MPEP § 2164.08 — Enablement Commensurate in Scope With the Claims (Annotated Rules)
§2164.08 Enablement Commensurate in Scope With the Claims
This page consolidates and annotates all enforceable requirements under MPEP § 2164.08, 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.
Enablement Commensurate in Scope With the Claims
This section addresses Enablement Commensurate in Scope With the Claims. Primary authority: 35 U.S.C. 112(d), 35 U.S.C. 112, and 35 U.S.C. 112(a). Contains: 13 requirements, 1 prohibition, 3 guidance statements, 1 permission, and 5 other statements.
Key Rules
Scope Commensurate with Disclosure
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
The courts have repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’” or that any experimentation must be “reasonable”. See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 2023 USPQ2d 602 (2023); McRO, Inc. v. Bandai Namco Games Am. Inc., 959 F.3d 1091, 2020 USPQ2d 10550 (Fed. Cir. 2020); Wyeth & Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013); Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019); and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019). See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well-known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). All that is necessary is that one skilled in the art be able to practice the claimed invention, given the level of knowledge and skill in the art. Further, the scope of enablement must only bear a “reasonable correlation” to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970). See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) (The Court stated that “[t]he more one claims, the more one must enable.)”.
The courts have repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’” or that any experimentation must be “reasonable”. See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 2023 USPQ2d 602 (2023); McRO, Inc. v. Bandai Namco Games Am. Inc., 959 F.3d 1091, 2020 USPQ2d 10550 (Fed. Cir. 2020); Wyeth & Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013); Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019); and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019). See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well-known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). All that is necessary is that one skilled in the art be able to practice the claimed invention, given the level of knowledge and skill in the art. Further, the scope of enablement must only bear a “reasonable correlation” to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970). See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) (The Court stated that “[t]he more one claims, the more one must enable.)”.
The courts have repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’” or that any experimentation must be “reasonable”. See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 2023 USPQ2d 602 (2023); McRO, Inc. v. Bandai Namco Games Am. Inc., 959 F.3d 1091, 2020 USPQ2d 10550 (Fed. Cir. 2020); Wyeth & Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013); Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019); and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019). See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well-known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). All that is necessary is that one skilled in the art be able to practice the claimed invention, given the level of knowledge and skill in the art. Further, the scope of enablement must only bear a “reasonable correlation” to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970). See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) (The Court stated that “[t]he more one claims, the more one must enable.)”.
Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019) See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993).
The courts have repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’” or that any experimentation must be “reasonable”. See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 2023 USPQ2d 602 (2023); McRO, Inc. v. Bandai Namco Games Am. Inc., 959 F.3d 1091, 2020 USPQ2d 10550 (Fed. Cir. 2020); Wyeth & Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013); Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019); and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019). See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well-known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). All that is necessary is that one skilled in the art be able to practice the claimed invention, given the level of knowledge and skill in the art. Further, the scope of enablement must only bear a “reasonable correlation” to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970). See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) (The Court stated that “[t]he more one claims, the more one must enable.)”.
The courts have repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’” or that any experimentation must be “reasonable”. See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 2023 USPQ2d 602 (2023); McRO, Inc. v. Bandai Namco Games Am. Inc., 959 F.3d 1091, 2020 USPQ2d 10550 (Fed. Cir. 2020); Wyeth & Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013); Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019); and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019). See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well-known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). All that is necessary is that one skilled in the art be able to practice the claimed invention, given the level of knowledge and skill in the art. Further, the scope of enablement must only bear a “reasonable correlation” to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970). See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) (The Court stated that “[t]he more one claims, the more one must enable.)”.
The courts have repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’” or that any experimentation must be “reasonable”. See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 2023 USPQ2d 602 (2023); McRO, Inc. v. Bandai Namco Games Am. Inc., 959 F.3d 1091, 2020 USPQ2d 10550 (Fed. Cir. 2020); Wyeth & Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013); Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019); and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019). See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well-known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). All that is necessary is that one skilled in the art be able to practice the claimed invention, given the level of knowledge and skill in the art. Further, the scope of enablement must only bear a “reasonable correlation” to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970). See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) (The Court stated that “[t]he more one claims, the more one must enable.)”.
With respect to the breadth of a claim, the relevant concern is whether the scope of enablement provided to one skilled in the art by the disclosure is commensurate with the scope of protection sought by the claims. The Federal Circuit, citing McRO, provided guidance on the application of enablement to genus claims, holding that “[a]lthough a specification does not need to describe how to make and use every possible variant of the claimed invention, when a range is claimed, there must be reasonable enablement of the scope of the range.” Sanofi-Aventisub, 987 F.3d at 1085 (internal quotations omitted). AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003); In re Moore, 439 F.2d 1232, 1236, 169 USPQ 236, 239 (CCPA 1971). See also Plant Genetic Sys., N.V. v. DeKalb Genetics Corp., 315 F.3d 1335, 1339, 65 USPQ2d 1452, 1455 (Fed. Cir. 2003) (alleged “pioneer status” of invention irrelevant to enablement determination).
With respect to the breadth of a claim, the relevant concern is whether the scope of enablement provided to one skilled in the art by the disclosure is commensurate with the scope of protection sought by the claims. The Federal Circuit, citing McRO, provided guidance on the application of enablement to genus claims, holding that “[a]lthough a specification does not need to describe how to make and use every possible variant of the claimed invention, when a range is claimed, there must be reasonable enablement of the scope of the range.” Sanofi-Aventisub, 987 F.3d at 1085 (internal quotations omitted). AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003); In re Moore, 439 F.2d 1232, 1236, 169 USPQ 236, 239 (CCPA 1971). See also Plant Genetic Sys., N.V. v. DeKalb Genetics Corp., 315 F.3d 1335, 1339, 65 USPQ2d 1452, 1455 (Fed. Cir. 2003) (alleged “pioneer status” of invention irrelevant to enablement determination).
