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. 26, 1991
Filed:
Oct. 26, 1989
Applicant:
Inventors:
Bhupati R Bhattacharyya, Downers Grove, IL (US);
Michael R St John, Chicago, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526287 ; 5262922 ; 5263073 ;
Abstract
Hydrophobic cationic terpolymers of monomers of (a) acrylamide and/or methacrylamide, (b) dimethylaminoethylmethacrylate methyl chloride and/or dimethylaminoethylmethacrylate methyl sulfate, and (c) vinyl acetate; water-in-oil and oil-in-water emulsions containing said terpolymers; and dewatering of wastes and sludges utilizing said oil-in-water emulsions in which the terpolymers are present essentially in the aqueous phase.
Bhattacharyya, Bhupati. (1991). Hydrophobic cationic terpolymers from acrylamide, unsaturated quaternary (U.S. Patent No. 5068297). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5068297
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile