The issue turns on what the evidence of record shows as to who invented the subject matter. In re Whittle, 454 F.2d 1193, 1195, 172 USPQ 535, 537 (CCPA 1972). In fact, even if an inventor's or at least one joint inventor's work was publicly disclosed prior to the patent application, the inventor's or at least one joint inventor's own work may not be used against the application subject to pre-AIA 35 U.S.C. 102 unless there is a time bar under pre-AIA 35 U.S.C. 102(b). In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (citing In re Katz, 687 F.2d 450, 215 USPQ 14 (CCPA 1982)). However, an affidavit or declaration under 37 CFR 1.132 that is only a naked assertion of inventorship and that fails to provide any context, explanation or evidence to support that assertion is insufficient to show that the relied-upon subject matter was the inventor’s own work. See EmeraChem Holdings, LLC v. Volkswagen Grp. of Am., Inc., 859 F.3d 1341, 123 USPQ2d 1146 (Fed. Cir. 2017) (finding that a declaration submitted by inventor Campbell insufficient to establish that he and Guth (now deceased) were inventors of the subject matter disclosed in a patent naming Campbell, Guth, Danziger, and Padron because “[n]othing in the declaration itself, or in addition to the declaration, provides any context, explanation, or evidence to lend credence to the inventor's bare assertion” and more than twenty years had passed since the alleged events occurred. Id. at 1345; 123 USPQ2d at 1149). Therefore, when the unclaimed subject matter of a reference is an inventor's or at least one joint inventor's own invention, a prima facie case based on the patent, U.S. patent application publication, or international application publication, may be overcome by showing that the disclosure is a description of the inventor's or at least one joint inventor's own previous work. Such a showing can be made by proving that the inventor(s) of the U.S. patent, U.S. patent application publication, or the international application publication, was associated with applicant (e.g., same assignee) and learned of the inventor's or at least one joint inventor's invention from the inventor or at least one joint inventor directly or indirectly. In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969).

Jump to MPEP Source · 37 CFR 1.132AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
StatutoryInformativeAlways
[mpep-2136-05-b-5e1f086c7ca66eff7fed2b06]
Requirement for Proving Reference Is Inventor's Own Work
Note:
The rule requires showing that a reference invention is not by another inventor, using evidence of record to establish the true inventor.

A rejection based on pre-AIA 35 U.S.C. 102(e) can be overcome by filing an affidavit or declaration under 37 CFR 1.132 showing that the reference invention is not by “another.” “The fact that an application has named a different inventive entity than a patent does not necessarily make that patent prior art.” Applied Materials Inc. v. Gemini Research Corp., 835 F.2d 279, 15 USPQ2d 1816 (Fed. Cir. 1988). The issue turns on what the evidence of record shows as to who invented the subject matter. In re Whittle, 454 F.2d 1193, 1195, 172 USPQ 535, 537 (CCPA 1972). In fact, even if an inventor's or at least one joint inventor's work was publicly disclosed prior to the patent application, the inventor's or at least one joint inventor's own work may not be used against the application subject to pre-AIA 35 U.S.C. 102 unless there is a time bar under pre-AIA 35 U.S.C. 102(b). In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (citing In re Katz, 687 F.2d 450, 215 USPQ 14 (CCPA 1982)). However, an affidavit or declaration under 37 CFR 1.132 that is only a naked assertion of inventorship and that fails to provide any context, explanation or evidence to support that assertion is insufficient to show that the relied-upon subject matter was the inventor’s own work. See EmeraChem Holdings, LLC v. Volkswagen Grp. of Am., Inc., 859 F.3d 1341, 123 USPQ2d 1146 (Fed. Cir. 2017) (finding that a declaration submitted by inventor Campbell insufficient to establish that he and Guth (now deceased) were inventors of the subject matter disclosed in a patent naming Campbell, Guth, Danziger, and Padron because “[n]othing in the declaration itself, or in addition to the declaration, provides any context, explanation, or evidence to lend credence to the inventor's bare assertion” and more than twenty years had passed since the alleged events occurred. Id. at 1345; 123 USPQ2d at 1149). Therefore, when the unclaimed subject matter of a reference is an inventor's or at least one joint inventor's own invention, a prima facie case based on the patent, U.S. patent application publication, or international application publication, may be overcome by showing that the disclosure is a description of the inventor's or at least one joint inventor's own previous work. Such a showing can be made by proving that the inventor(s) of the U.S. patent, U.S. patent application publication, or the international application publication, was associated with applicant (e.g., same assignee) and learned of the inventor's or at least one joint inventor's invention from the inventor or at least one joint inventor directly or indirectly. In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969).

Jump to MPEP Source · 37 CFR 1.132AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
StatutoryInformativeAlways
[mpep-2136-05-b-705fd8fb56728e57b57f2a09]
Affidavit Showing Inventor's Own Work Required to Overcome Prior Art
Note:
An affidavit must demonstrate that the referenced invention was the inventor’s own work, providing context and evidence to overcome a prior art rejection.

