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:
May. 18, 1999
Filed:
Dec. 12, 1996
Applicant:
Inventors:
Martin Hartweg, Erbach, DE;
Andrea Seibold, Blaustein, DE;
Leonhard Walz, Rastatt, DE;
Thomas Fetzer, Speyer, DE;
Bernd Morsbach, Ludwigshafen, DE;
Assignee:
Daimler-Benz Aktiengesellschaft, Stuttgart, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502524 ; 502302 ; 502525 ; 4232132 ; 4232135 ; 4232391 ;
Abstract
A catalyst and a method for producing the catalyst, for catalytic reduction of NO.sub.x and oxidation of hydrocarbons, the catalyst comprises a zinc, copper and aluminum spinel to which, at least one element selected from palladium, platinum, rhodium, ruthenium, osmium, iridium, rhenium and/or rare earth metals, such as lanthanum and cerium, vanadium, titanium, niobium, molybdenum, tungsten and/or salts thereof and/or oxides thereof has been added.