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Your search returned 1104 patents.
( 423/239.1 in Current US Classification ) |
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| Patent ID | Title | Date Filed |
| 6878359 | Process and device for the selective catalytic reduction of nitrogen oxides in an oxygen-containing gaseous medium
| November 13, 2000 |
| 6875409 | Catalyst and process for oxidation and removal of nitrogen oxides (NOx) from combustion gases
| November 9, 2001 |
| 6872371 | Method and apparatus for NOx and SO2 removal
| August 5, 2002 |
| 6866834 | NOx reduction catalyst and NOx reduction system
| February 20, 2002 |
| 6863875 | Flue gas treating system and process
| September 11, 2000 |
| 6863874 | Process and apparatus for treating combustion exhaust gas
| July 12, 2001 |
| 6855303 | Method for selective catalytic reduction of nitrogen oxides
| June 19, 2003 |
| 6852298 | NOx reduction composition for use in FCC processes
| January 13, 2004 |
| 6848374 | Control of mercury emissions from solid fuel combustion
| June 3, 2003 |
| 6846471 | Catalyst for decomposing nitrous oxide, process for producing the same and method for decomposing nitrous oxide
| September 7, 2001 |
| 6843971 | Process and catalyst for reducing nitrogen oxides
| April 20, 2001 |
| 6806225 | Catalyst for exhaust gas purification, process for producing the same, and method of purifying exhaust gas
| December 4, 2000 |
| 6805849 | System for NOx reduction in exhaust gases
| January 9, 2001 |
| 6797247 | Material with a channel structure for eliminating oxides of nitrogen
| May 10, 2002 |
| 6793903 | High temperature decomposition of hydrogen peroxide
| December 6, 2001 |
| 6790808 | Exhaust gas purifying catalyst
| February 12, 2003 |
| 6787023 | Metal-containing macrostructures of porous inorganic oxide, preparation thereof, and use
| May 20, 2000 |
| 6770252 | Rolling regeneration diesel particulate trap
| November 21, 2001 |
| 6770251 | Exhaust gas purifying catalyst
| June 22, 2001 |
| 6764665 | Layered catalyst composite
| October 26, 2001 |
| 6761863 | Process for the removal of impurities from gas streams
| January 29, 2002 |
| 6759564 | Hydrate-based decontamination of toxic gases
| October 15, 2002 |
| 6759021 | Method and device for introducing a gaseous reducing agent of a nitrogen oxide into a gas mixture
| October 30, 2001 |
| 6759020 | Spark-ignited internal combustion engine oxide gas absorbing arrangement and method
| January 11, 2001 |
| 6743749 | Photocatalyst
| July 26, 2002 |
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