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. 26, 2013
Filed:
Aug. 05, 2008
Applicants:
Marc-andré Poirier, Sarnia, CA;
Kathleen Hoard Tellier, Cherry Hill, NJ (US);
Stanley James Cartwright, Sarnia, CA;
Inventors:
Marc-André Poirier, Sarnia, CA;
Kathleen Hoard Tellier, Cherry Hill, NJ (US);
Stanley James Cartwright, Sarnia, CA;
Assignee:
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 171/00 (2006.01); C10M 169/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The resistance to oxidation and nitration of a gas engine oil is improved by the use of a combination of a hindered phenolic antioxidant and an (alkylated) phenyl-α-naphthylamine antioxidant. The additional use of an organo molybdenum compound further enhances the resistance to oxidation and nitration.