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:
May. 19, 2026
Filed:
Dec. 15, 2023
Applicant:
Afton Chemical Corporation, Richmond, VA (US);
Inventors:
Mariah Parker, Richmond, VA (US);
Jason Bell, Powhatan, VA (US);
Kenneth Garelick, Mechanicsville, VA (US);
Assignee:
Afton Chemical Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 137/02 (2006.01); C10M 133/16 (2006.01); C10N 20/02 (2006.01); C10N 30/00 (2006.01); C10N 40/25 (2006.01);
U.S. Cl.
CPC ...
C10M 137/02 (2013.01); C10M 133/16 (2013.01); C10M 2215/28 (2013.01); C10N 2020/02 (2013.01); C10N 2030/45 (2020.05); C10N 2040/25 (2013.01);
Abstract
This disclosure describes detergent-free and low-ash lubricating composition achieving piston cleanliness with one or more succinimide dispersants, one or more ashless antiwear additives, and one or more antioxidants when selected ratios of sulfur, phosphorus, and nitrogen are maintained.