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:
Aug. 13, 1991
Filed:
Jan. 08, 1990
Applicant:
Inventors:
Assignee:
N. E. Chemcat Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502304 ; 4232135 ;
Abstract
An exhaust gas purification catalyst for removing carbon monoxide, hydrocarbons and nitrogen oxides from an exhaust gas and suppressing the evolution of hydrogen sulfide comprises a monolithic support and deposited thereon, at least one platinum-group element, active alumina, cerium oxide and germanium oxide. The catalyst is produced by a process which comprises