A rejection based on pre-AIA 35 U.S.C. 102(e) can be overcome by filing an affidavit or declaration under 37 CFR 1.132 showing that the reference invention is not by “another.” “The fact that an application has named a different inventive entity than a patent does not necessarily make that patent prior art.” Applied Materials Inc. v. Gemini Research Corp., 835 F.2d 279, 15 USPQ2d 1816 (Fed. Cir. 1988). The issue turns on what the evidence of record shows as to who invented the subject matter. In re Whittle, 454 F.2d 1193, 1195, 172 USPQ 535, 537 (CCPA 1972). In fact, even if an inventor's or at least one joint inventor's work was publicly disclosed prior to the patent application, the inventor's or at least one joint inventor's own work may not be used against the application subject to pre-AIA 35 U.S.C. 102 unless there is a time bar under pre-AIA 35 U.S.C. 102(b). In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (citing In re Katz, 687 F.2d 450, 215 USPQ 14 (CCPA 1982)). However, an affidavit or declaration under 37 CFR 1.132 that is only a naked assertion of inventorship and that fails to provide any context, explanation or evidence to support that assertion is insufficient to show that the relied-upon subject matter was the inventor’s own work. See EmeraChem Holdings, LLC v. Volkswagen Grp. of Am., Inc., 859 F.3d 1341, 123 USPQ2d 1146 (Fed. Cir. 2017) (finding that a declaration submitted by inventor Campbell insufficient to establish that he and Guth (now deceased) were inventors of the subject matter disclosed in a patent naming Campbell, Guth, Danziger, and Padron because “[n]othing in the declaration itself, or in addition to the declaration, provides any context, explanation, or evidence to lend credence to the inventor's bare assertion” and more than twenty years had passed since the alleged events occurred. Id. at 1345; 123 USPQ2d at 1149). Therefore, when the unclaimed subject matter of a reference is an inventor's or at least one joint inventor's own invention, a prima facie case based on the patent, U.S. patent application publication, or international application publication, may be overcome by showing that the disclosure is a description of the inventor's or at least one joint inventor's own previous work. Such a showing can be made by proving that the inventor(s) of the U.S. patent, U.S. patent application publication, or the international application publication, was associated with applicant (e.g., same assignee) and learned of the inventor's or at least one joint inventor's invention from the inventor or at least one joint inventor directly or indirectly. In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969).

Jump to MPEP Source · 37 CFR 1.132AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
StatutoryPermittedAlways
[mpep-2136-05-b-9c5ff9df48486bdfbc02d5b8]
Requirement for Showing Reference Is Inventor's Own Work
Note:
Must show that the reference invention is not prior art if it describes an inventor's or joint inventor's own work.

A rejection based on pre-AIA 35 U.S.C. 102(e) can be overcome by filing an affidavit or declaration under 37 CFR 1.132 showing that the reference invention is not by “another.” “The fact that an application has named a different inventive entity than a patent does not necessarily make that patent prior art.” Applied Materials Inc. v. Gemini Research Corp., 835 F.2d 279, 15 USPQ2d 1816 (Fed. Cir. 1988). The issue turns on what the evidence of record shows as to who invented the subject matter. In re Whittle, 454 F.2d 1193, 1195, 172 USPQ 535, 537 (CCPA 1972). In fact, even if an inventor's or at least one joint inventor's work was publicly disclosed prior to the patent application, the inventor's or at least one joint inventor's own work may not be used against the application subject to pre-AIA 35 U.S.C. 102 unless there is a time bar under pre-AIA 35 U.S.C. 102(b). In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (citing In re Katz, 687 F.2d 450, 215 USPQ 14 (CCPA 1982)). However, an affidavit or declaration under 37 CFR 1.132 that is only a naked assertion of inventorship and that fails to provide any context, explanation or evidence to support that assertion is insufficient to show that the relied-upon subject matter was the inventor’s own work. See EmeraChem Holdings, LLC v. Volkswagen Grp. of Am., Inc., 859 F.3d 1341, 123 USPQ2d 1146 (Fed. Cir. 2017) (finding that a declaration submitted by inventor Campbell insufficient to establish that he and Guth (now deceased) were inventors of the subject matter disclosed in a patent naming Campbell, Guth, Danziger, and Padron because “[n]othing in the declaration itself, or in addition to the declaration, provides any context, explanation, or evidence to lend credence to the inventor's bare assertion” and more than twenty years had passed since the alleged events occurred. Id. at 1345; 123 USPQ2d at 1149). Therefore, when the unclaimed subject matter of a reference is an inventor's or at least one joint inventor's own invention, a prima facie case based on the patent, U.S. patent application publication, or international application publication, may be overcome by showing that the disclosure is a description of the inventor's or at least one joint inventor's own previous work. Such a showing can be made by proving that the inventor(s) of the U.S. patent, U.S. patent application publication, or the international application publication, was associated with applicant (e.g., same assignee) and learned of the inventor's or at least one joint inventor's invention from the inventor or at least one joint inventor directly or indirectly. In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969).
123 USPQ2d at 1149) Therefore, when the unclaimed subject matter of a reference is an inventor's or at least one joint inventor's own invention, a prima facie case based on the patent, U.S. patent application publication, or international application publication, may be overcome by showing that the disclosure is a description of the inventor's or at least one joint inventor's own previous work.

Jump to MPEP Source · 37 CFR 1.132AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)PCT Description Requirements
StatutoryPermittedAlways
[mpep-2136-05-b-ed264684be7e9187dade330d]
Requirement for Proving Inventor's Own Work
Note:
Prove the reference invention is an inventor’s own work by showing association with the applicant and learning of the invention directly or indirectly.

