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:
Apr. 21, 2026
Filed:
May. 23, 2023
Applicant:
The Lubrizol Corporation, Wickliffe, OH (US);
Inventors:
Robert D. Dura, Broadview Heights, OH (US);
Jennifer E. Clark, Aurora, OH (US);
Carlos Alberto Nazario, Willoughby, OH (US);
Amanda E. Freshwater, Avon, OH (US);
Assignee:
The Lubrizol Corporation, Wickliffe, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10M 169/00 (2006.01); C10M 103/02 (2006.01); C10M 117/04 (2006.01); C10M 137/02 (2006.01); C10M 137/10 (2006.01); C10N 30/00 (2006.01); C10N 30/06 (2006.01); C10N 30/12 (2006.01); C10N 50/10 (2006.01);
U.S. Cl.
CPC ...
C10M 169/00 (2013.01); C10M 103/02 (2013.01); C10M 117/04 (2013.01); C10M 137/02 (2013.01); C10M 137/10 (2013.01); C10M 137/105 (2013.01); C10M 2201/0413 (2013.01); C10M 2203/003 (2013.01); C10M 2207/1285 (2013.01); C10M 2223/02 (2013.01); C10M 2223/045 (2013.01); C10M 2223/047 (2013.01); C10M 2223/049 (2013.01); C10N 2030/06 (2013.01); C10N 2030/12 (2013.01); C10N 2030/45 (2020.05); C10N 2050/10 (2013.01);
Abstract
The instant disclosure provides a grease composition containing an ash-free phosphonate ester mixture, which comprises of an ash-free phosphonate ester mixture of a cyclic phosphonate ester species and an oligomeric phosphonate ester species. The grease composition further includes a metallic soap thickener. The grease compositions disclosed herein demonstrate improved anti-wear protection under very demanding conditions and load carry.