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. 06, 2011
Filed:
Jun. 29, 2009
Bernard Kinker, Kintersville, PA (US);
Matthias Fischer, Worms, DE;
Martin Bollinger, N. Wales, PA (US);
Robert Cybert, Roosevelt, NJ (US);
Ernst Bielmeier, Griesheim, DE;
David Cooper, Quakertown, PA (US);
Angelika Fischer, Dreieich, DE;
Melanie Croessmann, Ober-Ramstadt, DE;
Bernard Kinker, Kintersville, PA (US);
Matthias Fischer, Worms, DE;
Martin Bollinger, N. Wales, PA (US);
Robert Cybert, Roosevelt, NJ (US);
Ernst Bielmeier, Griesheim, DE;
David Cooper, Quakertown, PA (US);
Angelika Fischer, Dreieich, DE;
Melanie Croessmann, Ober-Ramstadt, DE;
Evonik Rohmax Additives GmbH, Darmstadt, DE;
Abstract
The present invention is directed to a lubricating oil composition, a diesel engine comprising a lubricating oil composition, and a method of lubricating a diesel engine provided with an exhaust gas recirculation system, comprising lubricating said engine with a lubricating oil composition comprising an oil of lubricating viscosity, and a polymeric N-dispersant booster comprising monomer units of: