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:
Sep. 25, 2007
Filed:
Oct. 12, 2004
Applicants:
Purvita Shah, Jersey City, NJ (US);
Michael J. Jurek, Oak Ridge, NJ (US);
Inventors:
Purvita Shah, Jersey City, NJ (US);
Michael J. Jurek, Oak Ridge, NJ (US);
Assignee:
ISP Investments Inc, Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/62 (2006.01); C11D 3/37 (2006.01);
U.S. Cl.
CPC ...
Abstract
A laundry detergent formulation includes a dirt suspending agent which is a blend of an anionic material, such as an anionic polymer, and a quaternary ammonium salt. This suspending agent prevents redeposition of dirt which is removed from clothing by a laundry detergent from redepositing onto cleaned clothes during the wash cycle, while allowing it to be removed completely during the rinse cycle.