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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 11103855 B1

PDFFull Text
Date of Patent:
Aug. 31, 2021

Filed:

Feb. 15, 2016

Catalyst with stable nitric oxide (no) oxidation performance

Applicant:

Johnson Matthey Public Limited Company, London, GB;

Inventors:

Andrew Francis Chiffey, Ware, GB;

Daniel Hatcher, Royston, GB;

Francois Moreau, Cambridge, GB;

Paul Richard Phillips, Royston, GB;

Freyja Woods, Royston, GB;

Assignee:

Johnson Matthey Public Limited Company, London, GB;

Attorney:
Primary Examiner:

Jelitza M Perez

Int. Cl.
CPC ...
B01J 23/42 (2006.01); B01J 37/08 (2006.01); B01J 37/16 (2006.01); B01J 37/02 (2006.01); B01D 53/94 (2006.01); F01N 3/20 (2006.01); F01N 3/035 (2006.01); F01N 3/023 (2006.01); B01J 23/44 (2006.01); B01J 35/00 (2006.01);
U.S. Cl.
CPC ...
B01J 23/42 (2013.01); B01D 53/944 (2013.01); B01D 53/9418 (2013.01); B01D 53/9477 (2013.01); B01J 23/44 (2013.01); B01J 35/0006 (2013.01); B01J 35/006 (2013.01); B01J 37/0201 (2013.01); B01J 37/0244 (2013.01); B01J 37/0248 (2013.01); B01J 37/08 (2013.01); B01J 37/16 (2013.01); F01N 3/0231 (2013.01); F01N 3/035 (2013.01); F01N 3/2066 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/30 (2013.01); B01D 2255/92 (2013.01); F01N 2250/02 (2013.01); F01N 2370/04 (2013.01); Y02A 50/20 (2018.01); Y02T 10/12 (2013.01);
Abstract

A method of preparing a catalyst composition for producing a stable ratio of NOto NO in an exhaust system of a compression ignition engine is described. The method comprises: (i) preparing a first composition comprising a platinum (Pt) compound disposed or supported on a support material; (ii) preparing a second composition by reducing the platinum (Pt) compound to platinum (Pt) with a reducing agent; and (iii) heating the second composition to at least 650° C.

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Chiffey, Andrew. (2021). Catalyst with stable nitric oxide (no) oxidation performance (U.S. Patent No. 11103855). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11103855

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

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