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. 19, 2002
Filed:
Jul. 17, 2000
Applicant:
Inventors:
Catherine Hedouin, Gouvieux, FR;
Thierry Seguelong, Puteaux, FR;
Assignee:
Rhodia Chimie, Boulogne Billancourt, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 2/300 ; B01J 2/332 ; B01J 2/302 ; B01J 8/02 ; B01D 4/700 ;
U.S. Cl.
CPC ...
B01J 2/300 ; B01J 2/332 ; B01J 2/302 ; B01J 8/02 ; B01D 4/700 ;
Abstract
A composition is disclosed for reducing nitrogen oxide emissions from gases which comprises a support based on a cerium oxide, a zirconium oxide and an oxide of scandium or a rare earth other than cerium, and a supported phase based on manganese and at least one other element which is an alkali metal, alkaline-earth metal or a rare earth.