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:
Feb. 10, 2015
Filed:
Aug. 11, 2010
Morey N. Najman, Midland, MI (US);
Mark R. Baker, Lyndhurst, OH (US);
Vera M. Marsic, Mentor, OH (US);
Morey N. Najman, Midland, MI (US);
Mark R. Baker, Lyndhurst, OH (US);
Vera M. Marsic, Mentor, OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
The present invention relates to a method for lubricating a driveline device comprising supplying to the driveline device a lubricating composition comprising an oil of lubricating viscosity and an antiwear package wherein the antiwear package comprises (a) a derivative of a hydroxycarboxylic acid, and (b) a phosphorus compound selected from the group consisting of an amine salt of a phosphate hydrocarbon ester, a phosphite having at least one hydrocarbyl group with 4 or more carbon atoms, and mixtures thereof.