MPEP § 1504.01(d) — Simulation (Annotated Rules)

§1504.01(d) Simulation

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

This page consolidates and annotates all enforceable requirements under MPEP § 1504.01(d), 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.

Simulation

This section addresses Simulation. Primary authority: 35 U.S.C. 171 and 35 U.S.C. 102. Contains: 3 guidance statements and 1 other statement.

Key Rules

Topic

Design Patent Practice

7 rules
StatutoryInformativeAlways
[mpep-1504-01-d-52fb5db9ecb5d9785088beaf]
Original Design Required for Patentability
Note:
A design must be original to be patentable, meaning it cannot simulate an existing object or person.

35 U.S.C. 171 requires that a design to be patentable be “original.” Clearly, a design which simulates an existing object or person is not original as required by the statute. The Supreme Court in Gorham Manufacturing Co. v. White, 81 U.S. (14 Wall) 511 (1871), described a design as “the thing invented or produced, for which a patent is given.” “The arbitrary chance selection of a form of a now well known and celebrated building, to be applied to toys, inkstands, paper – weights, etc. does not, in my opinion, evince the slightest exercise of invention….” Bennage v. Phillippi, 1876 C.D. 135, 9 O.G. 1159 (Comm’r Pat. 1876). This logic was reinforced by the CCPA in In re Smith, 77 F.2d 513, 513, 25 USPQ 359, 360, 1935 C.D. 565, 566 (CCPA 1935), which stated that “to take a natural form, in a natural pose,… does not constitute invention” when affirming the rejection of a claim to a baby doll. This premise was also applied in In re Smith, 77 F.2d 514, 515, 25 USPQ 360, 362, 1935 C.D. 573, 575 (CCPA 1935), which held that a “baby doll simulating the natural features…of a baby without embodying some grotesqueness or departure from the natural form” is not patentable.

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StatutoryRequiredAlways
[mpep-1504-01-d-32dbb7e73135c4de5973d9c3]
Design Must Not Simulate Existing Objects
Note:
A design patent must not simply mimic the appearance of an existing object or person to be considered original.

35 U.S.C. 171 requires that a design to be patentable be “original.” Clearly, a design which simulates an existing object or person is not original as required by the statute. The Supreme Court in Gorham Manufacturing Co. v. White, 81 U.S. (14 Wall) 511 (1871), described a design as “the thing invented or produced, for which a patent is given.” “The arbitrary chance selection of a form of a now well known and celebrated building, to be applied to toys, inkstands, paper – weights, etc. does not, in my opinion, evince the slightest exercise of invention….” Bennage v. Phillippi, 1876 C.D. 135, 9 O.G. 1159 (Comm’r Pat. 1876). This logic was reinforced by the CCPA in In re Smith, 77 F.2d 513, 513, 25 USPQ 359, 360, 1935 C.D. 565, 566 (CCPA 1935), which stated that “to take a natural form, in a natural pose,… does not constitute invention” when affirming the rejection of a claim to a baby doll. This premise was also applied in In re Smith, 77 F.2d 514, 515, 25 USPQ 360, 362, 1935 C.D. 573, 575 (CCPA 1935), which held that a “baby doll simulating the natural features…of a baby without embodying some grotesqueness or departure from the natural form” is not patentable.

Jump to MPEP SourceDesign Patent Practice
StatutoryInformativeAlways
[mpep-1504-01-d-a6e4f4a215f5aca363c16604]
Design Must Be Original
Note:
A design for a patent must be original and not simulate an existing object or person.

35 U.S.C. 171 requires that a design to be patentable be “original.” Clearly, a design which simulates an existing object or person is not original as required by the statute. The Supreme Court in Gorham Manufacturing Co. v. White, 81 U.S. (14 Wall) 511 (1871), described a design as “the thing invented or produced, for which a patent is given.” “The arbitrary chance selection of a form of a now well known and celebrated building, to be applied to toys, inkstands, paper – weights, etc. does not, in my opinion, evince the slightest exercise of invention….” Bennage v. Phillippi, 1876 C.D. 135, 9 O.G. 1159 (Comm’r Pat. 1876). This logic was reinforced by the CCPA in In re Smith, 77 F.2d 513, 513, 25 USPQ 359, 360, 1935 C.D. 565, 566 (CCPA 1935), which stated that “to take a natural form, in a natural pose,… does not constitute invention” when affirming the rejection of a claim to a baby doll. This premise was also applied in In re Smith, 77 F.2d 514, 515, 25 USPQ 360, 362, 1935 C.D. 573, 575 (CCPA 1935), which held that a “baby doll simulating the natural features…of a baby without embodying some grotesqueness or departure from the natural form” is not patentable.

