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. 05, 1990
Filed:
Oct. 21, 1988
Applicant:
Inventors:
Gilbert Blanchard, Le Plessis Belleville, FR;
Francois Garreau, Paris, FR;
Michel Prigent, Rueil Malmaison, FR;
Richard Dozieres, Beynes, FR;
Assignee:
Pro-Catalyse, Rueil Malmaison Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502304 ; 502302 ; 502303 ; 502325 ; 502338 ; 502339 ; 502349 ; 4232135 ;
Abstract
Improvedly time-stable catalysts adopted for the treatment of internal combustion engine exhaust gases include a monolithic catalyst support impregnated with a plurality of catalytically active phases, one section of the support being impregnated with a first catalytically active phase and remaining section of the support being impregnated with a second catalytically active phase.