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.

Date of Patent:
Sep. 23, 1986

Filed:

Jun. 27, 1984
Applicant:
Inventor:

Yukihiko Hara, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549399 ;
Abstract

Process for production of tea catechins selected from (-) epicatechin, (-) epigallocatechin, (-) epicatechin gallate and (-) epigallocatechin gallate comprising extracting tea leaves with hot water or an aqueous solution of methanol, ethanol or acetone, washing the extract containing solution with chloroform, transferring the washed solution into an organic solvent, removing the solution and passing the resulting solution through a reversed phase column in the presence of an eluting solution. Tea catechins and methods of using the same are also disclosed.


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Hara, Yukihiko. (1986). Process for the production of tea catechins (U.S. Patent No. 4613672). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4613672

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