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Class Information
Number: 423/213.2
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Mixture is exhaust from internal-combustion engine > Utilizing as solid sorbent, catalyst, or reactant a material containing a transition element
Description: Processes, in which the material used to treat the gaseous mixture is in the solid-state and comprises a transition element, or compound thereof, and which functions to (1) modify a component, or (2) attract and retain a component, or (3) react with and chemically change a component.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7361319 |
Mixed metal oxide sorbents |
Apr. 22, 2008 |
| 7361320 |
Exhaust gas purification unit with reducing agent supply |
Apr. 22, 2008 |
| 7357901 |
Exhaust gas purification device for an internal combustion engine and exhaust gas purification method for an internal combustion engine |
Apr. 15, 2008 |
| 7357904 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-74 |
Apr. 15, 2008 |
| 7332142 |
Method and apparatus for bubble injection of agent into exhaust gas for use with emission abatement device |
Feb. 19, 2008 |
| 7267807 |
Method and device for treating automotive exhaust |
Sep. 11, 2007 |
| 7264785 |
Selective catalytic reduction |
Sep. 4, 2007 |
| 7247185 |
Device for treatment of a gas flow |
Jul. 24, 2007 |
| 7235221 |
NO.sub.x catalyst and method of suppressing sulfate formation in an exhaust purification system |
Jun. 26, 2007 |
| 7226569 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-56 |
Jun. 5, 2007 |
| 7211232 |
Refractory exhaust filtering method and apparatus |
May. 1, 2007 |
| 7210288 |
Exhaust gas aftertreatment installation and method |
May. 1, 2007 |
| 7199078 |
Vehicle sulfur oxide trap and related method |
Apr. 3, 2007 |
| 7198767 |
Method for treating fluids on bulk material |
Apr. 3, 2007 |
| 7188470 |
Combustion process |
Mar. 13, 2007 |
| 7146802 |
Reducing NO.sub.x emissions with a staged catalyst |
Dec. 12, 2006 |
| 7141226 |
Light-duty diesel catalysts |
Nov. 28, 2006 |
| 7138097 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-73 |
Nov. 21, 2006 |
| 7137249 |
Thermally stable lean nox trap |
Nov. 21, 2006 |
| 7115237 |
Exhaust gas purifying method and exhaust gas purifying system |
Oct. 3, 2006 |
| 7094722 |
NO.sub.x catalyst and method of suppressing sulfate formation in an exhaust purification system |
Aug. 22, 2006 |
| 7083767 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-70 |
Aug. 1, 2006 |
| 7083766 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-71 |
Aug. 1, 2006 |
| 7081231 |
Method and system for the combination of non-thermal plasma and metal/metal oxide doped .gamma.-alumina catalysts for diesel engine exhaust aftertreatment system |
Jul. 25, 2006 |
| 7028468 |
Process for reducing pollutants from the exhaust of a diesel engine |
Apr. 18, 2006 |
| 7014825 |
Perovskite-type metal oxide compounds and methods of making and using thereof |
Mar. 21, 2006 |
| 6960236 |
Clean room |
Nov. 1, 2005 |
| 6953561 |
Device for the selective oxidation of a substance stream |
Oct. 11, 2005 |
| 6948308 |
Combatting air pollution |
Sep. 27, 2005 |
| 6949235 |
Process for reducing pollutants from the exhaust of a diesel engine |
Sep. 27, 2005 |
| 6946107 |
Conversion of nitrogen oxides in the presence of a catalyst supported on a mesh-like structure |
Sep. 20, 2005 |
| 6928807 |
Method and apparatus for producing ammonia (NH3) |
Aug. 16, 2005 |
| 6912847 |
Diesel engine system comprising a soot filter and low temperature NOx trap |
Jul. 5, 2005 |
| 6905665 |
Method for purifying carbon monoxide |
Jun. 14, 2005 |
| 6901334 |
Methods and systems for high throughput analysis |
May. 31, 2005 |
| 6884402 |
Catalyst for purification of exhaust gases, production process therefor, and process for purification of exhaust gases |
Apr. 26, 2005 |
| 6883305 |
Method for cleaning exhaust gas from an internal combustion engine |
Apr. 26, 2005 |
| 6878354 |
Catalyst and process for exhaust purification |
Apr. 12, 2005 |
| 6866702 |
Device for absorbing carbon dioxide, and a method for absorbing carbon dioxide |
Mar. 15, 2005 |
| 6863874 |
Process and apparatus for treating combustion exhaust gas |
Mar. 8, 2005 |
| 6864214 |
Exhaust gas purifying catalyst |
Mar. 8, 2005 |
| 6843817 |
Ceramic filter and filter device |
Jan. 18, 2005 |
| 6843971 |
Process and catalyst for reducing nitrogen oxides |
Jan. 18, 2005 |
| 6818043 |
Vapor-phase contaminant removal by injection of fine sorbent slurries |
Nov. 16, 2004 |
| 6811684 |
Hydrocarbon conversion process and catalyst useful therein |
Nov. 2, 2004 |
| 6808694 |
NOx reduction methods and apparatuses |
Oct. 26, 2004 |
| 6797247 |
Material with a channel structure for eliminating oxides of nitrogen |
Sep. 28, 2004 |
| 6790808 |
Exhaust gas purifying catalyst |
Sep. 14, 2004 |
| 6786041 |
Exhaust gas purification method and exhaust gas purification apparatus |
Sep. 7, 2004 |
| 6787023 |
Metal-containing macrostructures of porous inorganic oxide, preparation thereof, and use |
Sep. 7, 2004 |
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