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:
Oct. 21, 2014
Filed:
Aug. 24, 2011
Applicants:
Ian Macpherson, Richmond, VA (US);
Donald Robert Bell, Midlothian, VA (US);
Akhilesh Duggal, Midlothian, VA (US);
Inventors:
Ian MacPherson, Richmond, VA (US);
Donald Robert Bell, Midlothian, VA (US);
Akhilesh Duggal, Midlothian, VA (US);
Assignee:
Afton Chemical Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 159/12 (2006.01); C10M 161/00 (2006.01);
U.S. Cl.
CPC ...
C10M 161/00 (2013.01); C10M 159/12 (2013.01); C10M 2203/1025 (2013.01); C10M 2203/1085 (2013.01); C10M 2205/028 (2013.01); C10M 2217/06 (2013.01); C10M 2219/08 (2013.01); C10M 2219/082 (2013.01); C10M 2219/083 (2013.01); C10M 2219/086 (2013.01); C10N 2230/02 (2013.01); C10N 2230/04 (2013.01); C10N 2230/08 (2013.01); C10N 2230/10 (2013.01); C10N 2230/12 (2013.01); C10N 2230/68 (2013.01); C10N 2240/04 (2013.01);
Abstract
A gear oil composition, a method for operating an automotive gear, and a method for improving performance of a gear oil that includes a) a major amount of a base oil having a lubricating viscosity; b) a polysulfide extreme pressure agent; and c) a reaction product of an acylated copolymer and a polyamine.