Jump to MPEP SourceDesign Patent Practice
StatutoryInformativeAlways
[mpep-1504-01-d-da990ae3ad8c4b929c8ac790]
Simulating Existing Objects Not Original Design
Note:
A design that mimics an existing object is not considered original and thus not patentable under design patents.

35 U.S.C. 171 requires that a design to be patentable be “original.” Clearly, a design which simulates an existing object or person is not original as required by the statute. The Supreme Court in Gorham Manufacturing Co. v. White, 81 U.S. (14 Wall) 511 (1871), described a design as “the thing invented or produced, for which a patent is given.” “The arbitrary chance selection of a form of a now well known and celebrated building, to be applied to toys, inkstands, paper – weights, etc. does not, in my opinion, evince the slightest exercise of invention….” Bennage v. Phillippi, 1876 C.D. 135, 9 O.G. 1159 (Comm’r Pat. 1876). This logic was reinforced by the CCPA in In re Smith, 77 F.2d 513, 513, 25 USPQ 359, 360, 1935 C.D. 565, 566 (CCPA 1935), which stated that “to take a natural form, in a natural pose,… does not constitute invention” when affirming the rejection of a claim to a baby doll. This premise was also applied in In re Smith, 77 F.2d 514, 515, 25 USPQ 360, 362, 1935 C.D. 573, 575 (CCPA 1935), which held that a “baby doll simulating the natural features…of a baby without embodying some grotesqueness or departure from the natural form” is not patentable.

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StatutoryInformativeAlways
[mpep-1504-01-d-32530c029a3ebb024d169c48]
Design Patent for Natural Form Not Allowed
Note:
A design patent cannot be granted for a baby doll that simply mimics the natural form of a baby without any inventive features.

35 U.S.C. 171 requires that a design to be patentable be “original.” Clearly, a design which simulates an existing object or person is not original as required by the statute. The Supreme Court in Gorham Manufacturing Co. v. White, 81 U.S. (14 Wall) 511 (1871), described a design as “the thing invented or produced, for which a patent is given.” “The arbitrary chance selection of a form of a now well known and celebrated building, to be applied to toys, inkstands, paper – weights, etc. does not, in my opinion, evince the slightest exercise of invention….” Bennage v. Phillippi, 1876 C.D. 135, 9 O.G. 1159 (Comm’r Pat. 1876). This logic was reinforced by the CCPA in In re Smith, 77 F.2d 513, 513, 25 USPQ 359, 360, 1935 C.D. 565, 566 (CCPA 1935), which stated that “to take a natural form, in a natural pose,… does not constitute invention” when affirming the rejection of a claim to a baby doll. This premise was also applied in In re Smith, 77 F.2d 514, 515, 25 USPQ 360, 362, 1935 C.D. 573, 575 (CCPA 1935), which held that a “baby doll simulating the natural features…of a baby without embodying some grotesqueness or departure from the natural form” is not patentable.

Jump to MPEP SourceDesign Patent Practice
StatutoryInformativeAlways
[mpep-1504-01-d-fdd63baaf21dd85a53ac1d79]
Baby Doll Design Not Patentable Without Grotesqueness
Note:
A baby doll design must embody some grotesqueness or departure from the natural form to be patentable under design patent law.

35 U.S.C. 171 requires that a design to be patentable be “original.” Clearly, a design which simulates an existing object or person is not original as required by the statute. The Supreme Court in Gorham Manufacturing Co. v. White, 81 U.S. (14 Wall) 511 (1871), described a design as “the thing invented or produced, for which a patent is given.” “The arbitrary chance selection of a form of a now well known and celebrated building, to be applied to toys, inkstands, paper – weights, etc. does not, in my opinion, evince the slightest exercise of invention….” Bennage v. Phillippi, 1876 C.D. 135, 9 O.G. 1159 (Comm’r Pat. 1876). This logic was reinforced by the CCPA in In re Smith, 77 F.2d 513, 513, 25 USPQ 359, 360, 1935 C.D. 565, 566 (CCPA 1935), which stated that “to take a natural form, in a natural pose,… does not constitute invention” when affirming the rejection of a claim to a baby doll. This premise was also applied in In re Smith, 77 F.2d 514, 515, 25 USPQ 360, 362, 1935 C.D. 573, 575 (CCPA 1935), which held that a “baby doll simulating the natural features…of a baby without embodying some grotesqueness or departure from the natural form” is not patentable.

Jump to MPEP SourceDesign Patent Practice
StatutoryRecommendedAlways
[mpep-1504-01-d-a39c27d5af7d62d6f0d3c350]
Claim for Simulated Design Must Be Original
Note:
A claim directed to a design that simulates a well-known object or person must be original and cannot be rejected under 35 U.S.C. 171 if it lacks originality.