A rejection based on pre-AIA 35 U.S.C. 102(e) can be overcome by filing an affidavit or declaration under 37 CFR 1.132 showing that the reference invention is not by “another.” “The fact that an application has named a different inventive entity than a patent does not necessarily make that patent prior art.” Applied Materials Inc. v. Gemini Research Corp., 835 F.2d 279, 15 USPQ2d 1816 (Fed. Cir. 1988). The issue turns on what the evidence of record shows as to who invented the subject matter. In re Whittle, 454 F.2d 1193, 1195, 172 USPQ 535, 537 (CCPA 1972). In fact, even if an inventor's or at least one joint inventor's work was publicly disclosed prior to the patent application, the inventor's or at least one joint inventor's own work may not be used against the application subject to pre-AIA 35 U.S.C. 102 unless there is a time bar under pre-AIA 35 U.S.C. 102(b). In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (citing In re Katz, 687 F.2d 450, 215 USPQ 14 (CCPA 1982)). However, an affidavit or declaration under 37 CFR 1.132 that is only a naked assertion of inventorship and that fails to provide any context, explanation or evidence to support that assertion is insufficient to show that the relied-upon subject matter was the inventor’s own work. See EmeraChem Holdings, LLC v. Volkswagen Grp. of Am., Inc., 859 F.3d 1341, 123 USPQ2d 1146 (Fed. Cir. 2017) (finding that a declaration submitted by inventor Campbell insufficient to establish that he and Guth (now deceased) were inventors of the subject matter disclosed in a patent naming Campbell, Guth, Danziger, and Padron because “[n]othing in the declaration itself, or in addition to the declaration, provides any context, explanation, or evidence to lend credence to the inventor's bare assertion” and more than twenty years had passed since the alleged events occurred. Id. at 1345; 123 USPQ2d at 1149). Therefore, when the unclaimed subject matter of a reference is an inventor's or at least one joint inventor's own invention, a prima facie case based on the patent, U.S. patent application publication, or international application publication, may be overcome by showing that the disclosure is a description of the inventor's or at least one joint inventor's own previous work. Such a showing can be made by proving that the inventor(s) of the U.S. patent, U.S. patent application publication, or the international application publication, was associated with applicant (e.g., same assignee) and learned of the inventor's or at least one joint inventor's invention from the inventor or at least one joint inventor directly or indirectly. In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969).

Jump to MPEP Source · 37 CFR 1.132AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)Publication Language
StatutoryInformativeAlways
[mpep-2136-05-b-b00b95eba8a811188f7bf42f]
Declarations Must Establish Inventorship of Species, Not Generic Compound
Note:
Applicants must submit declarations that clearly establish inventorship for specific species within a generic compound, not just the generic compound itself.

See also In re Carreira, 532 F.2d 1356, 189 USPQ 461 (CCPA 1976) (The examiner rejected claims to a joint application to Carreira, Kyrakakis, Solodar, and Labana under pre-AIA 35 U.S.C. 102(e) and 103 in view of a U.S. patent issued to Tulagin and Carreira or a patent issued to Clark. The applicants submitted declarations under 37 CFR 1.132 by Tulagin and Clark in which each declarant stated he was “not the inventor of the use of compounds having a hydroxyl group in a position ortho to an azo linkage.” The court held that these statements were vague and inconclusive because the declarants did not disclose the use of this generic compound but rather species of this generic compound in their patents and it was the species which met the claims. The declaration that each did not invent the use of the generic compound does not establish that Tulagin and Clark did not invent the use of the species.)

Jump to MPEP Source · 37 CFR 1.132AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
StatutoryInformativeAlways
[mpep-2136-05-b-efd92a9ef9554a32e2950e57]
Declarants Must State Lack of Invention for Specific Species
Note:
Declarants must state they did not invent the specific species, not just a generic compound.

See also In re Carreira, 532 F.2d 1356, 189 USPQ 461 (CCPA 1976) (The examiner rejected claims to a joint application to Carreira, Kyrakakis, Solodar, and Labana under pre-AIA 35 U.S.C. 102(e) and 103 in view of a U.S. patent issued to Tulagin and Carreira or a patent issued to Clark. The applicants submitted declarations under 37 CFR 1.132 by Tulagin and Clark in which each declarant stated he was “not the inventor of the use of compounds having a hydroxyl group in a position ortho to an azo linkage.” The court held that these statements were vague and inconclusive because the declarants did not disclose the use of this generic compound but rather species of this generic compound in their patents and it was the species which met the claims. The declaration that each did not invent the use of the generic compound does not establish that Tulagin and Clark did not invent the use of the species.)

Jump to MPEP Source · 37 CFR 1.132AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
StatutoryInformativeAlways
[mpep-2136-05-b-24bb9d0e49a333747261bc4e]
Declarants Must Specify Species, Not Generics
Note:
Declarants must specify the exact species of a generic compound used in patents rather than just stating they did not invent the use of the generic compound.

See also In re Carreira, 532 F.2d 1356, 189 USPQ 461 (CCPA 1976) (The examiner rejected claims to a joint application to Carreira, Kyrakakis, Solodar, and Labana under pre-AIA 35 U.S.C. 102(e) and 103 in view of a U.S. patent issued to Tulagin and Carreira or a patent issued to Clark. The applicants submitted declarations under 37 CFR 1.132 by Tulagin and Clark in which each declarant stated he was “not the inventor of the use of compounds having a hydroxyl group in a position ortho to an azo linkage.” The court held that these statements were vague and inconclusive because the declarants did not disclose the use of this generic compound but rather species of this generic compound in their patents and it was the species which met the claims. The declaration that each did not invent the use of the generic compound does not establish that Tulagin and Clark did not invent the use of the species.)

Jump to MPEP Source · 37 CFR 1.132AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
StatutoryRecommendedAlways
[mpep-2136-05-b-b8e96427fbcef8e0466d780c]
Disclaimers by Joint Inventors Not Required
Note:
Examiners should consider disclaimers submitted by all joint inventors but are not required to do so if other joint inventors do not submit them.

When the reference reflects an inventor's or at least one joint inventor's own work, evidence of diligence or reduction to practice does not need to be provided in order to establish that the inventor or at least one joint inventor invented the subject matter disclosed in the reference. A showing that the reference disclosure arose from an inventor's or at least one joint inventor's work coupled with a showing of conception by the inventor or at least one joint inventor before the filing date of the reference will overcome the pre-AIA 35 U.S.C. 102(e) rejection. The showing can be made by submission of an affidavit under 37 CFR 1.132 by the inventor or at least one joint inventor who invented the subject matter. The other joint inventors, if applicable, need not submit an affidavit disclaiming inventorship, but, if submitted, a disclaimer by all other joint inventors should be considered by the examiner. In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (Declaration submitted by DeBaun stated that he was the inventor of subject matter disclosed in the U.S. patent reference of DeBaun and Noll. Exhibits were attached to the declaration showing conception and included drawings DeBaun had prepared and given to counsel for purposes of preparing the application which issued as the reference patent. The court held that, even though the evidence was not sufficient to antedate the prior art patent under 37 CFR 1.131, diligence and/or reduction to practice was not required to show DeBaun invented the subject matter. Declarant’s exhibits and statement that he conceived the invention was enough to show that the subject matter in the U.S. patent reference was declarant’s own invention.).

