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:
Apr. 01, 2003
Filed:
Dec. 07, 2000
Applicant:
Inventor:
Kenneth G. Gatzke, Lake Elmo, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/20 ; C11D 3/26 ; C11D 3/43 ; C11D 3/44 ; C11D 7/50 ;
U.S. Cl.
CPC ...
C11D 3/20 ; C11D 3/26 ; C11D 3/43 ; C11D 3/44 ; C11D 7/50 ;
Abstract
Engine cleaner compositions are reported comprising a single phase solution comprising a polar solvent having a Hildebrand solubility parameter of about 10 cal cm or greater; a non-polar solvent, immiscible with the polar solvent, having a Hildebrand solubility parameter of about 10 cal cm or less; and a fugitive cosolvent having a higher evaporation rate than the polar solvent and the non-polar solvent. The engine cleaner compositions are suitable for cleaning internal combustion engines.