Tobacco-derived colorants and colored substrates

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United States of America Patent

PATENT NO 11666084
APP PUB NO 20200323256A1
SERIAL NO

16912257

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Abstract

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Methods for obtaining natural colorants from plant material (e.g., tobacco material) and for using such natural colorants to dye various substrates are provided. Natural colorants are obtained using particular enzymes and particular conditions (e.g., time, temperature, and pH profiles). Such colorants can be used to dye substrates, for example, using conventional dyeing techniques or using unique in situ methods.

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Patent Owner(s)

Patent OwnerAddress
R J REYNOLDS TOBACCO COMPANYWINSTON-SALEM NC 27101

International Classification(s)

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  • 2020 Application Filing Year
  • A24B Class
  • 317 Applications Filed
  • 139 Patents Issued To-Date
  • 43.85 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bussey,, III Robert Owen Winston-Salem, US 2 0
Garcia, Ercilia Hernandez Clayton, US 14 114
Stewart, Charles Kingsport, US 26 265

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Patent Citation Ranking

  • 0 Citation Count
  • A24B Class
  • 0 % this patent is cited more than
  • 2 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges87401 - 1005101520253035404550556065707580859095

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