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:
Jun. 24, 2014
Filed:
Dec. 20, 2006
Applicants:
Matthew D. Irving, Wantage, GB;
Stephen Arrowsmith, Didcot, GB;
Inventors:
Matthew D. Irving, Wantage, GB;
Stephen Arrowsmith, Didcot, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 159/20 (2006.01); C10M 159/22 (2006.01); C10M 159/24 (2006.01); C10M 167/00 (2006.01);
U.S. Cl.
CPC ...
C10M 159/20 (2013.01); C10M 159/22 (2013.01); C10M 159/24 (2013.01); C10M 167/00 (2013.01); C10M 2207/027 (2013.01); C10M 2207/028 (2013.01); C10M 2219/046 (2013.01); C10M 2219/088 (2013.01); C10M 2219/089 (2013.01); C10M 2223/045 (2013.01); C10N 2210/02 (2013.01); C10N 2210/06 (2013.01); C10N 2230/04 (2013.01); C10N 2230/42 (2013.01); C10N 2230/43 (2013.01); C10N 2230/45 (2013.01); C10N 2240/102 (2013.01);
Abstract
A lubricating oil composition for internal combustion engines, particularly heavy duty diesel (HDD) engines, having reduced phosphorus, sulfur and sulfated ash contents that provide excellent piston cleanliness performance and contain an amount of phenate detergent that introduces a relatively large amount of phenate soap into the lubricating oil composition.