Therefore, a claim directed to a design for an article which simulates a well known or naturally occurring object or person should be rejected under 35 U.S.C. 171 as nonstatutory subject matter in that the claimed design lacks originality. Form paragraph 15.08.02 should be used. However, when a claim is rejected on this basis, examiners should provide evidence, if possible, of the appearance of the object, person or naturally occurring form in question so that a comparison may be made to the claimed design. Form paragraph 15.08.03 should be used. It would also be appropriate, if the examiner has prior art which anticipates or renders the claim obvious, to reject the claim under either 35 U.S.C. 102 or 103(a) concurrently. See In re Wise, 340 F.2d 982, 144 USPQ 354 (CCPA 1965).

Jump to MPEP SourceDesign Patent PracticeDesign NonobviousnessDesign Novelty
Topic

Design Nonobviousness

3 rules
StatutoryRecommendedAlways
[mpep-1504-01-d-7bf31be94db3c15082055f47]
Examiner Must Provide Appearance Evidence for Rejected Claims
Note:
When a design claim is rejected, examiners must provide evidence of the object's appearance to allow comparison with the claimed design.

Therefore, a claim directed to a design for an article which simulates a well known or naturally occurring object or person should be rejected under 35 U.S.C. 171 as nonstatutory subject matter in that the claimed design lacks originality. Form paragraph 15.08.02 should be used. However, when a claim is rejected on this basis, examiners should provide evidence, if possible, of the appearance of the object, person or naturally occurring form in question so that a comparison may be made to the claimed design. Form paragraph 15.08.03 should be used. It would also be appropriate, if the examiner has prior art which anticipates or renders the claim obvious, to reject the claim under either 35 U.S.C. 102 or 103(a) concurrently. See In re Wise, 340 F.2d 982, 144 USPQ 354 (CCPA 1965).

Jump to MPEP SourceDesign NonobviousnessDesign NoveltyDesign Patent Practice
StatutoryRecommendedAlways
[mpep-1504-01-d-1682dbc10f4eb5fed75626b5]
Claim Rejection Using Prior Art
Note:
Examiners should reject claims under 35 U.S.C. 102 or 103(a) if prior art anticipates or renders the claim obvious, using Form paragraph 15.08.03.

Therefore, a claim directed to a design for an article which simulates a well known or naturally occurring object or person should be rejected under 35 U.S.C. 171 as nonstatutory subject matter in that the claimed design lacks originality. Form paragraph 15.08.02 should be used. However, when a claim is rejected on this basis, examiners should provide evidence, if possible, of the appearance of the object, person or naturally occurring form in question so that a comparison may be made to the claimed design. Form paragraph 15.08.03 should be used. It would also be appropriate, if the examiner has prior art which anticipates or renders the claim obvious, to reject the claim under either 35 U.S.C. 102 or 103(a) concurrently. See In re Wise, 340 F.2d 982, 144 USPQ 354 (CCPA 1965).

Jump to MPEP SourceDesign NonobviousnessDesign NoveltyNovelty / Prior Art
StatutoryInformativeAlways
[mpep-1504-01-d-bf8ec42da6c4ed8b04e45a77]
Claim for Simulated Design Should Be Rejected
Note:
A claim directed to a design simulating a known object or person must be rejected as nonstatutory subject matter unless evidence of the original appearance is provided.

Therefore, a claim directed to a design for an article which simulates a well known or naturally occurring object or person should be rejected under 35 U.S.C. 171 as nonstatutory subject matter in that the claimed design lacks originality. Form paragraph 15.08.02 should be used. However, when a claim is rejected on this basis, examiners should provide evidence, if possible, of the appearance of the object, person or naturally occurring form in question so that a comparison may be made to the claimed design. Form paragraph 15.08.03 should be used. It would also be appropriate, if the examiner has prior art which anticipates or renders the claim obvious, to reject the claim under either 35 U.S.C. 102 or 103(a) concurrently. See In re Wise, 340 F.2d 982, 144 USPQ 354 (CCPA 1965).

Jump to MPEP SourceDesign NonobviousnessDesign NoveltyDesign Patent Practice

Citations

Primary topicCitation
Design Nonobviousness
Design Patent Practice
35 U.S.C. § 102
Design Nonobviousness
Design Patent Practice
35 U.S.C. § 171
Design Nonobviousness
Design Patent Practice
Form Paragraph § 15.08.02
Design Nonobviousness
Design Patent Practice
Form Paragraph § 15.08.03
Design Nonobviousness
Design Patent Practice
In re Wise, 340 F.2d 982, 144 USPQ 354 (CCPA 1965)

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