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. 01, 1994
Filed:
Oct. 14, 1992
Applicant:
Inventors:
Urs N Riede, Frieburg, DE;
Bernhard Seubert, Edingen, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C08G / ;
U.S. Cl.
CPC ...
549200 ; 549348 ; 549354 ; 549399 ; 549400 ; 549406 ;
Abstract
A modified alkali metal or ammonium huminate being made from molecules of the group consisting of ##STR1## wherein R.sub.1, R.sub.3 and R.sub.4 are individually hydrogen or --OH, R.sub.2 is ##STR2## or --CH.sub.2 -- and R.sub.5 and R.sub.6 are individually selected from the group consisting of hydrogen, --OH and --OCH.sub.3, with the proviso that R.sub.4, R.sub.5 and R.sub.6 are not all hydrogen at the same time and their preparation and their medical uses.