An enabling disclosure may be set forth by specific example or broad terminology; the exact form of disclosure is not dispositive. In re Marzocchi, 439 F.2d 220, 223-24 169 USPQ 367, 370 (CCPA 1971). A rejection of a claim under 35 U.S.C. 112 as broader than the enabling disclosure is a 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph, enablement rejection and not a 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph, definiteness rejection. Claims are not rejected as broader than the enabling disclosure under 35 U.S.C. 112 for noninclusion of limitations dealing with factors which must be presumed to be within the level of ordinary skill in the art; the claims need not recite such factors where one of ordinary skill in the art to whom the specification and claims are directed would consider them obvious. In re Skrivan, 427 F.2d 801, 806, 166 USPQ 85, 88 (CCPA 1970). One does not look to the claims but to the specification to find out how to practice the claimed invention. W.L. Gore & Assoc., Inc. v. Garlock, Inc., 721 F.2d 1540, 1558, 220 USPQ 303, 316-17 (Fed. Cir. 1983); In re Johnson, 558 F.2d 1008, 1017, 194 USPQ 187, 195 (CCPA 1977). In In re Goffe, 542 F.2d 564, 567, 191 USPQ 429, 431 (CCPA 1976), the court stated:
An enabling disclosure may be set forth by specific example or broad terminology; the exact form of disclosure is not dispositive. In re Marzocchi, 439 F.2d 220, 223-24 169 USPQ 367, 370 (CCPA 1971). A rejection of a claim under 35 U.S.C. 112 as broader than the enabling disclosure is a 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph, enablement rejection and not a 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph, definiteness rejection. Claims are not rejected as broader than the enabling disclosure under 35 U.S.C. 112 for noninclusion of limitations dealing with factors which must be presumed to be within the level of ordinary skill in the art; the claims need not recite such factors where one of ordinary skill in the art to whom the specification and claims are directed would consider them obvious. In re Skrivan, 427 F.2d 801, 806, 166 USPQ 85, 88 (CCPA 1970). One does not look to the claims but to the specification to find out how to practice the claimed invention. W.L. Gore & Assoc., Inc. v. Garlock, Inc., 721 F.2d 1540, 1558, 220 USPQ 303, 316-17 (Fed. Cir. 1983); In re Johnson, 558 F.2d 1008, 1017, 194 USPQ 187, 195 (CCPA 1977). In In re Goffe, 542 F.2d 564, 567, 191 USPQ 429, 431 (CCPA 1976), the court stated:
When analyzing the enabled scope of a claim, the teachings of the specification must not be ignored because claims are to be given their broadest reasonable interpretation that is consistent with the specification. “That claims are interpreted in light of the specification does not mean that everything in the specification must be read into the claims.” Raytheon Co. v. Roper Corp., 724 F.2d 951, 957, 220 USPQ 592, 597 (Fed. Cir. 1983), cert. denied, 469 U.S. 835 (1984).
When analyzing the enabled scope of a claim, the teachings of the specification must not be ignored because claims are to be given their broadest reasonable interpretation that is consistent with the specification. “That claims are interpreted in light of the specification does not mean that everything in the specification must be read into the claims.” Raytheon Co. v. Roper Corp., 724 F.2d 951, 957, 220 USPQ 592, 597 (Fed. Cir. 1983), cert. denied, 469 U.S. 835 (1984).
The record must be clear so that the public will have notice as to the patentee’s scope of protection when the patent issues. If a reasonable interpretation of the claim is broader than the description in the specification, it is necessary for the examiner to make sure the full scope of the claim is enabled. Limitations and examples in the specification do not generally limit what is covered by the claims. See also United Therapeutics Corp. v Liquidia Techs., Inc., 74 F.4th 1360, 1370, 2023 USPQ2d 862 (Fed. Cir. 2023) (the court found that the claims directed to administration of treprostinil to treat all five types of pulmonary hypertension, which were construed to not require safety and efficacy, were adequately enabled by the specification which described administration, concentrations and dosages as well as an open label study despite potential safety concerns associated with one type of pulmonary hypotension. The record included evidence that “a skilled artisan would understand that the claimed administration of treprostinil would vasodilate the pulmonary vasculature, improve hemodynamics, and in this way for a single dose, treat a patient’s elevated pulmonary blood pressure independent of the type (i.e., group) of pulmonary hypertension patient.”).
The record must be clear so that the public will have notice as to the patentee’s scope of protection when the patent issues. If a reasonable interpretation of the claim is broader than the description in the specification, it is necessary for the examiner to make sure the full scope of the claim is enabled. Limitations and examples in the specification do not generally limit what is covered by the claims. See also United Therapeutics Corp. v Liquidia Techs., Inc., 74 F.4th 1360, 1370, 2023 USPQ2d 862 (Fed. Cir. 2023) (the court found that the claims directed to administration of treprostinil to treat all five types of pulmonary hypertension, which were construed to not require safety and efficacy, were adequately enabled by the specification which described administration, concentrations and dosages as well as an open label study despite potential safety concerns associated with one type of pulmonary hypotension. The record included evidence that “a skilled artisan would understand that the claimed administration of treprostinil would vasodilate the pulmonary vasculature, improve hemodynamics, and in this way for a single dose, treat a patient’s elevated pulmonary blood pressure independent of the type (i.e., group) of pulmonary hypertension patient.”).
The record must be clear so that the public will have notice as to the patentee’s scope of protection when the patent issues. If a reasonable interpretation of the claim is broader than the description in the specification, it is necessary for the examiner to make sure the full scope of the claim is enabled. Limitations and examples in the specification do not generally limit what is covered by the claims. See also United Therapeutics Corp. v Liquidia Techs., Inc., 74 F.4th 1360, 1370, 2023 USPQ2d 862 (Fed. Cir. 2023) (the court found that the claims directed to administration of treprostinil to treat all five types of pulmonary hypertension, which were construed to not require safety and efficacy, were adequately enabled by the specification which described administration, concentrations and dosages as well as an open label study despite potential safety concerns associated with one type of pulmonary hypotension. The record included evidence that “a skilled artisan would understand that the claimed administration of treprostinil would vasodilate the pulmonary vasculature, improve hemodynamics, and in this way for a single dose, treat a patient’s elevated pulmonary blood pressure independent of the type (i.e., group) of pulmonary hypertension patient.”).
Amgen has not enabled preparation of DNA sequences sufficient to support its all-encompassing claims…. [D]espite extensive statements in the specification concerning all the analogs of the EPO gene that can be made, there is little enabling disclosure of particular analogs and how to make them. Details for preparing only a few EPO analog genes are disclosed…. This disclosure might well justify a generic claim encompassing these and similar analogs, but it represents inadequate support for Amgen’s desire to claim all EPO gene analogs. There may be many other genetic sequences that code for EPO-type products. Amgen has told how to make and use only a few of them and is therefore not entitled to claim all of them.
