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:
Dec. 03, 1991
Filed:
Jun. 07, 1990
Applicant:
Inventors:
Eldon C Lee, New Milford, CT (US);
Ernest K Gum, New Fairfield, CT (US);
Assignee:
Nestec S.A., Vevey, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A23F / ;
U.S. Cl.
CPC ...
426597 ; 426435 ;
Abstract
To obtain increased yields of soluble solids extracted from tea leaves and to improve the flavor of extracts obtained by acid hydrolysis of spent tea residue obtained from aqueous extraction of tea leaves, spent tea residue is hydrolyzed with an acid catalyst at a temperature of from 170.degree. C. to 250.degree. C. and at a pressure of from 120 psig to 600 psig for a period of from 5 seconds to 120 seconds to obtain an extract.