Jump to MPEP Source · 37 CFR 1.132AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Antedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)
StatutoryInformativeAlways
[mpep-2136-05-b-4e4a7987c10e5ba7b2149ba4]
Declarant's Work Requirement for Prior Art
Note:
A declarant must show that the subject matter in a U.S. patent reference was their own invention through exhibits and statement of conception before the filing date.

When the reference reflects an inventor's or at least one joint inventor's own work, evidence of diligence or reduction to practice does not need to be provided in order to establish that the inventor or at least one joint inventor invented the subject matter disclosed in the reference. A showing that the reference disclosure arose from an inventor's or at least one joint inventor's work coupled with a showing of conception by the inventor or at least one joint inventor before the filing date of the reference will overcome the pre-AIA 35 U.S.C. 102(e) rejection. The showing can be made by submission of an affidavit under 37 CFR 1.132 by the inventor or at least one joint inventor who invented the subject matter. The other joint inventors, if applicable, need not submit an affidavit disclaiming inventorship, but, if submitted, a disclaimer by all other joint inventors should be considered by the examiner. In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (Declaration submitted by DeBaun stated that he was the inventor of subject matter disclosed in the U.S. patent reference of DeBaun and Noll. Exhibits were attached to the declaration showing conception and included drawings DeBaun had prepared and given to counsel for purposes of preparing the application which issued as the reference patent. The court held that, even though the evidence was not sufficient to antedate the prior art patent under 37 CFR 1.131, diligence and/or reduction to practice was not required to show DeBaun invented the subject matter. Declarant’s exhibits and statement that he conceived the invention was enough to show that the subject matter in the U.S. patent reference was declarant’s own invention.).

Jump to MPEP Source · 37 CFR 1.132AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Pre-AIA 102(e) – Earlier US Applications (MPEP 2136)Diligence Requirement
Topic

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

7 rules
StatutoryInformativeAlways
[mpep-2136-05-b-3fa881b0f6923d146041d5e5]
Separate Patents Can Reject Joint Application
Note:
Separate U.S. patents to different inventors can reject a joint application under pre-AIA 35 U.S.C. 102(e) / 103 if the inventions are distinct.

In In re Land, separate U.S. patents to Rogers and to Land were used to reject a joint application to Rogers and Land under pre-AIA 35 U.S.C. 102(e) / 103. The inventors worked for the same company (Polaroid) and in the same laboratory. All the patents flowed from the same research. In addition, the patent applications were prepared by the same attorneys, were interrelated and contained cross-references to each other. The court affirmed the rejection because (1) the inventive entities of the patents (one to Rogers and one to Land) were different from the inventive entity of the joint application (Rogers and Land) and (2) Land and Rogers brought their knowledge of their individual work with them when they made the joint invention. There was no indication that the portions of the references relied on disclosed anything they did jointly. Nor was there a showing that what they did jointly was done before the filing of the reference patent applications.

Jump to MPEP SourcePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)
StatutoryInformativeAlways
[mpep-2136-05-b-070155a7823a37c146ed6c88]
Requirement for Same Company Inventors
Note:
The rule requires that inventors working in the same company and laboratory must be considered when evaluating prior art under AIA 35 U.S.C. 102.

In In re Land, separate U.S. patents to Rogers and to Land were used to reject a joint application to Rogers and Land under pre-AIA 35 U.S.C. 102(e) / 103. The inventors worked for the same company (Polaroid) and in the same laboratory. All the patents flowed from the same research. In addition, the patent applications were prepared by the same attorneys, were interrelated and contained cross-references to each other. The court affirmed the rejection because (1) the inventive entities of the patents (one to Rogers and one to Land) were different from the inventive entity of the joint application (Rogers and Land) and (2) Land and Rogers brought their knowledge of their individual work with them when they made the joint invention. There was no indication that the portions of the references relied on disclosed anything they did jointly. Nor was there a showing that what they did jointly was done before the filing of the reference patent applications.

Jump to MPEP SourcePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)
StatutoryInformativeAlways
[mpep-2136-05-b-196f6e19790266bf7c7aa169]
All Patents Flow from Same Research
Note:
This rule requires that all patents must stem from the same research, as demonstrated by inventors working in the same laboratory and having interrelated applications.

In In re Land, separate U.S. patents to Rogers and to Land were used to reject a joint application to Rogers and Land under pre-AIA 35 U.S.C. 102(e) / 103. The inventors worked for the same company (Polaroid) and in the same laboratory. All the patents flowed from the same research. In addition, the patent applications were prepared by the same attorneys, were interrelated and contained cross-references to each other. The court affirmed the rejection because (1) the inventive entities of the patents (one to Rogers and one to Land) were different from the inventive entity of the joint application (Rogers and Land) and (2) Land and Rogers brought their knowledge of their individual work with them when they made the joint invention. There was no indication that the portions of the references relied on disclosed anything they did jointly. Nor was there a showing that what they did jointly was done before the filing of the reference patent applications.

Jump to MPEP SourcePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)
StatutoryInformativeAlways
[mpep-2136-05-b-d2ca3bcc6877a31fc57934e9]
Interrelated Patent Applications Prepared by Same Attorneys
Note:
The rule requires that patent applications prepared by the same attorneys and containing cross-references to each other must be considered interrelated.

