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.:
Date of Patent:
Mar. 23, 1976
Filed:
Dec. 19, 1973
Applicant:
Inventors:
Walter Westwood, London, EN;
John Blunden Payne, London, EN;
Assignee:
Johnson, Matthey & Co., Limited, London, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
252472 ; 4232135 ;
Abstract
This invention relates to catalysts for use in the control of atmospheric pollution. The catalysts of the present invention are especially useful in the purification of exhaust gases from internal combustion engines and comprise oxidised ruthenium or ruthenium dioxide and a base metal oxide which forms a stable mixed metal oxide with ruthenium dioxide. The base metal may be selected from Groups IV and V of the Periodic Table.