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:
May. 12, 2009
Filed:
Mar. 31, 2005
Applicants:
William T. Sullivan, Brick, NJ (US);
Halou Oumar-mahamat, Princeton, NJ (US);
Ellen Bernice Brandes, Bound Brook, NJ (US);
Inventors:
William T. Sullivan, Brick, NJ (US);
Halou Oumar-Mahamat, Princeton, NJ (US);
Ellen Bernice Brandes, Bound Brook, NJ (US);
Assignee:
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 137/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to additive systems which contain a phosphorus to nitrogen ratio of ≧1.0. The phosphorus contribution is primarily from an acid phosphate species and the sulfur content is primarily from an antiwear agent. This lubricant composition has been found to provide exceptional protection to new gears or 'green gears', during the break-in phase.