In In re Land, separate U.S. patents to Rogers and to Land were used to reject a joint application to Rogers and Land under pre-AIA 35 U.S.C. 102(e) / 103. The inventors worked for the same company (Polaroid) and in the same laboratory. All the patents flowed from the same research. In addition, the patent applications were prepared by the same attorneys, were interrelated and contained cross-references to each other. The court affirmed the rejection because (1) the inventive entities of the patents (one to Rogers and one to Land) were different from the inventive entity of the joint application (Rogers and Land) and (2) Land and Rogers brought their knowledge of their individual work with them when they made the joint invention. There was no indication that the portions of the references relied on disclosed anything they did jointly. Nor was there a showing that what they did jointly was done before the filing of the reference patent applications.

Jump to MPEP SourcePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)
StatutoryInformativeAlways
[mpep-2136-05-b-4109c0c130fff5bb335cd899]
Requirement for Inventors Bringing Individual Knowledge to Joint Invention
Note:
The rule requires that inventors must bring their individual knowledge from separate work into a joint invention, affecting the rejection of patents under AIA 35 U.S.C. 102.

In In re Land, separate U.S. patents to Rogers and to Land were used to reject a joint application to Rogers and Land under pre-AIA 35 U.S.C. 102(e) / 103. The inventors worked for the same company (Polaroid) and in the same laboratory. All the patents flowed from the same research. In addition, the patent applications were prepared by the same attorneys, were interrelated and contained cross-references to each other. The court affirmed the rejection because (1) the inventive entities of the patents (one to Rogers and one to Land) were different from the inventive entity of the joint application (Rogers and Land) and (2) Land and Rogers brought their knowledge of their individual work with them when they made the joint invention. There was no indication that the portions of the references relied on disclosed anything they did jointly. Nor was there a showing that what they did jointly was done before the filing of the reference patent applications.

Jump to MPEP SourcePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)
StatutoryInformativeAlways
[mpep-2136-05-b-ed0da6f18e24ceaf574c85f8]
References Do Not Disclose Joint Work
Note:
The rule states that portions of the references relied on do not disclose any joint work between inventors.

In In re Land, separate U.S. patents to Rogers and to Land were used to reject a joint application to Rogers and Land under pre-AIA 35 U.S.C. 102(e) / 103. The inventors worked for the same company (Polaroid) and in the same laboratory. All the patents flowed from the same research. In addition, the patent applications were prepared by the same attorneys, were interrelated and contained cross-references to each other. The court affirmed the rejection because (1) the inventive entities of the patents (one to Rogers and one to Land) were different from the inventive entity of the joint application (Rogers and Land) and (2) Land and Rogers brought their knowledge of their individual work with them when they made the joint invention. There was no indication that the portions of the references relied on disclosed anything they did jointly. Nor was there a showing that what they did jointly was done before the filing of the reference patent applications.

Jump to MPEP SourcePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)
StatutoryInformativeAlways
[mpep-2136-05-b-2471c5705ad02fe48c54031a]
Requirement for Showing Joint Work Before Reference Filing
Note:
The rule requires demonstrating that joint work was performed before the filing of reference patent applications.

In In re Land, separate U.S. patents to Rogers and to Land were used to reject a joint application to Rogers and Land under pre-AIA 35 U.S.C. 102(e) / 103. The inventors worked for the same company (Polaroid) and in the same laboratory. All the patents flowed from the same research. In addition, the patent applications were prepared by the same attorneys, were interrelated and contained cross-references to each other. The court affirmed the rejection because (1) the inventive entities of the patents (one to Rogers and one to Land) were different from the inventive entity of the joint application (Rogers and Land) and (2) Land and Rogers brought their knowledge of their individual work with them when they made the joint invention. There was no indication that the portions of the references relied on disclosed anything they did jointly. Nor was there a showing that what they did jointly was done before the filing of the reference patent applications.

Jump to MPEP SourcePrior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)
Topic

Diligence Requirement

3 rules
StatutoryInformativeAlways
[mpep-2136-05-b-e51bea4ee72a942c8bc2b07b]
Requirement for Showing Reference Reflects Inventor's Own Work
Note:
The rule requires showing that a reference reflects an inventor's or joint inventors' own work to establish invention without proving diligence or reduction to practice.

When the reference reflects an inventor's or at least one joint inventor's own work, evidence of diligence or reduction to practice does not need to be provided in order to establish that the inventor or at least one joint inventor invented the subject matter disclosed in the reference. A showing that the reference disclosure arose from an inventor's or at least one joint inventor's work coupled with a showing of conception by the inventor or at least one joint inventor before the filing date of the reference will overcome the pre-AIA 35 U.S.C. 102(e) rejection. The showing can be made by submission of an affidavit under 37 CFR 1.132 by the inventor or at least one joint inventor who invented the subject matter. The other joint inventors, if applicable, need not submit an affidavit disclaiming inventorship, but, if submitted, a disclaimer by all other joint inventors should be considered by the examiner. In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (Declaration submitted by DeBaun stated that he was the inventor of subject matter disclosed in the U.S. patent reference of DeBaun and Noll. Exhibits were attached to the declaration showing conception and included drawings DeBaun had prepared and given to counsel for purposes of preparing the application which issued as the reference patent. The court held that, even though the evidence was not sufficient to antedate the prior art patent under 37 CFR 1.131, diligence and/or reduction to practice was not required to show DeBaun invented the subject matter. Declarant’s exhibits and statement that he conceived the invention was enough to show that the subject matter in the U.S. patent reference was declarant’s own invention.).

Jump to MPEP Source · 37 CFR 1.132Diligence RequirementConception and Reduction to Practice
StatutoryPermittedAlways
[mpep-2136-05-b-aacda8d323639b6fc12fbc16]
Affidavit by Inventor to Show Reference Is Own Work
Note:
An inventor must submit an affidavit under 37 CFR 1.132 to show that a reference discloses their own work, meeting pre-AIA 102(e) requirements without needing evidence of diligence or reduction to practice.