Amgen has not enabled preparation of DNA sequences sufficient to support its all-encompassing claims…. [D]espite extensive statements in the specification concerning all the analogs of the EPO gene that can be made, there is little enabling disclosure of particular analogs and how to make them. Details for preparing only a few EPO analog genes are disclosed…. This disclosure might well justify a generic claim encompassing these and similar analogs, but it represents inadequate support for Amgen’s desire to claim all EPO gene analogs. There may be many other genetic sequences that code for EPO-type products. Amgen has told how to make and use only a few of them and is therefore not entitled to claim all of them.
See also In re Wright, 999 F.2d 1557, 1562, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993) (The evidence did not show that a skilled artisan would have been able to carry out the steps required to practice the full scope of claims which encompass “ any and all live, non-pathogenic vaccines, and processes for making such vaccines, which elicit immunoprotective activity in any animal toward any RNA virus.” (original emphasis)); In re Goodman, 11 F.3d 1046, 1052, 29 USPQ2d 2010, 2015 (Fed. Cir. 1993) (The specification did not enable the broad scope of the claims for producing mammalian peptides in plant cells because the specification contained only an example of producing gamma-interferon in a dicot species, and there was evidence that extensive experimentation would have been required for encoding mammalian peptide into a monocot plant at the time of filing); In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970) (Where applicant claimed a composition suitable for the treatment of arthritis having a potency of “at least” a particular value, the court held that the claim was not commensurate in scope with the enabling disclosure because the disclosure was not enabling for compositions having a slightly higher potency. Simply because applicant was the first to achieve a composition beyond a particular threshold potency did not justify or support a claim that would dominate every composition that exceeded that threshold value.); In re Vaeck, 947 F.2d 488, 495, 20 USPQ2d 1438, 1444 (Fed. Cir. 1991) (Given the relatively incomplete understanding in the biotechnological field involved, and the lack of a reasonable correlation between the narrow disclosure in the specification and the broad scope of protection sought in the claims, a rejection under 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph for lack of enablement was appropriate.); Pac. Biosciences of Cal., Inc. v. Oxford Nanopore Techs., Inc., 996 F.3d 1342, 1352, 2021 USPQ2d 519 (Fed. Cir. 2021) (The court found that undue experimentation was required to enable the full scope of the claims where there was ample evidence that relevant artisans would not know how to perform the claimed invention for more than a narrow range of the claimed scope of invention).
See also In re Wright, 999 F.2d 1557, 1562, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993) (The evidence did not show that a skilled artisan would have been able to carry out the steps required to practice the full scope of claims which encompass “ any and all live, non-pathogenic vaccines, and processes for making such vaccines, which elicit immunoprotective activity in any animal toward any RNA virus.” (original emphasis)); In re Goodman, 11 F.3d 1046, 1052, 29 USPQ2d 2010, 2015 (Fed. Cir. 1993) (The specification did not enable the broad scope of the claims for producing mammalian peptides in plant cells because the specification contained only an example of producing gamma-interferon in a dicot species, and there was evidence that extensive experimentation would have been required for encoding mammalian peptide into a monocot plant at the time of filing); In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970) (Where applicant claimed a composition suitable for the treatment of arthritis having a potency of “at least” a particular value, the court held that the claim was not commensurate in scope with the enabling disclosure because the disclosure was not enabling for compositions having a slightly higher potency. Simply because applicant was the first to achieve a composition beyond a particular threshold potency did not justify or support a claim that would dominate every composition that exceeded that threshold value.); In re Vaeck, 947 F.2d 488, 495, 20 USPQ2d 1438, 1444 (Fed. Cir. 1991) (Given the relatively incomplete understanding in the biotechnological field involved, and the lack of a reasonable correlation between the narrow disclosure in the specification and the broad scope of protection sought in the claims, a rejection under 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph for lack of enablement was appropriate.); Pac. Biosciences of Cal., Inc. v. Oxford Nanopore Techs., Inc., 996 F.3d 1342, 1352, 2021 USPQ2d 519 (Fed. Cir. 2021) (The court found that undue experimentation was required to enable the full scope of the claims where there was ample evidence that relevant artisans would not know how to perform the claimed invention for more than a narrow range of the claimed scope of invention).
See also In re Wright, 999 F.2d 1557, 1562, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993) (The evidence did not show that a skilled artisan would have been able to carry out the steps required to practice the full scope of claims which encompass “ any and all live, non-pathogenic vaccines, and processes for making such vaccines, which elicit immunoprotective activity in any animal toward any RNA virus.” (original emphasis)); In re Goodman, 11 F.3d 1046, 1052, 29 USPQ2d 2010, 2015 (Fed. Cir. 1993) (The specification did not enable the broad scope of the claims for producing mammalian peptides in plant cells because the specification contained only an example of producing gamma-interferon in a dicot species, and there was evidence that extensive experimentation would have been required for encoding mammalian peptide into a monocot plant at the time of filing); In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970) (Where applicant claimed a composition suitable for the treatment of arthritis having a potency of “at least” a particular value, the court held that the claim was not commensurate in scope with the enabling disclosure because the disclosure was not enabling for compositions having a slightly higher potency. Simply because applicant was the first to achieve a composition beyond a particular threshold potency did not justify or support a claim that would dominate every composition that exceeded that threshold value.); In re Vaeck, 947 F.2d 488, 495, 20 USPQ2d 1438, 1444 (Fed. Cir. 1991) (Given the relatively incomplete understanding in the biotechnological field involved, and the lack of a reasonable correlation between the narrow disclosure in the specification and the broad scope of protection sought in the claims, a rejection under 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph for lack of enablement was appropriate.); Pac. Biosciences of Cal., Inc. v. Oxford Nanopore Techs., Inc., 996 F.3d 1342, 1352, 2021 USPQ2d 519 (Fed. Cir. 2021) (The court found that undue experimentation was required to enable the full scope of the claims where there was ample evidence that relevant artisans would not know how to perform the claimed invention for more than a narrow range of the claimed scope of invention).
