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:
Jul. 27, 1993
Filed:
Sep. 03, 1991
Applicant:
Inventors:
Carol S Greer, Lisle, IL (US);
Nancy P James, Lombard, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
D21H / ;
U.S. Cl.
CPC ...
1621643 ; 1621646 ; 1621682 ; 1621812 ; 162199 ; 162D / ;
Abstract
Pitch control agents comprising a combination of water-soluble zirconium compounds and cationic polymers are described. Ammonium zirconium carbonate is preferred in combination with poly DADMAC and/or with EPI-DMA polymers.
Greer, Carol. (1993). Synergistic pitch control process utilizing ammonium zirconium and (U.S. Patent No. 5230774). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5230774
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile