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:
Apr. 22, 2014
Filed:
Oct. 29, 2009
Applicants:
Joseph P. Hartley, Oxford, GB;
Robert G. Rowland, Woodbridge, CT (US);
Jie Cheng, Edison, NJ (US);
Jacob Emert, Brooklyn, NY (US);
Joseph Stieber, Prospect, CT (US);
Inventors:
Joseph P. Hartley, Oxford, GB;
Robert G. Rowland, Woodbridge, CT (US);
Jie Cheng, Edison, NJ (US);
Jacob Emert, Brooklyn, NY (US);
Joseph Stieber, Prospect, CT (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 133/12 (2006.01); C10M 141/10 (2006.01); C07C 211/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Tetra-alkylated phenylenediamine compounds useful as ashless TBN sources for lubricating oil compositions that are compatible with fluoroelastomeric engine seal materials and meet copper corrosion requirements, and lubricating oil compositions containing such phenylenediamine compounds.