Enablement Support for Claims
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
The courts have repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’” or that any experimentation must be “reasonable”. See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 2023 USPQ2d 602 (2023); McRO, Inc. v. Bandai Namco Games Am. Inc., 959 F.3d 1091, 2020 USPQ2d 10550 (Fed. Cir. 2020); Wyeth & Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013); Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019); and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019). See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well-known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). All that is necessary is that one skilled in the art be able to practice the claimed invention, given the level of knowledge and skill in the art. Further, the scope of enablement must only bear a “reasonable correlation” to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970). See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) (The Court stated that “[t]he more one claims, the more one must enable.)”.
The courts have repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’” or that any experimentation must be “reasonable”. See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 2023 USPQ2d 602 (2023); McRO, Inc. v. Bandai Namco Games Am. Inc., 959 F.3d 1091, 2020 USPQ2d 10550 (Fed. Cir. 2020); Wyeth & Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013); Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019); and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019). See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well-known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). All that is necessary is that one skilled in the art be able to practice the claimed invention, given the level of knowledge and skill in the art. Further, the scope of enablement must only bear a “reasonable correlation” to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970). See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) (The Court stated that “[t]he more one claims, the more one must enable.)”.
With respect to the breadth of a claim, the relevant concern is whether the scope of enablement provided to one skilled in the art by the disclosure is commensurate with the scope of protection sought by the claims. The Federal Circuit, citing McRO, provided guidance on the application of enablement to genus claims, holding that “[a]lthough a specification does not need to describe how to make and use every possible variant of the claimed invention, when a range is claimed, there must be reasonable enablement of the scope of the range.” Sanofi-Aventisub, 987 F.3d at 1085 (internal quotations omitted). AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003); In re Moore, 439 F.2d 1232, 1236, 169 USPQ 236, 239 (CCPA 1971). See also Plant Genetic Sys., N.V. v. DeKalb Genetics Corp., 315 F.3d 1335, 1339, 65 USPQ2d 1452, 1455 (Fed. Cir. 2003) (alleged “pioneer status” of invention irrelevant to enablement determination).
With respect to the breadth of a claim, the relevant concern is whether the scope of enablement provided to one skilled in the art by the disclosure is commensurate with the scope of protection sought by the claims. The Federal Circuit, citing McRO, provided guidance on the application of enablement to genus claims, holding that “[a]lthough a specification does not need to describe how to make and use every possible variant of the claimed invention, when a range is claimed, there must be reasonable enablement of the scope of the range.” Sanofi-Aventisub, 987 F.3d at 1085 (internal quotations omitted). AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003); In re Moore, 439 F.2d 1232, 1236, 169 USPQ 236, 239 (CCPA 1971). See also Plant Genetic Sys., N.V. v. DeKalb Genetics Corp., 315 F.3d 1335, 1339, 65 USPQ2d 1452, 1455 (Fed. Cir. 2003) (alleged “pioneer status” of invention irrelevant to enablement determination).
The propriety of a rejection based upon the scope of a claim relative to the scope of the enablement concerns (1) how broad the claim is with respect to the disclosure and (2) whether one skilled in the art could make and use the entire scope of the claimed invention without undue experimentation. A scope of enablement rejection must identify the claimed subject matter for which the specification is not enabling and explain why the specification is not enabling, applying the factors set forth in In re Wands, 858 F.2d 731, 737, 8 USPQ2d 1400, 1404 (Fed. Cir. 1998). See also MPEP §§ 2164.01(a) and 2164.04. The explanation should include any questions posed by the examiner which were not satisfactorily resolved and consequently raise doubt as to enablement.
An enabling disclosure may be set forth by specific example or broad terminology; the exact form of disclosure is not dispositive. In re Marzocchi, 439 F.2d 220, 223-24 169 USPQ 367, 370 (CCPA 1971). A rejection of a claim under 35 U.S.C. 112 as broader than the enabling disclosure is a 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph, enablement rejection and not a 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph, definiteness rejection. Claims are not rejected as broader than the enabling disclosure under 35 U.S.C. 112 for noninclusion of limitations dealing with factors which must be presumed to be within the level of ordinary skill in the art; the claims need not recite such factors where one of ordinary skill in the art to whom the specification and claims are directed would consider them obvious. In re Skrivan, 427 F.2d 801, 806, 166 USPQ 85, 88 (CCPA 1970). One does not look to the claims but to the specification to find out how to practice the claimed invention. W.L. Gore & Assoc., Inc. v. Garlock, Inc., 721 F.2d 1540, 1558, 220 USPQ 303, 316-17 (Fed. Cir. 1983); In re Johnson, 558 F.2d 1008, 1017, 194 USPQ 187, 195 (CCPA 1977). In In re Goffe, 542 F.2d 564, 567, 191 USPQ 429, 431 (CCPA 1976), the court stated:
Amgen has not enabled preparation of DNA sequences sufficient to support its all-encompassing claims…. [D]espite extensive statements in the specification concerning all the analogs of the EPO gene that can be made, there is little enabling disclosure of particular analogs and how to make them. Details for preparing only a few EPO analog genes are disclosed…. This disclosure might well justify a generic claim encompassing these and similar analogs, but it represents inadequate support for Amgen’s desire to claim all EPO gene analogs. There may be many other genetic sequences that code for EPO-type products. Amgen has told how to make and use only a few of them and is therefore not entitled to claim all of them.
Claims
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
The courts have repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’” or that any experimentation must be “reasonable”. See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 2023 USPQ2d 602 (2023); McRO, Inc. v. Bandai Namco Games Am. Inc., 959 F.3d 1091, 2020 USPQ2d 10550 (Fed. Cir. 2020); Wyeth & Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013); Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019); and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019). See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well-known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). All that is necessary is that one skilled in the art be able to practice the claimed invention, given the level of knowledge and skill in the art. Further, the scope of enablement must only bear a “reasonable correlation” to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970). See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) (The Court stated that “[t]he more one claims, the more one must enable.)”.
