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. 03, 1998
Filed:
May. 31, 1995
Applicant:
Inventor:
Helmut Reuscher, Emmerting, DE;
Assignee:
Consortium fur elektrochemische Industrie GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ; C07H / ;
U.S. Cl.
CPC ...
536127 ; 536103 ; 5361231 ; 536124 ; 514 58 ;
Abstract
A process for the purification of water-soluble cyclodextrin derivatives utilizes a reverse osmosis (RO) using at least one hydrophilic, asymmetric solution-diffusion membrane with a nominal molecular weight cut-off of 200-800 D.