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. 08, 1988
Filed:
Sep. 08, 1986
Applicant:
Inventors:
Elaine S Yamaguchi, El Cerrito, CA (US);
Thomas V Liston, San Rafael, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 / ; 556 25 ; 558 86 ;
Abstract
Metal salts of alkyl catechol esters of dithiophosphoric acid suitable as additives in oil compositions are disclosed. Oil compositions containing the salts of such esters show improved extreme pressure/anti-wear and anti-oxidant properties.