An enabling disclosure may be set forth by specific example or broad terminology; the exact form of disclosure is not dispositive. In re Marzocchi, 439 F.2d 220, 223-24 169 USPQ 367, 370 (CCPA 1971). A rejection of a claim under 35 U.S.C. 112 as broader than the enabling disclosure is a 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph, enablement rejection and not a 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph, definiteness rejection. Claims are not rejected as broader than the enabling disclosure under 35 U.S.C. 112 for noninclusion of limitations dealing with factors which must be presumed to be within the level of ordinary skill in the art; the claims need not recite such factors where one of ordinary skill in the art to whom the specification and claims are directed would consider them obvious. In re Skrivan, 427 F.2d 801, 806, 166 USPQ 85, 88 (CCPA 1970). One does not look to the claims but to the specification to find out how to practice the claimed invention. W.L. Gore & Assoc., Inc. v. Garlock, Inc., 721 F.2d 1540, 1558, 220 USPQ 303, 316-17 (Fed. Cir. 1983); In re Johnson, 558 F.2d 1008, 1017, 194 USPQ 187, 195 (CCPA 1977). In In re Goffe, 542 F.2d 564, 567, 191 USPQ 429, 431 (CCPA 1976), the court stated:
When analyzing the enabled scope of a claim, the teachings of the specification must not be ignored because claims are to be given their broadest reasonable interpretation that is consistent with the specification. “That claims are interpreted in light of the specification does not mean that everything in the specification must be read into the claims.” Raytheon Co. v. Roper Corp., 724 F.2d 951, 957, 220 USPQ 592, 597 (Fed. Cir. 1983), cert. denied, 469 U.S. 835 (1984).
The record must be clear so that the public will have notice as to the patentee’s scope of protection when the patent issues. If a reasonable interpretation of the claim is broader than the description in the specification, it is necessary for the examiner to make sure the full scope of the claim is enabled. Limitations and examples in the specification do not generally limit what is covered by the claims. See also United Therapeutics Corp. v Liquidia Techs., Inc., 74 F.4th 1360, 1370, 2023 USPQ2d 862 (Fed. Cir. 2023) (the court found that the claims directed to administration of treprostinil to treat all five types of pulmonary hypertension, which were construed to not require safety and efficacy, were adequately enabled by the specification which described administration, concentrations and dosages as well as an open label study despite potential safety concerns associated with one type of pulmonary hypotension. The record included evidence that “a skilled artisan would understand that the claimed administration of treprostinil would vasodilate the pulmonary vasculature, improve hemodynamics, and in this way for a single dose, treat a patient’s elevated pulmonary blood pressure independent of the type (i.e., group) of pulmonary hypertension patient.”).
Test of Enablement (MPEP 2164.01)
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
The propriety of a rejection based upon the scope of a claim relative to the scope of the enablement concerns (1) how broad the claim is with respect to the disclosure and (2) whether one skilled in the art could make and use the entire scope of the claimed invention without undue experimentation. A scope of enablement rejection must identify the claimed subject matter for which the specification is not enabling and explain why the specification is not enabling, applying the factors set forth in In re Wands, 858 F.2d 731, 737, 8 USPQ2d 1400, 1404 (Fed. Cir. 1998). See also MPEP §§ 2164.01(a) and 2164.04. The explanation should include any questions posed by the examiner which were not satisfactorily resolved and consequently raise doubt as to enablement.
Determining Whether Application Is AIA or Pre-AIA
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
An enabling disclosure may be set forth by specific example or broad terminology; the exact form of disclosure is not dispositive. In re Marzocchi, 439 F.2d 220, 223-24 169 USPQ 367, 370 (CCPA 1971). A rejection of a claim under 35 U.S.C. 112 as broader than the enabling disclosure is a 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph, enablement rejection and not a 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph, definiteness rejection. Claims are not rejected as broader than the enabling disclosure under 35 U.S.C. 112 for noninclusion of limitations dealing with factors which must be presumed to be within the level of ordinary skill in the art; the claims need not recite such factors where one of ordinary skill in the art to whom the specification and claims are directed would consider them obvious. In re Skrivan, 427 F.2d 801, 806, 166 USPQ 85, 88 (CCPA 1970). One does not look to the claims but to the specification to find out how to practice the claimed invention. W.L. Gore & Assoc., Inc. v. Garlock, Inc., 721 F.2d 1540, 1558, 220 USPQ 303, 316-17 (Fed. Cir. 1983); In re Johnson, 558 F.2d 1008, 1017, 194 USPQ 187, 195 (CCPA 1977). In In re Goffe, 542 F.2d 564, 567, 191 USPQ 429, 431 (CCPA 1976), the court stated:
Claim Subject Matter
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
AIA vs Pre-AIA Practice
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
Claims Directed To
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
Undue Experimentation
The propriety of a rejection based upon the scope of a claim relative to the scope of the enablement concerns (1) how broad the claim is with respect to the disclosure and (2) whether one skilled in the art could make and use the entire scope of the claimed invention without undue experimentation. A scope of enablement rejection must identify the claimed subject matter for which the specification is not enabling and explain why the specification is not enabling, applying the factors set forth in In re Wands, 858 F.2d 731, 737, 8 USPQ2d 1400, 1404 (Fed. Cir. 1998). See also MPEP §§ 2164.01(a) and 2164.04. The explanation should include any questions posed by the examiner which were not satisfactorily resolved and consequently raise doubt as to enablement.
Working and Prophetic Examples (MPEP 2164.02)
An enabling disclosure may be set forth by specific example or broad terminology; the exact form of disclosure is not dispositive. In re Marzocchi, 439 F.2d 220, 223-24 169 USPQ 367, 370 (CCPA 1971). A rejection of a claim under 35 U.S.C. 112 as broader than the enabling disclosure is a 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph, enablement rejection and not a 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph, definiteness rejection. Claims are not rejected as broader than the enabling disclosure under 35 U.S.C. 112 for noninclusion of limitations dealing with factors which must be presumed to be within the level of ordinary skill in the art; the claims need not recite such factors where one of ordinary skill in the art to whom the specification and claims are directed would consider them obvious. In re Skrivan, 427 F.2d 801, 806, 166 USPQ 85, 88 (CCPA 1970). One does not look to the claims but to the specification to find out how to practice the claimed invention. W.L. Gore & Assoc., Inc. v. Garlock, Inc., 721 F.2d 1540, 1558, 220 USPQ 303, 316-17 (Fed. Cir. 1983); In re Johnson, 558 F.2d 1008, 1017, 194 USPQ 187, 195 (CCPA 1977). In In re Goffe, 542 F.2d 564, 567, 191 USPQ 429, 431 (CCPA 1976), the court stated:
Genus and Species Claims
Amgen has not enabled preparation of DNA sequences sufficient to support its all-encompassing claims…. [D]espite extensive statements in the specification concerning all the analogs of the EPO gene that can be made, there is little enabling disclosure of particular analogs and how to make them. Details for preparing only a few EPO analog genes are disclosed…. This disclosure might well justify a generic claim encompassing these and similar analogs, but it represents inadequate support for Amgen’s desire to claim all EPO gene analogs. There may be many other genetic sequences that code for EPO-type products. Amgen has told how to make and use only a few of them and is therefore not entitled to claim all of them.
