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:
Aug. 25, 2015
Filed:
Oct. 05, 2011
Applicants:
Stephen J. Cook, Belper, GB;
Alexandra Mayhew, Wirksworth, GB;
Mark C. Davies, Belper, GB;
Jolanta Z. Adamczewska, Derby, GB;
Inventors:
Stephen J. Cook, Belper, GB;
Alexandra Mayhew, Wirksworth, GB;
Mark C. Davies, Belper, GB;
Jolanta Z. Adamczewska, Derby, GB;
Assignee:
The Lubrizol Corporation, Wickliffe, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M 11/00 (2006.01); C10M 165/00 (2006.01);
U.S. Cl.
CPC ...
F01M 11/00 (2013.01); C10M 165/00 (2013.01); C10M 2203/1006 (2013.01); C10M 2205/026 (2013.01); C10M 2205/0285 (2013.01); C10M 2207/028 (2013.01); C10M 2219/046 (2013.01); C10N 2220/021 (2013.01); C10N 2230/04 (2013.01); C10N 2230/30 (2013.01); C10N 2230/42 (2013.01); C10N 2230/43 (2013.01); C10N 2230/45 (2013.01); C10N 2240/102 (2013.01); C10N 2240/104 (2013.01);
Abstract
A lubricating composition containing an oil of lubricating viscosity, a high molecular weight polyolefin that is at least substantially free of ethylene-derived monomer units, and an overbased metal containing detergent, is capable of reducing intake valve deposits in a direct injection engine.