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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 5993762 B1

PDFFull Text
Date of Patent:
Nov. 30, 1999

Filed:

Nov. 08, 1995

Method of using catalyst containing noble metal and cerium dioxide

Applicant:
Inventors:

Raj R Rajaram, Slough, GB;

John W Hayes, Reading, GB;

Graham P Ansell, Twyford, GB;

Helen A Hatcher, Reading, GB;

Assignee:

Johnson Matthey Public Limited Company, London, GB;

Attorney:

Stevens, Davis, Miller & Mosher, L.L.P.

Primary Examiner:

Steven P Griffin

Assistant Examiner:

Peter DiMauro

Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
4232132 ; 4232135 ; 4232391 ; 4232453 ; 423247 ; 423659 ; 4234372 ;
Abstract

A reaction comprising the oxidation of carbon monoxide to carbon dioxide, eg in vehicle exhausts, employs a catalyst composed of metal oxide, eg. ceria, particles among which are uniformly incorporated noble metal particles, the particles having such a high interaction that, without hydrogen reduction pre-treatment, the catalyst exhibits the formation of anionic vacancies on the metal oxide surface at a temperature lower than does the corresponding catalyst prepared by impregnation. The catalyst employed is preferably prepared by co-precipitation.

Find Patent Forward Citations

Rajaram, Raj. (1999). Method of using catalyst containing noble metal and cerium dioxide (U.S. Patent No. 5993762). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5993762

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

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