Regulatory Text
37 C.F.R. § 41.158 — Expert testimony; tests and data.
§ 41.158 Expert testimony; tests and data. (a) Expert testimony that does not disclose the underlying facts or data on which the opinion is based is entitled to little or no weight. Testimony on United States patent law will not be admitted. (b) If a party relies on a technical test or data from such a test, the party must provide an affidavit explaining: (1) Why the test or data is being used, (2) How the test was performed and the data was generated, (3) How the data is used to determine a value, (4) How the test is regarded in the relevant art, and (5) Any other information necessary for the Board to evaluate the test and data.
Source: ecfr.gov · govinfo.gov — public domain
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Root-LD Entity Data
◈ Machine-Readable Provenance Record
Root-LD v1.0 · boisestandard.org
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BS-CFR37-SEC-5F5AFC
Entity Class
REGULATION / FEDERAL-CFR-SECTION
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boisestandard.org
Citation
37 C.F.R. § 41.158
Corpus
CFR — Code of Federal Regulations
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✓ ACTIVE
Source
PRIMARY-SOURCE
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✓ TRUE
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d5aeccdf53a738aa...
Semantic Edges
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The regulatory text of 37 C.F.R. § 41.158 is reproduced from the official Code of Federal Regulations as published by the Office of the Federal Register and the National Archives and Records Administration.
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Title 37 — Patents, Trademarks, and Copyrights
37 C.F.R. § 1.137 C.F.R. § 1.237 C.F.R. § 1.337 C.F.R. § 1.437 C.F.R. § 1.537 C.F.R. § 1.637 C.F.R. § 1.737 C.F.R. § 1.837 C.F.R. § 1.937 C.F.R. § 1.1037 C.F.R. § 1.1137 C.F.R. § 1.1237 C.F.R. § 1.1337 C.F.R. § 1.1437 C.F.R. § 1.1537 C.F.R. § 1.1637 C.F.R. § 1.1737 C.F.R. § 1.1837 C.F.R. § 1.1937 C.F.R. § 1.2037 C.F.R. § 1.2137 C.F.R. § 1.2237 C.F.R. § 1.2337 C.F.R. § 1.2437 C.F.R. § 1.2537 C.F.R. § 1.2637 C.F.R. § 1.2737 C.F.R. § 1.2837 C.F.R. § 1.2937 C.F.R. § 1.31
37 C.F.R. — public domain
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