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:
Jun. 09, 1992
Filed:
Jul. 23, 1990
Applicant:
Inventors:
Stephan Blumrich, Muehlheim, DE;
Reinhold Brand, Hanau, DE;
Bernd Engler, Hanau, DE;
Wolfgang Honnen, Bruchkoebel, DE;
Edgar Koberstein, Alzenau, DE;
Assignee:
Degusaa Aktiengesellschaft (Degussa AG), Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502 78 ; 502204 ; 502206 ; 502207 ; 502217 ; 502242 ; 502304 ; 4232132 ; 4232135 ;
Abstract
A one-piece catalyst for purifying exhaust gases, particularly from internal combustion engines and gas turbines operated above the stoichiometric ratio. The one-piece honeycomb ceramic or metal carrier has a reduction catalyst on its leading-edge portion and an oxidation catalyst on its trailing-edge portion.