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. 27, 1990
Filed:
Apr. 04, 1988
Applicant:
Inventors:
Richard Baur, Mutterstadt, DE;
Felix Richter, Bruehl, DE;
Stefan Birnbach, Ludwigshafen, DE;
Rolf Fikentscher, Ludwigshafen, DE;
Alfred Oftring, Ludwigshafen, DE;
Ekhard Winkler, Mutterstadt, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
558372 ; 558441 ; 558445 ; 562561 ; 562568 ;
Abstract
Serine-N,N-diacetic acid and derivatives thereof are prepared in various ways and used in particular as complexing agents, bleaching agent stabilizers and builders in detergents.