The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2020
Filed:
Oct. 04, 2016
Applicant:
R.j. Reynolds Tobacco Company, Winston-Salem, NC (US);
Inventors:
Charles Stewart, Kingsport, TN (US);
Ercilia Hernandez Garcia, Clayton, NC (US);
Robert Owen Bussey, III, Winston-Salem, NC (US);
Assignee:
R.J. Reynolds Tobacco Company, Winston-Salem, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24B 15/30 (2006.01); C09B 61/00 (2006.01); D06P 1/34 (2006.01); D06P 3/14 (2006.01); D06P 3/60 (2006.01); D06P 5/15 (2006.01); D06P 1/00 (2006.01);
U.S. Cl.
CPC ...
A24B 15/307 (2013.01); C09B 61/00 (2013.01); D06P 1/0016 (2013.01); D06P 1/34 (2013.01); D06P 3/14 (2013.01); D06P 3/60 (2013.01); D06P 5/158 (2013.01);
Abstract
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.