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:
Mar. 28, 2006
Filed:
Oct. 22, 2002
Stephen Arrowsmith, Oxfordshire, GB;
Nancy Z. Diggs, Westfield, NJ (US);
Andrew J. D. Ritchie, Chatham, NJ (US);
Jorge O. Pain, Jersey City, NJ (US);
Stephen Arrowsmith, Oxfordshire, GB;
Nancy Z. Diggs, Westfield, NJ (US);
Andrew J. D. Ritchie, Chatham, NJ (US);
Jorge O. Pain, Jersey City, NJ (US);
Abstract
A lubricating oil composition having a total base number of at least about 8, comprising a major amount of oil of lubricating viscosity; an amount of one or more dihydrocarbyl dithiophosphate metal salt introducing into the lubricating oil composition no more than 0.06 wt. % of phosphorus; at least 1.2 wt. % of hindered phenol antioxidant; and boron, and/or a boron-containing compound or compounds in an amount providing the lubricating oil composition with at least 200 ppm by weight of boron, all weight percentages being based on the total weight of the lubricating oil composition.