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:
Mar. 19, 2013
Filed:
Dec. 23, 2008
Applicants:
Robb Richard Gardner, Cincinnati, OH (US);
Allison Lynn Gerdes, Mason, OH (US);
Jeffrey Anderson Seeley, Cincinnati, OH (US);
Inventors:
Robb Richard Gardner, Cincinnati, OH (US);
Allison Lynn Gerdes, Mason, OH (US);
Jeffrey Anderson Seeley, Cincinnati, OH (US);
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/30 (2006.01); C11D 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Detergent compositions containing catechols, such as Tiron (1,2-dihydroxybenzene-3,5-disulfonic acid), which do not have or do not develop the reddish color associated with the catechol/ferric iron chelate are disclosed. Methods for reducing the intensity of red color in a Tiron (1,2-dihydroxybenzene-3,5-disulfonic acid) containing detergent composition are also disclosed.