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, 2025
Filed:
Apr. 06, 2023
Applicant:
Afton Chemical Corporation, Richmond, VA (US);
Inventors:
Ashutosh Gupta, Henrico, VA (US);
Sheng Jiang, Glen Allen, VA (US);
Assignee:
Afton Chemical Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 139/04 (2006.01); B01D 53/94 (2006.01); C10M 169/04 (2006.01); F01N 3/021 (2006.01); C10N 40/25 (2006.01);
U.S. Cl.
CPC ...
C10M 139/04 (2013.01); B01D 53/9445 (2013.01); C10M 169/04 (2013.01); F01N 3/021 (2013.01); B01D 2255/908 (2013.01); B01D 2258/012 (2013.01); C10M 2203/003 (2013.01); C10M 2227/04 (2013.01); C10N 2040/255 (2020.05);
Abstract
The present disclosure provides for methods of improving the performance of a combustion engine after-treatment device, such as particulate filters and/or three-way catalyst systems, over its useful life by using a lubricating oil composition including one or more base oils of lubricating viscosity and an additive package with increased amounts of least one oil-soluble silicon-containing compound.