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:
May. 07, 2002
Filed:
Nov. 08, 2000
Applicant:
Inventors:
Werner Bonrath, Freiburg, DE;
David Carl Burdick, Binningen, CH;
Peter Schirg, Badenweiler, DE;
Andreas Thum, Ulm, DE;
Assignee:
Roche Vitamins, Inc., Parsippany, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 6/100 ;
U.S. Cl.
CPC ...
B01D 6/100 ;
Abstract
The present invention is a process for concentrating aqueous epigallocatechin gallate (EGCG) solutions by feeding an aqueous EGCG solution to at least one membrane module under pressure to provide a permeate purge and a retentate return so that in the latter the concentration of EGCG is increased. The permeate purge and the retentate return are then collected.