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:
Aug. 07, 1990
Filed:
May. 13, 1988
Applicant:
Inventors:
Bernhard Seubert, Edingen-Neckarhausen, DE;
Werner Fickert, Mannheim, DE;
Ulrich Spitaler, Freinsheim, DE;
Assignee:
Rutgerswerke AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07C / ;
U.S. Cl.
CPC ...
514 22 ; 514730 ; 568715 ; 210649 ; 536121 ;
Abstract
A process for the preparation of a low molecular weight alkali metal or ammonium huminate fraction comprising stirring an aqueous suspension of a humic containing material while adding an alkaline substance without exceeding a pH of 7, allowing the solids to settle from the suspension, centrifuging the solid free solution and subjecting the solution to ultrafiltration to obtain a low molecular weight alkali metal or ammonium huminate fraction and an improved method of healing wounds.