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:
Nov. 24, 2020
Filed:
May. 10, 2019
Chevron Oronite Company Llc, San Ramon, CA (US);
Chevron U.s.a. Inc., San Ramon, CA (US);
Ian G. Elliott, Vacaville, CA (US);
Amir Gamal Maria, Alameda, CA (US);
Richard Eugene Cherpeck, Cotati, CA (US);
Theresa Liang Gunawan, Alameda, CA (US);
Andrew M. Thomas, El Sobrante, CA (US);
CHEVRON ORONITE COMPANY LLC, San Ramon, CA (US);
CHEVRON U.S.A. INC., San Ramon, CA (US);
Abstract
Disclosed is a lubricating engine oil composition for a direct injected, boosted, spark ignited internal combustion engine comprising from about 25 to about 3000 ppm of metal from at least one manganese-containing compound, based on the total weight of the lubricating oil. Also disclosed is a method for preventing or reducing low speed pre-ignition in an engine lubricated with said lubricating engine oil composition.