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:
Dec. 17, 2002
Filed:
Dec. 22, 2000
Applicant:
Inventors:
Antonio Gutierrez, Mercerville, NJ (US);
Mark G. Stevens, Metuchen, NJ (US);
Ricardo A. Bloch, Scotch Plains, NJ (US);
Robert A. Kleist, Bayonne, NJ (US);
Assignee:
Infineum International Ltd., Oxfordshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ; C07C / ;
U.S. Cl.
CPC ...
C10M / ; C10M / ; C07C / ;
Abstract
Low molecular weight Mannich base condensates of hydroxy aromatic compounds, an aldehyde; and an amine, wherein the combined number of substituent carbon atoms does not exceed 80. Such compounds are useful as soot dispersants in lubricating oils when used alone, or in combination with high molecular weight dispersants.