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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 11912949 B1

PDFFull Text
Date of Patent:
Feb. 27, 2024

Filed:

Oct. 20, 2020

Method for reducing intake valve deposits

Applicant:

Shell Oil Company, Houston, TX (US);

Inventors:

Roger Francis Cracknell, London, GB;

Joseph Michael Russo, Houston, TX (US);

Allen Ambwere Aradi, Houston, TX (US);

Andreas Kolbeck, Hamburg, DE;

Assignee:

SHELL USA, INC., Houston, TX (US);

Attorney:

SHELL USA, INC.

Primary Examiner:

Cephia D Toomer

Int. Cl.
CPC ...
C10L 1/14 (2006.01); C10L 1/182 (2006.01); C10L 1/2387 (2006.01); C10L 10/14 (2006.01); F02M 25/022 (2006.01);
U.S. Cl.
CPC ...
C10L 1/143 (2013.01); C10L 1/182 (2013.01); C10L 1/2387 (2013.01); C10L 10/14 (2013.01); F02M 25/0228 (2013.01); C10L 2200/0423 (2013.01); C10L 2250/04 (2013.01); C10L 2270/023 (2013.01); C10L 2300/30 (2013.01);
Abstract

Method for reducing intake valve deposits in a spark ignition internal combustion engine which is fuelled with a gasoline fuel composition, wherein the method comprises introducing into the engine an aqueous based composition, wherein the aqueous based composition comprises (i) water, (ii) from 0 vol % to 40 vol % freezing point suppression agent, (iii) from 0 vol % to 10 vol % of surfactant, and (iv) an amine compound in a blending amount of from 0 ppmw to 1000 ppmw.

Find Patent Forward Citations

Cracknell, Roger. (2024). Method for reducing intake valve deposits (U.S. Patent No. 11912949). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11912949

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

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