MPEP § 716.02(b) — Burden on Applicant (Annotated Rules)

§716.02(b) Burden on Applicant

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

This page consolidates and annotates all enforceable requirements under MPEP § 716.02(b), including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.

Burden on Applicant

This section addresses Burden on Applicant. Primary authority: 37 CFR 716.02(e). Contains: 1 guidance statement, 1 permission, and 3 other statements.

Key Rules

Topic

Establishing Prima Facie Case

3 rules
MPEP GuidancePermittedAlways
[mpep-716-02-b-71ec6fb8f32ab9a93ab0e3ed]
Evidence for Unexpected Properties Must Compare Invention to Prior Art
Note:
The rule requires that evidence of unexpected properties must be shown by comparing the claimed invention with the closest prior art, which should match the scope of the claims.

Evidence of unexpected properties may be in the form of a direct or indirect comparison of the claimed invention with the closest prior art which is commensurate in scope with the claims. See In re Boesch, 617 F.2d 272, 205 USPQ 215 (CCPA 1980) and MPEP § 716.02(d)§ 716.02(e). See In re Blondel, 499 F.2d 1311, 1317, 182 USPQ 294, 298 (CCPA 1974) and In re Fouche, 439 F.2d 1237, 1241-42, 169 USPQ 429, 433 (CCPA 1971) for examples of cases where indirect comparative testing was found sufficient to rebut a prima facie case of obviousness.

Jump to MPEP Source · 37 CFR 716.02(e)Establishing Prima Facie CaseRebutting Prima Facie CasePrima Facie Case of Obviousness
MPEP GuidanceInformativeAlways
[mpep-716-02-b-b2e1a9a2666a431d0a5e3027]
Requirement for Comparative Testing to Establish Prima Facie Case
Note:
The rule requires that evidence of unexpected properties must be in the form of a comparison with the closest prior art, either directly or indirectly, to establish a prima facie case of non-obviousness.

Evidence of unexpected properties may be in the form of a direct or indirect comparison of the claimed invention with the closest prior art which is commensurate in scope with the claims. See In re Boesch, 617 F.2d 272, 205 USPQ 215 (CCPA 1980) and MPEP § 716.02(d)§ 716.02(e). See In re Blondel, 499 F.2d 1311, 1317, 182 USPQ 294, 298 (CCPA 1974) and In re Fouche, 439 F.2d 1237, 1241-42, 169 USPQ 429, 433 (CCPA 1971) for examples of cases where indirect comparative testing was found sufficient to rebut a prima facie case of obviousness.

Jump to MPEP Source · 37 CFR 716.02(e)Establishing Prima Facie CaseRebutting Prima Facie CasePrima Facie Case of Obviousness
MPEP GuidanceInformativeAlways
[mpep-716-02-b-575284ef569e250ef94b13b4]
Indirect Comparative Testing Sufficient to Rebut Obviousness
Note:
This rule states that indirect comparative testing can be used to rebut a prima facie case of obviousness, as demonstrated in In re Blondel and In re Fouche.

Evidence of unexpected properties may be in the form of a direct or indirect comparison of the claimed invention with the closest prior art which is commensurate in scope with the claims. See In re Boesch, 617 F.2d 272, 205 USPQ 215 (CCPA 1980) and MPEP § 716.02(d)§ 716.02(e). See In re Blondel, 499 F.2d 1311, 1317, 182 USPQ 294, 298 (CCPA 1974) and In re Fouche, 439 F.2d 1237, 1241-42, 169 USPQ 429, 433 (CCPA 1971) for examples of cases where indirect comparative testing was found sufficient to rebut a prima facie case of obviousness.

Jump to MPEP Source · 37 CFR 716.02(e)Establishing Prima Facie CaseRebutting Prima Facie CasePrima Facie Case of Obviousness
Topic

Inventor's Oath/Declaration Requirements

2 rules
MPEP GuidanceRecommendedAlways
[mpep-716-02-b-131d6d7240e4bcd52eeb56c9]
Evidence Must Establish Unexpected Results Statistically and Practically Significant
Note:
The evidence must demonstrate that the differences in results are unexpected, unobvious, and significant both statistically and practically.

The evidence relied upon should establish “that the differences in results are in fact unexpected and unobvious and of both statistical and practical significance.” Ex parte Gelles, 22 USPQ2d 1318, 1319 (Bd. Pat. App. & Inter. 1992) (Mere conclusions in appellants’ brief that the claimed polymer had an unexpectedly increased impact strength “are not entitled to the weight of conclusions accompanying the evidence, either in the specification or in a declaration.”); Ex parte C, 27 USPQ2d 1492 (Bd. Pat. App. & Inter. 1992) (Applicant alleged unexpected results with regard to the claimed soybean plant, however there was no basis for judging the practical significance of data with regard to maturity date, flowering date, flower color, or height of the plant.). See also In re Nolan, 553 F.2d 1261, 1267, 193 USPQ 641, 645 (CCPA 1977) and In re Eli Lilly, 902 F.2d 943, 14 USPQ2d 1741 (Fed. Cir. 1990) as discussed in MPEP § 716.02(c).

Jump to MPEP SourceInventor's Oath/Declaration RequirementsPatent Application Content
MPEP GuidanceInformativeAlways
[mpep-716-02-b-463737374736f11c2db0a191]
Evidence Required for Unexpected Results
Note:
The evidence must establish that the differences in results are unexpected, unobvious, and have statistical and practical significance.

The evidence relied upon should establish “that the differences in results are in fact unexpected and unobvious and of both statistical and practical significance.” Ex parte Gelles, 22 USPQ2d 1318, 1319 (Bd. Pat. App. & Inter. 1992) (Mere conclusions in appellants’ brief that the claimed polymer had an unexpectedly increased impact strength “are not entitled to the weight of conclusions accompanying the evidence, either in the specification or in a declaration.”); Ex parte C, 27 USPQ2d 1492 (Bd. Pat. App. & Inter. 1992) (Applicant alleged unexpected results with regard to the claimed soybean plant, however there was no basis for judging the practical significance of data with regard to maturity date, flowering date, flower color, or height of the plant.). See also In re Nolan, 553 F.2d 1261, 1267, 193 USPQ 641, 645 (CCPA 1977) and In re Eli Lilly, 902 F.2d 943, 14 USPQ2d 1741 (Fed. Cir. 1990) as discussed in MPEP § 716.02(c).

Jump to MPEP SourceInventor's Oath/Declaration RequirementsPatent Application Content

Citations

Primary topicCitation
Establishing Prima Facie Case37 CFR § 716.02(e)
Inventor's Oath/Declaration RequirementsMPEP § 716.02(c)
Establishing Prima Facie CaseMPEP § 716.02(d)
Establishing Prima Facie CaseIn re Blondel, 499 F.2d 1311, 1317, 182 USPQ 294, 298 (CCPA 1974)
Establishing Prima Facie CaseIn re Boesch, 617 F.2d 272, 205 USPQ 215 (CCPA 1980)
Inventor's Oath/Declaration RequirementsIn re Eli Lilly, 902 F.2d 943, 14 USPQ2d 1741 (Fed. Cir. 1990)
In re Magerlein, 602 F.2d 366, 373, 202 USPQ 473, 479 (CCPA 1979)
Inventor's Oath/Declaration RequirementsIn re Nolan, 553 F.2d 1261, 1267, 193 USPQ 641, 645 (CCPA 1977)

Source Text from USPTO’s MPEP

This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.

BlueIron Last Updated: 2025-12-31