When the reference reflects an inventor's or at least one joint inventor's own work, evidence of diligence or reduction to practice does not need to be provided in order to establish that the inventor or at least one joint inventor invented the subject matter disclosed in the reference. A showing that the reference disclosure arose from an inventor's or at least one joint inventor's work coupled with a showing of conception by the inventor or at least one joint inventor before the filing date of the reference will overcome the pre-AIA 35 U.S.C. 102(e) rejection. The showing can be made by submission of an affidavit under 37 CFR 1.132 by the inventor or at least one joint inventor who invented the subject matter. The other joint inventors, if applicable, need not submit an affidavit disclaiming inventorship, but, if submitted, a disclaimer by all other joint inventors should be considered by the examiner. In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (Declaration submitted by DeBaun stated that he was the inventor of subject matter disclosed in the U.S. patent reference of DeBaun and Noll. Exhibits were attached to the declaration showing conception and included drawings DeBaun had prepared and given to counsel for purposes of preparing the application which issued as the reference patent. The court held that, even though the evidence was not sufficient to antedate the prior art patent under 37 CFR 1.131, diligence and/or reduction to practice was not required to show DeBaun invented the subject matter. Declarant’s exhibits and statement that he conceived the invention was enough to show that the subject matter in the U.S. patent reference was declarant’s own invention.).

Jump to MPEP Source · 37 CFR 1.132Diligence RequirementConception and Reduction to Practice
StatutoryRequiredAlways
[mpep-2136-05-b-2a5711bdc8ea7a633aec6ec3]
Diligence Not Required for Inventor’s Own Work
Note:
The court held that evidence of conception by an inventor is sufficient to establish ownership of subject matter disclosed in a prior art patent, even if the evidence does not antedate the patent.

When the reference reflects an inventor's or at least one joint inventor's own work, evidence of diligence or reduction to practice does not need to be provided in order to establish that the inventor or at least one joint inventor invented the subject matter disclosed in the reference. A showing that the reference disclosure arose from an inventor's or at least one joint inventor's work coupled with a showing of conception by the inventor or at least one joint inventor before the filing date of the reference will overcome the pre-AIA 35 U.S.C. 102(e) rejection. The showing can be made by submission of an affidavit under 37 CFR 1.132 by the inventor or at least one joint inventor who invented the subject matter. The other joint inventors, if applicable, need not submit an affidavit disclaiming inventorship, but, if submitted, a disclaimer by all other joint inventors should be considered by the examiner. In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (Declaration submitted by DeBaun stated that he was the inventor of subject matter disclosed in the U.S. patent reference of DeBaun and Noll. Exhibits were attached to the declaration showing conception and included drawings DeBaun had prepared and given to counsel for purposes of preparing the application which issued as the reference patent. The court held that, even though the evidence was not sufficient to antedate the prior art patent under 37 CFR 1.131, diligence and/or reduction to practice was not required to show DeBaun invented the subject matter. Declarant’s exhibits and statement that he conceived the invention was enough to show that the subject matter in the U.S. patent reference was declarant’s own invention.).

Jump to MPEP Source · 37 CFR 1.132Diligence RequirementConception and Reduction to Practice
Topic

Conception and Reduction to Practice

2 rules
StatutoryInformativeAlways
[mpep-2136-05-b-97883dc8e81965267154c8d3]
Showing Reference Is Inventor's Own Work
Note:
Demonstrate that the reference disclosure arose from an inventor's work and was conceived before the filing date to overcome a pre-AIA 102(e) rejection.

When the reference reflects an inventor's or at least one joint inventor's own work, evidence of diligence or reduction to practice does not need to be provided in order to establish that the inventor or at least one joint inventor invented the subject matter disclosed in the reference. A showing that the reference disclosure arose from an inventor's or at least one joint inventor's work coupled with a showing of conception by the inventor or at least one joint inventor before the filing date of the reference will overcome the pre-AIA 35 U.S.C. 102(e) rejection. The showing can be made by submission of an affidavit under 37 CFR 1.132 by the inventor or at least one joint inventor who invented the subject matter. The other joint inventors, if applicable, need not submit an affidavit disclaiming inventorship, but, if submitted, a disclaimer by all other joint inventors should be considered by the examiner. In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (Declaration submitted by DeBaun stated that he was the inventor of subject matter disclosed in the U.S. patent reference of DeBaun and Noll. Exhibits were attached to the declaration showing conception and included drawings DeBaun had prepared and given to counsel for purposes of preparing the application which issued as the reference patent. The court held that, even though the evidence was not sufficient to antedate the prior art patent under 37 CFR 1.131, diligence and/or reduction to practice was not required to show DeBaun invented the subject matter. Declarant’s exhibits and statement that he conceived the invention was enough to show that the subject matter in the U.S. patent reference was declarant’s own invention.).

Jump to MPEP Source · 37 CFR 1.132Conception and Reduction to PracticePre-AIA 102(g) – Prior Invention (MPEP 2138)
StatutoryInformativeAlways
[mpep-2136-05-b-d971e38bcb434bf430082a51]
Declaration Showing Inventor's Work Sufficient for Conception
Note:
A declaration showing conception and the inventor’s work is sufficient to establish invention, even without proof of diligence or reduction to practice.

When the reference reflects an inventor's or at least one joint inventor's own work, evidence of diligence or reduction to practice does not need to be provided in order to establish that the inventor or at least one joint inventor invented the subject matter disclosed in the reference. A showing that the reference disclosure arose from an inventor's or at least one joint inventor's work coupled with a showing of conception by the inventor or at least one joint inventor before the filing date of the reference will overcome the pre-AIA 35 U.S.C. 102(e) rejection. The showing can be made by submission of an affidavit under 37 CFR 1.132 by the inventor or at least one joint inventor who invented the subject matter. The other joint inventors, if applicable, need not submit an affidavit disclaiming inventorship, but, if submitted, a disclaimer by all other joint inventors should be considered by the examiner. In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (Declaration submitted by DeBaun stated that he was the inventor of subject matter disclosed in the U.S. patent reference of DeBaun and Noll. Exhibits were attached to the declaration showing conception and included drawings DeBaun had prepared and given to counsel for purposes of preparing the application which issued as the reference patent. The court held that, even though the evidence was not sufficient to antedate the prior art patent under 37 CFR 1.131, diligence and/or reduction to practice was not required to show DeBaun invented the subject matter. Declarant’s exhibits and statement that he conceived the invention was enough to show that the subject matter in the U.S. patent reference was declarant’s own invention.).

