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. 22, 2007
Filed:
Mar. 28, 2003
Applicants:
Heinz-helmer Rasche, Burgdorf, DE;
Kirsten Wilbrand, Wunstorf, DE;
Kerstin Woltmann, Hannover, DE;
Inventors:
Assignee:
Solvay Pharmaceuticals GmbH, Hannover, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of separating cresol from mares' urine by pervaporation using pore-free polymeric silicone membranes in which starting urine solutions containing high-quality and -quantity conjugated estrogens with a reduced or substantially removed cresol content are provided which are advantageously suitable for obtaining natural mixtures of conjugated estrogens from pregnant mares' urine.