Assignee as Applicant Signature
See also In re Wright, 999 F.2d 1557, 1562, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993) (The evidence did not show that a skilled artisan would have been able to carry out the steps required to practice the full scope of claims which encompass “ any and all live, non-pathogenic vaccines, and processes for making such vaccines, which elicit immunoprotective activity in any animal toward any RNA virus.” (original emphasis)); In re Goodman, 11 F.3d 1046, 1052, 29 USPQ2d 2010, 2015 (Fed. Cir. 1993) (The specification did not enable the broad scope of the claims for producing mammalian peptides in plant cells because the specification contained only an example of producing gamma-interferon in a dicot species, and there was evidence that extensive experimentation would have been required for encoding mammalian peptide into a monocot plant at the time of filing); In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970) (Where applicant claimed a composition suitable for the treatment of arthritis having a potency of “at least” a particular value, the court held that the claim was not commensurate in scope with the enabling disclosure because the disclosure was not enabling for compositions having a slightly higher potency. Simply because applicant was the first to achieve a composition beyond a particular threshold potency did not justify or support a claim that would dominate every composition that exceeded that threshold value.); In re Vaeck, 947 F.2d 488, 495, 20 USPQ2d 1438, 1444 (Fed. Cir. 1991) (Given the relatively incomplete understanding in the biotechnological field involved, and the lack of a reasonable correlation between the narrow disclosure in the specification and the broad scope of protection sought in the claims, a rejection under 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph for lack of enablement was appropriate.); Pac. Biosciences of Cal., Inc. v. Oxford Nanopore Techs., Inc., 996 F.3d 1342, 1352, 2021 USPQ2d 519 (Fed. Cir. 2021) (The court found that undue experimentation was required to enable the full scope of the claims where there was ample evidence that relevant artisans would not know how to perform the claimed invention for more than a narrow range of the claimed scope of invention).
Breadth of Claims (Wands Factor)
See also In re Wright, 999 F.2d 1557, 1562, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993) (The evidence did not show that a skilled artisan would have been able to carry out the steps required to practice the full scope of claims which encompass “ any and all live, non-pathogenic vaccines, and processes for making such vaccines, which elicit immunoprotective activity in any animal toward any RNA virus.” (original emphasis)); In re Goodman, 11 F.3d 1046, 1052, 29 USPQ2d 2010, 2015 (Fed. Cir. 1993) (The specification did not enable the broad scope of the claims for producing mammalian peptides in plant cells because the specification contained only an example of producing gamma-interferon in a dicot species, and there was evidence that extensive experimentation would have been required for encoding mammalian peptide into a monocot plant at the time of filing); In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970) (Where applicant claimed a composition suitable for the treatment of arthritis having a potency of “at least” a particular value, the court held that the claim was not commensurate in scope with the enabling disclosure because the disclosure was not enabling for compositions having a slightly higher potency. Simply because applicant was the first to achieve a composition beyond a particular threshold potency did not justify or support a claim that would dominate every composition that exceeded that threshold value.); In re Vaeck, 947 F.2d 488, 495, 20 USPQ2d 1438, 1444 (Fed. Cir. 1991) (Given the relatively incomplete understanding in the biotechnological field involved, and the lack of a reasonable correlation between the narrow disclosure in the specification and the broad scope of protection sought in the claims, a rejection under 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph for lack of enablement was appropriate.); Pac. Biosciences of Cal., Inc. v. Oxford Nanopore Techs., Inc., 996 F.3d 1342, 1352, 2021 USPQ2d 519 (Fed. Cir. 2021) (The court found that undue experimentation was required to enable the full scope of the claims where there was ample evidence that relevant artisans would not know how to perform the claimed invention for more than a narrow range of the claimed scope of invention).
Citations
| Primary topic | Citation |
|---|---|
| AIA vs Pre-AIA Practice Assignee as Applicant Signature Breadth of Claims (Wands Factor) Claim Subject Matter Claims Claims Directed To Determining Whether Application Is AIA or Pre-AIA Enablement Support for Claims Scope Commensurate with Disclosure Test of Enablement (MPEP 2164.01) Working and Prophetic Examples (MPEP 2164.02) | 35 U.S.C. § 112 |
| Assignee as Applicant Signature Breadth of Claims (Wands Factor) Claims Determining Whether Application Is AIA or Pre-AIA Enablement Support for Claims Scope Commensurate with Disclosure Working and Prophetic Examples (MPEP 2164.02) | 35 U.S.C. § 112(a) |
| Claims Determining Whether Application Is AIA or Pre-AIA Enablement Support for Claims Scope Commensurate with Disclosure Working and Prophetic Examples (MPEP 2164.02) | 35 U.S.C. § 112(b) |
| AIA vs Pre-AIA Practice Claim Subject Matter Claims Claims Directed To Determining Whether Application Is AIA or Pre-AIA Enablement Support for Claims Scope Commensurate with Disclosure Test of Enablement (MPEP 2164.01) | 35 U.S.C. § 112(d) |
| AIA vs Pre-AIA Practice Claim Subject Matter Claims Claims Directed To Determining Whether Application Is AIA or Pre-AIA Enablement Support for Claims Scope Commensurate with Disclosure Test of Enablement (MPEP 2164.01) Undue Experimentation | MPEP § 2164.01(a) |
| AIA vs Pre-AIA Practice Claim Subject Matter Claims Claims Directed To Determining Whether Application Is AIA or Pre-AIA Enablement Support for Claims Scope Commensurate with Disclosure Test of Enablement (MPEP 2164.01) | AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) |
| Claims Enablement Support for Claims Scope Commensurate with Disclosure | Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013) |
| Claims Enablement Support for Claims Scope Commensurate with Disclosure | Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019) |
| Claims Enablement Support for Claims Scope Commensurate with Disclosure | In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991) |
| Assignee as Applicant Signature Breadth of Claims (Wands Factor) Claims Enablement Support for Claims Scope Commensurate with Disclosure | In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970) |