Jump to MPEP Source · 37 CFR 1.132Conception and Reduction to PracticeAntedating Reference – Pre-AIA (MPEP 2136.05)Pre-AIA 102(g) – Prior Invention (MPEP 2138)
Topic

Statutory Authority for Examination

1 rules
StatutoryInformativeAlways
[mpep-2136-05-b-29b146033a747ad2a7014551]
First Inventor to File Provisions Not Applicable
Note:
This rule does not apply to applications subject to examination under the first inventor to file provisions of the AIA. Examiners should refer to MPEP sections for FITF provisions and pre-AIA 35 U.S.C. 102(e) rejections.

[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. Information pertaining to overcoming pre-AIA 35 U.S.C. 102(e) rejections has been moved to MPEP § 2136.05(a) for affidavits or declarations under 37 CFR 1.131.]

Jump to MPEP Source · 37 CFR 1.131Statutory Authority for ExaminationAIA vs Pre-AIA PracticeExamination Procedures
Topic

Effect of International Publication

1 rules
StatutoryInformativeAlways
[mpep-2136-05-b-3b46dae01555237801538d90]
Different Inventive Entity Does Not Make Patent Prior Art
Note:
A patent by a different named entity does not automatically make it prior art against an application if the evidence shows otherwise.

A rejection based on pre-AIA 35 U.S.C. 102(e) can be overcome by filing an affidavit or declaration under 37 CFR 1.132 showing that the reference invention is not by “another.” “The fact that an application has named a different inventive entity than a patent does not necessarily make that patent prior art.” Applied Materials Inc. v. Gemini Research Corp., 835 F.2d 279, 15 USPQ2d 1816 (Fed. Cir. 1988). The issue turns on what the evidence of record shows as to who invented the subject matter. In re Whittle, 454 F.2d 1193, 1195, 172 USPQ 535, 537 (CCPA 1972). In fact, even if an inventor's or at least one joint inventor's work was publicly disclosed prior to the patent application, the inventor's or at least one joint inventor's own work may not be used against the application subject to pre-AIA 35 U.S.C. 102 unless there is a time bar under pre-AIA 35 U.S.C. 102(b). In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982) (citing In re Katz, 687 F.2d 450, 215 USPQ 14 (CCPA 1982)). However, an affidavit or declaration under 37 CFR 1.132 that is only a naked assertion of inventorship and that fails to provide any context, explanation or evidence to support that assertion is insufficient to show that the relied-upon subject matter was the inventor’s own work. See EmeraChem Holdings, LLC v. Volkswagen Grp. of Am., Inc., 859 F.3d 1341, 123 USPQ2d 1146 (Fed. Cir. 2017) (finding that a declaration submitted by inventor Campbell insufficient to establish that he and Guth (now deceased) were inventors of the subject matter disclosed in a patent naming Campbell, Guth, Danziger, and Padron because “[n]othing in the declaration itself, or in addition to the declaration, provides any context, explanation, or evidence to lend credence to the inventor's bare assertion” and more than twenty years had passed since the alleged events occurred. Id. at 1345; 123 USPQ2d at 1149). Therefore, when the unclaimed subject matter of a reference is an inventor's or at least one joint inventor's own invention, a prima facie case based on the patent, U.S. patent application publication, or international application publication, may be overcome by showing that the disclosure is a description of the inventor's or at least one joint inventor's own previous work. Such a showing can be made by proving that the inventor(s) of the U.S. patent, U.S. patent application publication, or the international application publication, was associated with applicant (e.g., same assignee) and learned of the inventor's or at least one joint inventor's invention from the inventor or at least one joint inventor directly or indirectly. In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969).

Jump to MPEP Source · 37 CFR 1.132Effect of International PublicationAIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)Antedating Reference – Pre-AIA (MPEP 2136.05)
Topic

Publication Language

1 rules
StatutoryRequiredAlways
[mpep-2136-05-b-7305c24d90a0fd1f93e0f385]
Joint Invention Must Be Described First
Note:
The joint invention must be described in a sole inventor's patent, application publication, or international publication before the joint application is filed.

In the situation where one application is first filed naming sole inventor X and then a later application is filed naming joint inventors X & Y, it must be proven that the joint invention was made first, was thereafter described in the sole inventor's patent, or was thereafter described in the sole inventor's U.S. patent application publication or international application publication, and then the joint application was filed. In re Land, 368 F.2d 866, 151 USPQ 621 (CCPA 1966).

Jump to MPEP SourcePublication LanguageInternational PublicationPatent Cooperation Treaty
Topic

Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)

1 rules
StatutoryInformativeAlways
[mpep-2136-05-b-9691833ef149e68b74da62be]
Pre-AIA 35 U.S.C. 102(e) Rejection Using Dewey’s Application
Note:
The examiner uses Dewey's application to reject all claims in Mathews' application under pre-AIA 35 U.S.C. 102(e).

See also In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969) (On September 15, 1961, Dewey filed an application disclosing and claiming a time delay protective device for an electric circuit. In disclosing the invention, Dewey completely described, but did not claim, a “gating means 19” invented by Mathews which was usable in the protective device. Dewey and Mathews were coworkers at General Electric Company, the assignee. Mathews filed his application on March 7, 1963, before the Dewey patent issued but almost 18 months after its filing. The Mathews application disclosed that “one illustration of a circuit embodying the present invention is shown in copending patent application S.N. 138,476-Dewey.” The examiner used Dewey to reject all the Mathews claims under pre-AIA 35 U.S.C. 102(e). In response, Mathews submitted an affidavit by Dewey under 37 CFR 1.132. In the affidavit, Dewey stated that he did not invent the gating means 19 but had learned of the gating means through Mathews and that GE attorneys had advised that the gating means be disclosed in Dewey’s application to comply with 35 U.S.C. 112, first paragraph. The examiner argued that the only way to overcome a pre-AIA 35 U.S.C. 102(e) rejection was by submitting an affidavit or declaration under 37 CFR 1.131 to antedate the filing date of the reference. The court reversed the rejection, holding that the totality of the evidence on record showed that Dewey derived his knowledge from Mathews who is “the original, first and sole inventor.”).

