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. 20, 2003
Filed:
Apr. 17, 2002
Applicant:
Inventors:
Giusepp Chiaradonna, Pisa, IT;
Frencesca Cicogna, Pisa, IT;
Giovanni Ingrosso, Pisa, IT;
Calogero Pinzino, Pisa, IT;
Valerio Del Duca, Naples, IT;
Stefano Scialla, Rome, IT;
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/00 ; C11D 3/26 ; C11D 3/39 ; C11D 3/395 ;
U.S. Cl.
CPC ...
C11D 1/00 ; C11D 3/26 ; C11D 3/39 ; C11D 3/395 ;
Abstract
A bleaching composition that contains a bleaching agent and a chromotrophic radical scavenging compound, and a test method for identifying the presence of free radicals is disclosed. Such compositions offer improved stability.