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:
Oct. 04, 1994
Filed:
Jan. 11, 1993
Applicant:
Inventors:
Gilbert Blanchard, Le Plessis Belleville, FR;
Thierry Chopin, Saint Denis, FR;
Assignee:
Rhone-Poulenc Chimie, Courbevoie Cedex, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502263 ; 502300 ; 502304 ;
Abstract
Novel supported catalysts, well adapted for the catalytic conversion of exhaust gases emanating from internal combustion engines, include a porous carrier material, e.g., alumina spheres, such porous carrier material having a catalytically effective amount of at least one non-platinum group catalytically active element, e.g., cerium, essentially homogeneously concentrated throughout the depth of a defined peripheral face surface layer (outer band or ring) thereof.