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:
Feb. 18, 2025
Filed:
May. 11, 2020
Applicant:
Ecolab Usa Inc., Saint Paul, MN (US);
Inventors:
Kaitlin Lake, Saint Paul, MN (US);
Conor Smith, Saint Paul, MN (US);
Karl Heinbuch, Saint Paul, MN (US);
Matthew Paul Molinaro, Saint Paul, MN (US);
Assignee:
ECOLAB USA INC., Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L 2/28 (2006.01); G01N 21/80 (2006.01); G01N 31/22 (2006.01);
U.S. Cl.
CPC ...
A61L 2/28 (2013.01); G01N 21/80 (2013.01); G01N 31/226 (2013.01);
Abstract
The disclosure relates to pH sensitive color indicators which indicate the efficacy of a cleaning composition for antimicrobial activity by exhibiting a color change. In particular, the pH sensitive color indicators comprise a pH sensitive dye and a substrate, wherein the dye is bound to the substrate. In an aspect of the disclosure, the dye can be chemically bound, physically bound, coated on a substrate, or painted on a substrate.