| Claims Determining Whether Application Is AIA or Pre-AIA Enablement Support for Claims Scope Commensurate with Disclosure Working and Prophetic Examples (MPEP 2164.02) | In re Goffe, 542 F.2d 564, 567, 191 USPQ 429, 431 (CCPA 1976) |
| Assignee as Applicant Signature Breadth of Claims (Wands Factor) Scope Commensurate with Disclosure | In re Goodman, 11 F.3d 1046, 1052, 29 USPQ2d 2010, 2015 (Fed. Cir. 1993) |
| Claims Determining Whether Application Is AIA or Pre-AIA Enablement Support for Claims Scope Commensurate with Disclosure Working and Prophetic Examples (MPEP 2164.02) | In re Johnson, 558 F.2d 1008, 1017, 194 USPQ 187, 195 (CCPA 1977) |
| Enablement Support for Claims Scope Commensurate with Disclosure | In re Moore, 439 F.2d 1232, 1236, 169 USPQ 236, 239 (CCPA 1971) |
| Claims Determining Whether Application Is AIA or Pre-AIA Enablement Support for Claims Scope Commensurate with Disclosure Working and Prophetic Examples (MPEP 2164.02) | In re Skrivan, 427 F.2d 801, 806, 166 USPQ 85, 88 (CCPA 1970) |
| Assignee as Applicant Signature Breadth of Claims (Wands Factor) Scope Commensurate with Disclosure | In re Vaeck, 947 F.2d 488, 495, 20 USPQ2d 1438, 1444 (Fed. Cir. 1991) |
| Enablement Support for Claims Test of Enablement (MPEP 2164.01) Undue Experimentation | In re Wands, 858 F.2d 731, 737, 8 USPQ2d 1400, 1404 (Fed. Cir. 1998) |
| Assignee as Applicant Signature Breadth of Claims (Wands Factor) Claims Enablement Support for Claims Scope Commensurate with Disclosure | In re Wright, 999 F.2d 1557, 1562, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993) |
| Claims Scope Commensurate with Disclosure | Raytheon Co. v. Roper Corp., 724 F.2d 951, 957, 220 USPQ 592, 597 (Fed. Cir. 1983) |
| Claims Enablement Support for Claims Scope Commensurate with Disclosure | See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) |
| Claims Enablement Support for Claims Scope Commensurate with Disclosure | and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019) |
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.
Official MPEP § 2164.08 — Enablement Commensurate in Scope With the Claims
Source: USPTO2164.08 Enablement Commensurate in Scope With the Claims [R-01.2024]
All questions of enablement are evaluated against the claimed subject matter. When considering whether claims in a utility patent application or patent are enabled, USPTO personnel will use the Wands factors to ascertain whether the amount of experimentation required to enable the full scope of the claimed invention is reasonable. See Guidelines for Assessing Enablement in Utility Applications and Patents in View of the Supreme Court Decision in Amgen Inc. et al. v. Sanofi et al., 89 FR 1563 (January 10, 2024). See also MPEP § 2164.01(a). The focus of the examination inquiry is whether everything within the scope of the claim is enabled. Accordingly, the first analytical step requires that the examiner determine exactly what subject matter is encompassed by the claims. See, e.g., AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003) (When a range is claimed, there must be reasonable enablement of the scope of the range. Here, the claims at issue encompassed amounts of silicon as high as 10% by weight, however the specification included statements clearly and strongly warning that a silicon content above 0.5% by weight in an aluminum coating causes coating problems. Such statements indicate that higher amounts will not work in the claimed invention.). The examiner should determine what each claim recites and what the subject matter is when the claim is considered as a whole, not when its parts are analyzed individually. No claim should be overlooked. With respect to dependent claims, 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, fourth paragraph, should be followed. These paragraphs state “a claim in a dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers” and requires the dependent claim to further limit the subject matter claimed.
The courts have repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’” or that any experimentation must be “reasonable”. See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 2023 USPQ2d 602 (2023); McRO, Inc. v. Bandai Namco Games Am. Inc., 959 F.3d 1091, 2020 USPQ2d 10550 (Fed. Cir. 2020); Wyeth & Cordis Corp. v. Abbott Laboratories, 720 F.3d 1380, 107 USPQ2d 1273 (Fed. Cir. 2013); Enzo Life Sciences, Inc. v. Roche Molecular Systems, Inc., 928 F.3d 1340 (Fed. Cir. 2019); and Idenix Pharmaceuticals LLC v. Gilead Sciences Inc., 941 F.3d 1149, 2019 USPQ2d 415844 (Fed. Cir. 2019). See also In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well-known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). All that is necessary is that one skilled in the art be able to practice the claimed invention, given the level of knowledge and skill in the art. Further, the scope of enablement must only bear a “reasonable correlation” to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970). See Amgen Inc. et al. v. Sanofi et al., 598 U.S. 594, 611, 2023 USPQ2d 602 (2023) (The Court stated that “[t]he more one claims, the more one must enable.)”.
With respect to the breadth of a claim, the relevant concern is whether the scope of enablement provided to one skilled in the art by the disclosure is commensurate with the scope of protection sought by the claims. The Federal Circuit, citing McRO, provided guidance on the application of enablement to genus claims, holding that “[a]lthough a specification does not need to describe how to make and use every possible variant of the claimed invention, when a range is claimed, there must be reasonable enablement of the scope of the range.” Sanofi-Aventisub, 987 F.3d at 1085 (internal quotations omitted). AK Steel Corp. v. Sollac, 344 F.3d 1234, 1244, 68 USPQ2d 1280, 1287 (Fed. Cir. 2003);In reMoore, 439 F.2d 1232, 1236, 169 USPQ 236, 239 (CCPA 1971). See also Plant Genetic Sys., N.V. v. DeKalb Genetics Corp., 315 F.3d 1335, 1339, 65 USPQ2d 1452, 1455 (Fed. Cir. 2003) (alleged “pioneer status” of invention irrelevant to enablement determination).
The propriety of a rejection based upon the scope of a claim relative to the scope of the enablement concerns (1) how broad the claim is with respect to the disclosure and (2) whether one skilled in the art could make and use the entire scope of the claimed invention without undue experimentation. A scope of enablement rejection must identify the claimed subject matter for which the specification is not enabling and explain why the specification is not enabling, applying the factors set forth in In re Wands, 858 F.2d 731, 737, 8 USPQ2d 1400, 1404 (Fed. Cir. 1998). See also MPEP §§ 2164.01(a) and 2164.04. The explanation should include any questions posed by the examiner which were not satisfactorily resolved and consequently raise doubt as to enablement.
