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. 29, 2009
Filed:
Oct. 13, 2008
Kim R. Smith, Woodbury, MN (US);
Keith E. Olson, Apple Valley, MN (US);
Howie Kestell, Burnsville, MN (US);
Michael J. Bartelme, Eden Prairie, MN (US);
Steven E. Lentsch, St. Paul, MN (US);
Victor F. Man, St. Paul, MN (US);
Burton M. Baum, Laguna Woods, CA (US);
Terence P. Everson, Eagan, MN (US);
Kim R. Smith, Woodbury, MN (US);
Keith E. Olson, Apple Valley, MN (US);
Howie Kestell, Burnsville, MN (US);
Michael J. Bartelme, Eden Prairie, MN (US);
Steven E. Lentsch, St. Paul, MN (US);
Victor F. Man, St. Paul, MN (US);
Burton M. Baum, Laguna Woods, CA (US);
Terence P. Everson, Eagan, MN (US);
Ecolab Inc., St. Paul, MN (US);
Abstract
A warewashing detergent composition is provided according to the invention. The warewashing detergent composition includes a cleaning agent, an alkaline source, and a corrosion inhibitor. The cleaning agent comprises a detersive amount of a surfactant. The alkaline source is provided in an amount effective to provide a use composition having a pH of at least about 8. The corrosion inhibitor includes a source of aluminum ion and a source of zinc ion. The relative amounts of the source of zinc ion and the source of aluminum ion can be controlled to reduce visible filming when the warewashing detergent composition is used in the presence of hard water. Methods for using and manufacturing a warewashing detergent composition are provided.