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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.:

US 12600916 B1

PDFFull Text
Date of Patent:
Apr. 14, 2026

Filed:

Dec. 01, 2022

Open gear lubricant composition

Applicant:

The Lubrizol Corporation, Wickliffe, OH (US);

Inventors:

Jennifer E. Clark, Aurora, OH (US);

Robert D. Dura, Broadview Heights, OH (US);

Carlos Alberto Nazario, Willoughby, OH (US);

Yang Cao, Solon, OH (US);

Assignee:

The Lubrizol Corporation, Wickliffe, OH (US);

Attorneys:

Christopher P. Demas

Michael Miller

Primary Examiner:

Vishal V Vasisth

Int. Cl.
CPC ...
C10M 107/02 (2006.01); C10M 113/08 (2006.01); C10M 125/22 (2006.01); C10M 125/26 (2006.01); C10N 10/02 (2006.01); C10N 10/04 (2006.01); C10N 10/12 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/00 (2006.01); C10N 30/06 (2006.01);
U.S. Cl.
CPC ...
C10M 107/02 (2013.01); C10M 113/08 (2013.01); C10M 125/22 (2013.01); C10M 125/26 (2013.01); C10N 2010/02 (2013.01); C10N 2010/04 (2013.01); C10N 2010/12 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2030/06 (2013.01); C10N 2030/40 (2020.05);
Abstract

The invention provides an open gear lubricant composition containing a blend of ethylene-propylene copolymers and a metallic soap thickener. The blend of ethylene-propylene copolymers includes a first ethylene-propylene copolymer having a kinematic viscosity at 100° C. of 80 centistokes to 220 centistokes and a second ethylene-propylene copolymer having a kinematic viscosity at 100° C. 500 centistokes to 3000 centistokes. The invention further relates to a method of lubricating a mechanical device with the open gear lubricant composition.

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