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. 25, 2022
Filed:
Jun. 04, 2021
Applicant:
Afton Chemical Corporation, Richmond, VA (US);
Inventors:
Lisa Dingwell, Midlothian, VA (US);
Michael Rosana, Ashland, VA (US);
Assignee:
Afton Chemical Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 155/04 (2006.01); C10M 157/10 (2006.01); C10M 133/12 (2006.01); C10M 129/10 (2006.01); C10M 137/10 (2006.01); C10M 135/10 (2006.01); C10M 141/10 (2006.01); C10M 167/00 (2006.01); C10M 149/02 (2006.01); C10N 40/25 (2006.01); C10N 30/04 (2006.01); C10N 30/10 (2006.01);
U.S. Cl.
CPC ...
C10M 169/048 (2013.01); C10M 129/10 (2013.01); C10M 133/12 (2013.01); C10M 135/10 (2013.01); C10M 137/10 (2013.01); C10M 141/10 (2013.01); C10M 149/02 (2013.01); C10M 155/04 (2013.01); C10M 157/10 (2013.01); C10M 167/00 (2013.01); C10M 2203/003 (2013.01); C10M 2207/023 (2013.01); C10M 2215/26 (2013.01); C10M 2217/06 (2013.01); C10M 2219/044 (2013.01); C10M 2223/045 (2013.01); C10M 2229/00 (2013.01); C10N 2030/04 (2013.01); C10N 2030/10 (2013.01); C10N 2040/25 (2013.01);
Abstract
The present disclosure describes lubricant compositions effective to minimize average engine sludge through selection of lubricant additives that control the total nitrogen as well as the origin of the nitrogen in the lubricant composition. In aspects, the lubricant compositions herein include at least a base oil of lubricating viscosity, a dispersant system, and at least one antioxidant.
Dingwell, Lisa. (2022). Lubricant composition for reduced engine sludge (U.S. Patent No. 11479736). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11479736
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile