ClassID:

29773

B01D53/9413 - CPC Classification

Classification description:

Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,; Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes; Removing only nitrogen compounds; Nitrogen oxides Processes characterised by a specific catalyst

Recent Application in this class:
#1
20250387783
2025-12-25

EXHAUST GAS PURIFICATION DEVICE

#2
20250276309
2025-09-04

EXHAUST GAS PURIFICATION DEVICE AND METHOD FOR MANUFACTURING EXHAUST GAS PURIFICATION DEVICE

#3
20250242308
2025-07-31

OXIDATION CATALYST FOR EXHAUST GAS PURIFICATION AND EXHAUST GAS OXIDATION METHOD USING SAME

#4
20240408543
2024-12-12

EXHAUST GAS PURIFYING SYSTEM AND EXHAUST GAS PURIFYING CATALYST BODY FOR GASOLINE ENGINE

#5
20240399353
2024-12-05

EXHAUST GAS PURIFICATION CATALYST

#6
20240390878
2024-11-28

GRAIN BOUNDARY AND SURFACE-DOPED RARE EARTH MANGANESE-ZIRCONIUM COMPOSITE COMPOUND AND PREPARATION METHOD AND USE THEREOF

#7
20240359166
2024-10-31

LOW-TEMPERATURE NITROGEN OXIDE ADSORBER BASED ON METAL OXIDE-SUPPORTED PLATINUM/GAMMA-ALUMINA CATALYST AND METHOD FOR PREPARING SAME

#8
20240351015
2024-10-24

METHOD OF REGENERATING NITROUS OXIDE-DECOMPOSING CATALYST AND METHOD OF DECOMPOSING NITROUS OXIDE

#9
20240307854
2024-09-19

EXHAUST GAS PURIFYING CATALYST

#10
20240278218
2024-08-22

CATALYST ARTICLE HAVING HIGH LOCAL RHODIUM CONCENTRATION

#11
20240261769
2024-08-08

Isolated Metal Species in Metal-Zeolite Catalytic Material for Low Temperature SCR of NOx with NH3

#12
20240091751
2024-03-21

COPPER CHA ZEOLITE CATALYSTS

#13
20230405564
2023-12-21

CATALYST FOR ENHANCED HIGH TEMPERATURE CONVERSION AND REDUCED N2O MAKE

#14
20230374925
2023-11-23

HEATING CARRIER, AND EXHAUST GAS REDUCTION CARRIER HAVING HEATING CARRIER

#15
20230330646
2023-10-19

Method for making functional structural body

#16
20230323801
2023-10-12

Urea removing apparatus

#17
20230294084
2023-09-21

EXHAUST GAS PURIFICATION CATALYST

#18
20230294078
2023-09-21

EXHAUST GAS PURIFICATION CATALYST

#19
20230202938
2023-06-29

METHOD OF DISPERSING ANATASE TITANIUM DIOXIDE FOR PENETRATION IN CONCRETE STRUCTURES TO REDUCE POLLUTANTS

#20
20230201770
2023-06-29

CATALYST FOR PURIFICATION OF EXHAUST GAS

#21
20230081351
2023-03-16

Copper CHA zeolite catalysts

#22
20230078076
2023-03-16

Exhaust gas purification catalyst

#23
20220339613
2022-10-27

Passive NOadsorber

#24
20220339606
2022-10-27

Methods for exhaust gas purification

#25
20220297094
2022-09-22

Exhaust gas purification catalyst

#26
20220241762
2022-08-04

Zeolite synthesis with alkaline earth metal

#27
20220212181
2022-07-07

Large particle, high performance catalytic tape

#28
20220040636
2022-02-10

Exhaust gas purifying catalyst

#29
20220040635
2022-02-10

Exhaust gas purifying catalyst

#30
20210316281
2021-10-14

Zinc doped manganese-iron spinel catalyst material and method of making and using the same

#31
20210283589
2021-09-16

Exhaust gas purification device

#32
20210283584
2021-09-16

Direct no decomposition catalyst

#33
20210268424
2021-09-02

Honeycomb filter

#34
20210268423
2021-09-02

Honeycomb filter

#35
20210213434
2021-07-15

Diesel oxidation catalysts for ultralow NOcontrol

#36
20210197176
2021-07-01

Exhaust gas purification catalyst

#37
20210106979
2021-04-15

CATALYST FOR REMOVING NITROGEN OXIDE AND MANUFACTURING METHOD THEREOF

#38
20210008531
2021-01-14

CATALYZED SCR FILTER AND EMISSION TREATMENT SYSTEM

#39
20200376467
2020-12-03

EXHAUST GAS PURIFICATION CATALYST DEVICE

#40
20200376466
2020-12-03

Composition for exhaust gas purification, exhaust gas purifying catalyst containing same, and exhaust gas purifying catalyst structure

