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:
May. 14, 2013
Filed:
Aug. 05, 2010
Applicants:
Michael J. Unhoch, Tyrone, GA (US);
Patricia Brown, Newark, DE (US);
Inventors:
Michael J. Unhoch, Tyrone, GA (US);
Patricia Brown, Newark, DE (US);
Assignee:
Arch Chemicals, Inc., Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N 25/02 (2006.01); A01N 33/00 (2006.01); A01N 37/52 (2006.01); A01N 55/02 (2006.01); A01N 59/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to treatment of water, and more specifically to treatment of water using a stable formulation of polyhexamethylene biguanide (PHMB) and a liquid or solid zinc salt for the application and prevention algae in recirculated and stagnant water systems. The invention also encompasses methods of treating water that already contains PHMB.