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:
Nov. 08, 2016
Filed:
Sep. 02, 2011
Applicant:
Charles Duval, Eyguieres, FR;
Inventor:
Charles Duval, Eyguieres, FR;
Assignee:
NATUREX, S.A., Avignon, FR;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H 15/24 (2006.01); A61K 36/23 (2006.01);
U.S. Cl.
CPC ...
C07H 15/24 (2013.01); A61K 36/23 (2013.01); A61K 2236/331 (2013.01); A61K 2236/39 (2013.01);
Abstract
The invention relates to a method for preparing a refined extract ofcomprising a mixture of madecassoside and terminoloside. The method comprises: passage over adsorbent resin; elution with an eluent comprising at least 30 wt. % of an alcoholic solvent; and a recrystallization step using a mixture of solvents, comprising water and an alcoholic solvent.