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:
Jul. 27, 1999
Filed:
Apr. 11, 1997
Applicant:
Inventors:
Jurgen Leyrer, Kahl, DE;
Dieter Lindner, Hauau, DE;
Egbert Lox, Hanau, DE;
Thomas Kreuzer, Karben, DE;
Wilfried Muller, Offenbach, DE;
Rainer Domesle, Alzenau, DE;
Assignee:
Degussa-Huls Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502 64 ; 422171 ; 422177 ; 422211 ; 423212 ; 4232135 ; 4232392 ; 502 66 ; 502 67 ;
Abstract
A catalyst for purifying the exhaust gases from diesel engines. The catalyst contains a zeolite mixture of several zeolites with different moduli and platinum group metals as well as further metal oxides from the group aluminum silicate, aluminum oxide and titanium oxide, wherein the aluminum silicate has a ratio by weight of silicon dioxide to aluminum oxide of 0.005 to 1 and the platinum group metals are deposited on only the further metal oxides.