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:
Dec. 17, 1991
Filed:
May. 25, 1990
Applicant:
Inventors:
Walter Denzinger, Speyer, DE;
Heinrich Hartmann, Limburgerhof, DE;
Ulrich Goeckel, Boehl-Iggelheim, DE;
Felix Richter, Bruehl, DE;
Hans-Juergen Raubenheimer, Ketsch, DE;
Ekhard Winkler, Mutterstadt, DE;
Assignee:
BASF Corporation, Parsippany, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F / ; C08F / ;
U.S. Cl.
CPC ...
210698 ; 526227 ;
Abstract
Water-soluble copolymers of maleic acid useful as water treatment agents are prepared by copolymerizing