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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 12595324 B1

PDFFull Text
Date of Patent:
Apr. 07, 2026

Filed:

Aug. 25, 2020

Ethylene copolymers and use as viscosity modifiers

Applicants:

Chevron Oronite Company Llc, Richmond, CA (US);

Exxonmobil Chemical Patents Inc., Houston, TX (US);

Inventors:

Sara Zhang, Danville, CA (US);

Maryam Sepehr, San Ramon, CA (US);

David Morgan, Pleasanton, CA (US);

Jingwen Zhang, Houston, TX (US);

Assignees:

Chevron Oronite Company LLC, Richmond, CA (US);

ExxonMobil Chemical Patents Inc., Houston, TX (US);

Attorneys:

Eric D. Babych

Barnes & Thornburg LLP

Primary Examiner:

Cephia D Toomer

Int. Cl.
CPC ...
C08F 210/16 (2006.01); C08F 2/06 (2006.01); C10M 143/02 (2006.01); C10M 143/04 (2006.01); C10N 20/04 (2006.01); C10N 30/02 (2006.01);
U.S. Cl.
CPC ...
C08F 210/16 (2013.01); C08F 2/06 (2013.01); C10M 143/02 (2013.01); C10M 143/04 (2013.01); C10M 2205/022 (2013.01); C10M 2205/024 (2013.01); C10N 2020/04 (2013.01); C10N 2030/02 (2013.01);
Abstract

In some embodiments, the present disclosure provides for ethylene-Cto Calpha-olefins random copolymers having an ethylene content of about 45 wt % to about 70 wt % and a Mw(DRI)/Mn(DRI) of from 1.1 to 1.9. In some embodiments, the ethyl-C ene-propylene random copolymer is used as a viscosity modifier in a lubricating composition.

Find Patent Forward Citations

Zhang, Sara. (2026). Ethylene copolymers and use as viscosity modifiers (U.S. Patent No. 12595324). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12595324

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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