Jump to MPEP Source · 37 CFR 1.132Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)AIA vs Pre-AIA 102 (MPEP 2151)AIA vs Pre-AIA Practice
Topic

Pre-AIA 102(f) – Derivation (MPEP 2137)

1 rules
StatutoryInformativeAlways
[mpep-2136-05-b-02af8869769ad0b2f1f5bfa5]
Affidavit Showing Inventor Derived Knowledge From Another
Note:
The court held that an affidavit must show the inventor derived their knowledge from another original inventor to overcome a pre-AIA 102(e) rejection.

See also In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969) (On September 15, 1961, Dewey filed an application disclosing and claiming a time delay protective device for an electric circuit. In disclosing the invention, Dewey completely described, but did not claim, a “gating means 19” invented by Mathews which was usable in the protective device. Dewey and Mathews were coworkers at General Electric Company, the assignee. Mathews filed his application on March 7, 1963, before the Dewey patent issued but almost 18 months after its filing. The Mathews application disclosed that “one illustration of a circuit embodying the present invention is shown in copending patent application S.N. 138,476-Dewey.” The examiner used Dewey to reject all the Mathews claims under pre-AIA 35 U.S.C. 102(e). In response, Mathews submitted an affidavit by Dewey under 37 CFR 1.132. In the affidavit, Dewey stated that he did not invent the gating means 19 but had learned of the gating means through Mathews and that GE attorneys had advised that the gating means be disclosed in Dewey’s application to comply with 35 U.S.C. 112, first paragraph. The examiner argued that the only way to overcome a pre-AIA 35 U.S.C. 102(e) rejection was by submitting an affidavit or declaration under 37 CFR 1.131 to antedate the filing date of the reference. The court reversed the rejection, holding that the totality of the evidence on record showed that Dewey derived his knowledge from Mathews who is “the original, first and sole inventor.”).

Jump to MPEP Source · 37 CFR 1.132Pre-AIA 102(f) – Derivation (MPEP 2137)Antedating Reference – Pre-AIA (MPEP 2136.05)

Citations

Primary topicCitation
Antedating Reference – Pre-AIA (MPEP 2136.05)
Statutory Authority for Examination
35 U.S.C. § 100
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Effect of International Publication
35 U.S.C. § 102
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Effect of International Publication
35 U.S.C. § 102(b)
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Conception and Reduction to Practice
Diligence Requirement
Effect of International Publication
Pre-AIA 102(f) – Derivation (MPEP 2137)
Prior Art Under AIA 35 U.S.C. 102 (MPEP 2150-2159)
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
Statutory Authority for Examination
35 U.S.C. § 102(e)
Antedating Reference – Pre-AIA (MPEP 2136.05)35 U.S.C. § 103(c)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Pre-AIA 102(f) – Derivation (MPEP 2137)
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
35 U.S.C. § 112
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Conception and Reduction to Practice
Diligence Requirement
Pre-AIA 102(f) – Derivation (MPEP 2137)
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
Statutory Authority for Examination
37 CFR § 1.131
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Conception and Reduction to Practice
Diligence Requirement
Effect of International Publication
Pre-AIA 102(f) – Derivation (MPEP 2137)
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
37 CFR § 1.132
Antedating Reference – Pre-AIA (MPEP 2136.05)37 CFR § 715.01(c)
Antedating Reference – Pre-AIA (MPEP 2136.05)37 CFR § 716.10
Antedating Reference – Pre-AIA (MPEP 2136.05)
Statutory Authority for Examination
MPEP § 2136.05(a)
Antedating Reference – Pre-AIA (MPEP 2136.05)MPEP § 2146
Antedating Reference – Pre-AIA (MPEP 2136.05)
Statutory Authority for Examination
MPEP § 2150
Antedating Reference – Pre-AIA (MPEP 2136.05)
Statutory Authority for Examination
MPEP § 2159
Antedating Reference – Pre-AIA (MPEP 2136.05)MPEP § 715.01(a)
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Effect of International Publication
Applied Materials Inc. v. Gemini Research Corp., 835 F.2d 279, 15 USPQ2d 1816 (Fed. Cir. 1988)
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
In re Carreira, 532 F.2d 1356, 189 USPQ 461 (CCPA 1976)
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Conception and Reduction to Practice
Diligence Requirement
Effect of International Publication
In re DeBaun, 687 F.2d 459, 214 USPQ 933 (CCPA 1982)
In re Facius, 408 F.2d 1396, 1406, 161 USPQ 294, 301 (CCPA 1969)
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Effect of International Publication
In re Katz, 687 F.2d 450, 215 USPQ 14 (CCPA 1982)
Publication LanguageIn re Land, 368 F.2d 866, 151 USPQ 621 (CCPA 1966)
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Effect of International Publication
Pre-AIA 102(f) – Derivation (MPEP 2137)
Prior Art Under Pre-AIA 35 U.S.C. 102 (MPEP 2131-2138)
In re Mathews, 408 F.2d 1393, 161 USPQ 276 (CCPA 1969)
AIA 102(a)(2) – Earlier Filed Applications (MPEP 2154)
Antedating Reference – Pre-AIA (MPEP 2136.05)
Effect of International Publication
In re Whittle, 454 F.2d 1193, 1195, 172 USPQ 535, 537 (CCPA 1972)

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