#41
20200368685
2020-11-26

PROCESS AND APPARATUS FOR TREATMENT OF GAS STREAMS CONTAINING NITROGEN OXIDES

#42
20200360908
2020-11-19

Zeolite synthesis with alkaline earth metal

#43
20200338534
2020-10-29

Tricobalt tetraoxide dodecahedron/carbon nitride nanosheet composite and application thereof in exhaust gas treatment

#44
20200276568
2020-09-03

Exhaust gas purifying catalyst

#45
20200261895
2020-08-20

Copper CHA zeolite catalysts

#46
20200261889
2020-08-20

Denitration catalyst and denitration device

#47
20200230584
2020-07-23

ALDEHYDE DECOMPOSITION CATALYST, EXHAUST GAS TREATMENT APPARATUS, AND EXHAUST GAS TREATMENT METHOD

#48
20200156003
2020-05-21

Aldehyde decomposition catalyst, and exhaust gas treatment apparatus and exhaust gas treatment method

#49
20200114342
2020-04-16

Zeolite synthesis with alkaline earth metal

#50
20200108377
2020-04-09

Catalyzed SCR filter and emission treatment system

#51
20200108376
2020-04-09

SCR catalyst

#52
20200108374
2020-04-09

Functional structural body and method for making functional structural body

#53
20200086303
2020-03-19

Catalyst and method for preparing catalyst

#54
20200047119
2020-02-13

Exhaust gas purifying catalyst

#55
20200030780
2020-01-30

Exhaust gas purification catalyst

#56
20200018205
2020-01-16

Automated guided vehicle for an emissions control system

#57
20190389781
2019-12-26

Method of dispersing anatase titanium dioxide for penetration in concrete structures to reduce pollutants

#58
20190299196
2019-10-03

Silicon carbide porous body and method for producing the same

#59
20190291051
2019-09-26

Two-stage catalyst for removal of NOfrom exhaust gas stream

#60
20190270077
2019-09-05

Method for forming lanthanum hydroxycarbonate nanoparticles

#61
20190270076
2019-09-05

Method for making LaCO3OH nanoparticles from aqueous salt solutions

#62
20190232263
2019-08-01

Catalyzed SCR filter and emission treatment system

#63
20190134615
2019-05-09

Active SCR catalyst

#64
20190134564
2019-05-09

Copper-promoted GMElinite and use thereof in the selective catalytic reduction of NOX

#65
20190083964
2019-03-21

EXHAUST GAS PURIFICATION CATALYST

#66
20190076827
2019-03-14

Direct NOx decomposition catalyst with improved activity and selectivity

#67
20190009244
2019-01-10

Compositions for passive NOx adsorption (PNA) systems and methods of making and using same

#68
20180339268
2018-11-29

Potassium dispersed on spinel oxides as catalysts for direct NOx decomposition

#69
20180326355
2018-11-15

Palladium oxide dispersed on spinel oxides as catalysts for direct NOx decomposition

#70
20180306078
2018-10-25

Movable emission control system for auxiliary diesel engines

#71
20180304244
2018-10-25

PASSIVE NOx ADSORBER

#72
20180296978
2018-10-18

Copper oxides supported on spinel oxides as catalysts for low temperature direct NOx decomposition

#73
20180283251
2018-10-04

Two-stage catalyst for removal of NOfrom exhaust gas stream

#74
20180250632
2018-09-06

Method for the removal of nitrogen oxides from exhaust gas by selective catalytic reduction in presence of an SCR catalyst comprising a Fe-AEI zeolithic material essentially free of alkali metal

#75
20180207623
2018-07-26

Metal tungstates for use as nitrogen oxides reduction catalysts

#76
20180185826
2018-07-05

METHOD FOR PRODUCING EXHAUST GAS PURIFYING FILTER, EXHAUST GAS PURIFYING FILTER, AND EXHAUST GAS PURIFICATION DEVICE

#77
20180163599
2018-06-14

Exhaust purifying apparatus

#78
20180133702
2018-05-17

Cu/LTA catalyst and exhaust system, and manufacturing method of cu/LTA catalyst

#79
20180127283
2018-05-10

Zeolite SSZ-52x

#80
20180112570
2018-04-26

Catalytic converter and method of controlling exhaust emission

#81
20180099264
2018-04-12

Catalyst for direct NOx decomposition and a method of forming and using the catalyst

#82
20180093259
2018-04-05

Zeolite synthesis with alkaline earth metal

#83
20180093258
2018-04-05

Synthesis of metal promoted zeolite catalyst

#84
20180093249
2018-04-05

Compositions for passive NOadsorption (PNA) systems and methods of making and using same

#85
20180065086
2018-03-08

DIESEL OXIDATION CATALYST WITH NOX ADSORBER ACTIVITY

#86
20180056281
2018-03-01

Copper CHA zeolite catalysts

#87
20180029021
2018-02-01

Methods to produce molecular sieves with LTA topology and compositions derived therefrom

