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, 1993
Filed:
Jun. 15, 1992
Applicant:
Inventors:
Samuel Tauster, Englishtown, NJ (US);
Joseph C Dettling, Howell, NJ (US);
John J Mooney, Wyckoff, NJ (US);
Assignee:
Engelhard Corporation, , US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502251 ; 502302 ; 502303 ; 502304 ; 502324 ; 502326 ; 502327 ; 4232135 ;
Abstract
H.sub.2 S formation by three-way catalyst is suppressed by incorporating nickel, manganese or iron oxides into an undercoat layer disposed on a substrate, such as a monolith substrate. A topcoat overlying the undercoat is comprised of a three-way catalyst material which includes one or more of platinum, rhodium and palladium as catalytic metals.