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Class Information
Number: 423/213.5
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 > Group viii element
Description: Processes in which the transition element is one which appears in Group VIII of the Periodic Table.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7597865 |
Nitrogen oxide removal catalyst system and nitrogen oxide removal method |
Oct. 6, 2009 |
| 7585477 |
Catalyst and method for catalytic reduction of nitrogen oxides |
Sep. 8, 2009 |
| 7585478 |
Exhaust-gas purifying catalyst |
Sep. 8, 2009 |
| 7569197 |
Process for purification of sulphur-containing exhaust gas |
Aug. 4, 2009 |
| 7556786 |
Method of processing alkali-activation exhaust gas |
Jul. 7, 2009 |
| 7550124 |
Layered catalyst composite |
Jun. 23, 2009 |
| 7527774 |
Inlet metallic foam support coupled to precious metal catalyst for application on 4 stroke platforms |
May. 5, 2009 |
| 7520909 |
Low temperature methods for hydrogen production |
Apr. 21, 2009 |
| 7521033 |
Exhaust inlet metallic foam trap coupled to a downstream monolithic precious metal catalyst |
Apr. 21, 2009 |
| 7517510 |
Layered catalyst composite |
Apr. 14, 2009 |
| 7517511 |
Method and apparatus for mitigating mercury emissions in exhaust gases |
Apr. 14, 2009 |
| 7514055 |
Method of controlling emissions from a diesel cycle internal combustion engine with perovskite-type metal oxide compounds |
Apr. 7, 2009 |
| 7501105 |
NOx reduction catalyst having excellent low-temperature characteristics |
Mar. 10, 2009 |
| 7494634 |
Reduction of nitrogen oxides using multiple split streams |
Feb. 24, 2009 |
| 7488462 |
Multi-stage catalyst systems and uses thereof |
Feb. 10, 2009 |
| 7485271 |
Catalyst structure for treating NO.sub.x containing exhaust gas from a lean burn engine |
Feb. 3, 2009 |
| 7485270 |
Process for treating compression ignition engine exhaust gas |
Feb. 3, 2009 |
| 7485273 |
Method for the reduction of NO.sub.x and NH.sub.3 emissions |
Feb. 3, 2009 |
| 7476373 |
Treating agent for exhaust gas containing metal hydride compound and method for treating exhaust gas containing metal hydride compound |
Jan. 13, 2009 |
| 7468171 |
Process using microwave energy and a catalyst to decompose nitrogen oxides |
Dec. 23, 2008 |
| 7462338 |
Boron-alumina catalyst support |
Dec. 9, 2008 |
| 7442354 |
Treatment of engine exhaust using molecular sieve SSZ-56 |
Oct. 28, 2008 |
| 7431749 |
Catalytic filter for removing soot particulates from diesel engine exhaust and method of preparing the same |
Oct. 7, 2008 |
| 7431905 |
Catalyst system and method for the reduction of NO.sub.x |
Oct. 7, 2008 |
| 7413720 |
Catalyst and method for reduction of nitrogen oxides |
Aug. 19, 2008 |
| 7407911 |
Method of preparing a double layered, palladium-only three-way catalyst |
Aug. 5, 2008 |
| 7402292 |
Device and methods of ammonia generation for NOx abatement |
Jul. 22, 2008 |
| 7396516 |
Manganese containing oxygen storage component comprising three-way catalyst composition |
Jul. 8, 2008 |
| 7393804 |
Exhaust gas purifying catalyst and process for purification of exhaust gas |
Jul. 1, 2008 |
| 7390469 |
Bimodal catalyst-urea SCR system for enhanced NO.sub.x conversion and durability |
Jun. 24, 2008 |
| 7384612 |
Diesel exhaust gas purifying filter |
Jun. 10, 2008 |
| 7371358 |
Catalyst for treatment and control of post-combustion emissions |
May. 13, 2008 |
| 7361320 |
Exhaust gas purification unit with reducing agent supply |
Apr. 22, 2008 |
| 7357904 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-74 |
Apr. 15, 2008 |
| 7287370 |
NOx-trap |
Oct. 30, 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 |
| RE39553 |
SOx tolerant NOx trap catalysts and methods of making and using the same |
Apr. 10, 2007 |
| 7150861 |
Catalyst for purification of exhaust gases and process for purification of exhaust gases |
Dec. 19, 2006 |
| 7141526 |
Exhaust gas purifying catalyst and process for purifying exhaust gas by use of the catalyst |
Nov. 28, 2006 |
| 7137249 |
Thermally stable lean nox trap |
Nov. 21, 2006 |
| 7138097 |
Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-73 |
Nov. 21, 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 |
| 7078004 |
Diesel oxidation catalyst |
Jul. 18, 2006 |
| 7033558 |
Method for eliminating traces of hydrocarbons from gas streams |
Apr. 25, 2006 |
| 7022297 |
Method and system for purifying or cleansing a gas stream or gaseous body |
Apr. 4, 2006 |
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