An enabling disclosure may be set forth by specific example or broad terminology; the exact form of disclosure is not dispositive. In reMarzocchi, 439 F.2d 220, 223-24 169 USPQ 367, 370 (CCPA 1971). A rejection of a claim under 35 U.S.C. 112 as broader than the enabling disclosure is a 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph, enablement rejection and not a 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph, definiteness rejection. Claims are not rejected as broader than the enabling disclosure under 35 U.S.C. 112 for noninclusion of limitations dealing with factors which must be presumed to be within the level of ordinary skill in the art; the claims need not recite such factors where one of ordinary skill in the art to whom the specification and claims are directed would consider them obvious. In reSkrivan, 427 F.2d 801, 806, 166 USPQ 85, 88 (CCPA 1970). One does not look to the claims but to the specification to find out how to practice the claimed invention. W.L. Gore & Assoc., Inc. v. Garlock, Inc., 721 F.2d 1540, 1558, 220 USPQ 303, 316-17 (Fed. Cir. 1983); In re Johnson, 558 F.2d 1008, 1017, 194 USPQ 187, 195 (CCPA 1977). In In re Goffe, 542 F.2d 564, 567, 191 USPQ 429, 431 (CCPA 1976), the court stated:
[T]o provide effective incentives, claims must adequately protect inventors. To demand that the first to disclose shall limit his claims to what he has found will work or to materials which meet the guidelines specified for “preferred” materials in a process such as the one herein involved would not serve the constitutional purpose of promoting progress in the useful arts.
When analyzing the enabled scope of a claim, the teachings of the specification must not be ignored because claims are to be given their broadest reasonable interpretation that is consistent with the specification. “That claims are interpreted in light of the specification does not mean that everything in the specification must be read into the claims.” Raytheon Co. v. Roper Corp., 724 F.2d 951, 957, 220 USPQ 592, 597 (Fed. Cir. 1983), cert. denied, 469 U.S. 835 (1984).
The record must be clear so that the public will have notice as to the patentee’s scope of protection when the patent issues. If a reasonable interpretation of the claim is broader than the description in the specification, it is necessary for the examiner to make sure the full scope of the claim is enabled. Limitations and examples in the specification do not generally limit what is covered by the claims. See also United Therapeutics Corp. v Liquidia Techs., Inc., 74 F.4th 1360, 1370, 2023 USPQ2d 862 (Fed. Cir. 2023) (the court found that the claims directed to administration of treprostinil to treat all five types of pulmonary hypertension, which were construed to not require safety and efficacy, were adequately enabled by the specification which described administration, concentrations and dosages as well as an open label study despite potential safety concerns associated with one type of pulmonary hypotension. The record included evidence that “a skilled artisan would understand that the claimed administration of treprostinil would vasodilate the pulmonary vasculature, improve hemodynamics, and in this way for a single dose, treat a patient’s elevated pulmonary blood pressure independent of the type (i.e., group) of pulmonary hypertension patient.”).
The breadth of the claims was a factor considered in Amgen Inc. v. Chugai Pharm. Co., 927 F.2d 1200, 18 USPQ2d 1016 (Fed. Cir. 1991), cert. denied, 502 U.S. 856 (1991). In Amgen, the patent claims were directed to a purified DNA sequence encoding polypeptide analogs of the protein erythropoietin (EPO). The court stated that:
Amgen has not enabled preparation of DNA sequences sufficient to support its all-encompassing claims. . . . [D]espite extensive statements in the specification concerning all the analogs of the EPO gene that can be made, there is little enabling disclosure of particular analogs and how to make them. Details for preparing only a few EPO analog genes are disclosed. . . . This disclosure might well justify a generic claim encompassing these and similar analogs, but it represents inadequate support for Amgen’s desire to claim all EPO gene analogs. There may be many other genetic sequences that code for EPO-type products. Amgen has told how to make and use only a few of them and is therefore not entitled to claim all of them.
927 F.2d at 1213-14, 18 USPQ2d at 1027. However, when claims are directed to any purified and isolated DNA sequence encoding a specifically named protein where the protein has a specifically identified sequence, a rejection of the claims as broader than the enabling disclosure is generally not appropriate because one skilled in the art could readily determine any one of the claimed embodiments.
See also In re Wright, 999 F.2d 1557, 1562, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993) (The evidence did not show that a skilled artisan would have been able to carry out the steps required to practice the full scope of claims which encompass “any and all live, non-pathogenic vaccines, and processes for making such vaccines, which elicit immunoprotective activity in any animal toward any RNA virus.” (original emphasis)); In re Goodman, 11 F.3d 1046, 1052, 29 USPQ2d 2010, 2015 (Fed. Cir. 1993) (The specification did not enable the broad scope of the claims for producing mammalian peptides in plant cells because the specification contained only an example of producing gamma-interferon in a dicot species, and there was evidence that extensive experimentation would have been required for encoding mammalian peptide into a monocot plant at the time of filing); In re Fisher, 427 F.2d 833, 839, 166 USPQ 18, 24 (CCPA 1970) (Where applicant claimed a composition suitable for the treatment of arthritis having a potency of “at least” a particular value, the court held that the claim was not commensurate in scope with the enabling disclosure because the disclosure was not enabling for compositions having a slightly higher potency. Simply because applicant was the first to achieve a composition beyond a particular threshold potency did not justify or support a claim that would dominate every composition that exceeded that threshold value.); In re Vaeck, 947 F.2d 488, 495, 20 USPQ2d 1438, 1444 (Fed. Cir. 1991) (Given the relatively incomplete understanding in the biotechnological field involved, and the lack of a reasonable correlation between the narrow disclosure in the specification and the broad scope of protection sought in the claims, a rejection under 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph for lack of enablement was appropriate.); Pac. Biosciences of Cal., Inc. v. Oxford Nanopore Techs., Inc., 996 F.3d 1342, 1352, 2021 USPQ2d 519 (Fed. Cir. 2021) (The court found that undue experimentation was required to enable the full scope of the claims where there was ample evidence that relevant artisans would not know how to perform the claimed invention for more than a narrow range of the claimed scope of invention).
If a rejection is made based on the view that the enablement is not commensurate in scope with the claim, the examiner should identify the subject matter that is considered to be enabled.