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:
Oct. 29, 2024
Filed:
Sep. 23, 2020
Applicant:
Ecolab Usa Inc., Saint Paul, MN (US);
Inventors:
Carter M. Silvernail, Saint Paul, MN (US);
Kerrie E. Walters, Saint Paul, MN (US);
Assignee:
ECOLAB USA INC., Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/72 (2006.01); C11D 1/722 (2006.01); C11D 3/00 (2006.01); C11D 3/04 (2006.01); C11D 3/08 (2006.01); C11D 3/10 (2006.01); C11D 3/33 (2006.01); C11D 3/36 (2006.01); C11D 3/37 (2006.01); C11D 3/40 (2006.01); C11D 17/00 (2006.01); C11D 17/06 (2006.01);
U.S. Cl.
CPC ...
C11D 3/10 (2013.01); C11D 1/72 (2013.01); C11D 1/722 (2013.01); C11D 3/0047 (2013.01); C11D 3/04 (2013.01); C11D 3/044 (2013.01); C11D 3/08 (2013.01); C11D 3/33 (2013.01); C11D 3/361 (2013.01); C11D 3/3757 (2013.01); C11D 3/3761 (2013.01); C11D 3/3765 (2013.01); C11D 3/40 (2013.01); C11D 17/0008 (2013.01); C11D 17/06 (2013.01); C11D 2111/18 (2024.01);
Abstract
Color changing alkaline warewash detergents containing a pH sensitive indicator are disclosed. In particular, the warewash detergents can change color in alkaline environments. As the soil level increases or detergent decreases, a color change indicates that the warewash machine needs to be drained and refilled. Methods of employing the color changing alkaline detergent compositions are also disclosed.