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. 03, 1985
Filed:
Mar. 07, 1985
Applicant:
Inventor:
Dionisio G Cuisia, Chicago, IL (US);
Assignee:
Dearborn Chemical Company, Lake Zurich, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ; C02F / ;
U.S. Cl.
CPC ...
210699 ; 210698 ; 252180 ;
Abstract
The accumulation of scale in an aqueous system is inhibited by the addition of a composition comprising a copolymer of maleic acid or anhydride and and styrene sulfonic acid, an organic phosphonate such as aminotri(methylene phosphonic acid) or hydroxyethylidene diphosphonic acid, and an aminocarboxylate chelating compound such as nitrilotriacetic acid or ethylenediamine tetraacetic acid, or their water soluble salts.
Cuisia, Dionisio. (1985). Composition and method for inhibiting scale (U.S. Patent No. 4556493). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4556493
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