Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Reexamination Certificate
2005-05-03
2005-05-03
Johnson, Christina (Department: 1725)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
C502S065000, C502S064000, C502S066000, C502S071000, C502S073000, C502S074000, C502S077000, C502S079000
Reexamination Certificate
active
06887444
ABSTRACT:
An exhaust gas purifying catalyst for purifying exhaust gas discharged from an automotive internal combustion engine. The exhaust gas purifying catalyst comprises a monolithic substrate. A HC adsorbing layer for adsorbing hydrocarbons (HC) is formed on the monolithic substrate. The HC absorbing layer contains zeolite. A catalytic layer for producing hydrogen (H2) and reducing NOx is formed on the HC adsorbing layer. The catalytic layer functions to produce hydrogen (H2) from at least one of hydrocarbons and carbon monoxide (CO) and to reduce nitrogen oxides (NOx) with the produced hydrogen and at least one of hydrocarbons and carbon monoxide in exhaust gas.
REFERENCES:
patent: 5164350 (1992-11-01), Abe et al.
patent: 5473887 (1995-12-01), Takeshima et al.
patent: 5676912 (1997-10-01), Sharma et al.
patent: 6047544 (2000-04-01), Yamamoto et al.
patent: 0 002 791 (1979-07-01), None
patent: 0 782 880 (1997-07-01), None
patent: 0 852 966 (1998-07-01), None
patent: 0 904 827 (1999-03-01), None
patent: 58-20307 (1983-04-01), None
patent: 08-010566 (1996-01-01), None
patent: 2600492 (1997-01-01), None
patent: 10-225636 (1998-08-01), None
Foley & Lardner LLP
Johnson Christina
Nissan Motor Co,. Ltd.
LandOfFree
Exhaust gas purifying catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exhaust gas purifying catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exhaust gas purifying catalyst will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3451166