#88
20180021764
2018-01-25

Stabilized metal-exchanged SAPO material

#89
20180002183
2018-01-04

Zeolite SSZ-52x

#90
20170341025
2017-11-30

ALDEHYDE DECOMPOSITION CATALYST, EXHAUST GAS TREATMENT APPARATUS, AND EXHAUST GAS TREATMENT METHOD

#91
20170333885
2017-11-23

ALDEHYDE DECOMPOSITION CATALYST, EXHAUST GAS TREATMENT APPARATUS, AND EXHAUST GAS TREATMENT METHOD

#92
20170333884
2017-11-23

Catalyzed SCR filter and emission treatment system

#93
20170312742
2017-11-02

Methods and materials for direct NOx decomposition in lean exhaust gases

#94
20170304808
2017-10-26

Transition metal oxide-containing cerium dioxide particles

#95
20170291133
2017-10-12

Porous alpha-SiC-containing shaped body having a contiguous open pore structure

#96
20170282168
2017-10-05

Manufacturing method of honeycomb structure

#97
20170282123
2017-10-05

Core-shell oxide material, method for producing the same, and catalyst and method for purification of exhaust gas using the core-shell oxide material

#98
20170274366
2017-09-28

Honeycomb structure

#99
20170274357
2017-09-28

Porous ceramic structural body

#100
20170233260
2017-08-17

PROCESSES USING MOLECULAR SIEVE SSZ-102

#101
20170232428
2017-08-17

Catalyst and method for preparing catalyst

#102
20170209857
2017-07-27

Catalysts for treating transient NOemissions

#103
20170113186
2017-04-27

EXHAUST GAS PURIFICATION SYSTEM, CATALYST, AND EXHAUST GAS PURIFICATION METHOD

#104
20170106357
2017-04-20

Processes using molecular sieve SSZ-105

#105
20170065967
2017-03-09

Method for disposing SCR composition on a wall flow monolith

#106
20170036153
2017-02-09

Particulate filter provided with catalyst and method for manufacturing said filter

#107
20170029342
2017-02-02

Method of dispersing anatase titanium dioxide for penetration in concrete structures to reduce pollutants

#108
20160340197
2016-11-24

Processes using molecular sieve SSZ-27

#109
20160279614
2016-09-29

Exhaust gas purification catalyst and the method for producing the same

#110
20160279608
2016-09-29

Composition based on oxides of zirconium, cerium, niobium and tin, preparation processes and use in catalysis

#111
20160263562
2016-09-15

Methods to produce molecular sieves with LTA topology and compositions derived therefrom

#112
20160236182
2016-08-18

Ceria-supported metal catalysts for the selective reduction of NO

#113
20160220988
2016-08-04

Direct incorporation of iron complexes into SAPO-34 (CHA) type materials

#114
20160184804
2016-06-30

Exhaust gas purifying catalyst and production method thereof

#115
20160175823
2016-06-23

Catalyzed SCR filter and emission treatment system

#116
20160136617
2016-05-19

Synergized PGM Catalyst with Low PGM Loading and High Sulfur Resistance for Diesel Oxidation Application

#117
20160114313
2016-04-28

PROCESSES USING MOLECULAR SIEVE SSZ-102

#118
20160101412
2016-04-14

Copper CHA zeolite catalysts

#119
20160101411
2016-04-14

Copper CHA zeolite catalysts

#120
20160067691
2016-03-10

Processes using molecular sieve SSZ-101

#121
20160001273
2016-01-07

Processes using molecular sieve SSZ-98

#122
20150375206
2015-12-31

Catalytic converter

#123
20150375204
2015-12-31

Catalytic converter

#124
20150375202
2015-12-31

Ceria-zirconia complex oxide material and method for producing same

#125
20150353368
2015-12-10

Processes using molecular sieve SSZ-100

#126
20150353367
2015-12-10

Processes using molecular sieve SSZ-99

#127
20150290622
2015-10-15

Catalyst carrier and exhaust gas purifying catalyst

#128
20150266002
2015-09-24

Compositions for passive NOadsorption (PNA) systems and methods of making and using same

#129
20150240752
2015-08-27

Exhaust system having NO catalyst in EGR circuit

#130
20150217275
2015-08-06

Exhaust gas purification catalyst, exhaust gas purification monolith catalyst, and method for producing exhaust gas purification catalyst

#131
20150202570
2015-07-23

Method for reducing the concentration of nitrogen dioxide

#132
20150182912
2015-07-02

Selective catalytic reduction processes using doped cerias

#133
20150151288
2015-06-04

SCR catalyst

#134
20150151287
2015-06-04

Mixed template synthesis of high silica Cu-CHA

#135
20150151250
2015-06-04

Catalyzed SCR filter and emission treatment method

#136
20150139897
2015-05-21

Copper CHA zeolite catalysts

#137
20150139883
2015-05-21

Ceria-supported metal catalysts for the selective reduction of NO

#138
20150132206
2015-05-14

Copper CHA zeolite catalysts

#139
20150104364
2015-04-16

Processes using molecular sieve SSZ-96

#140
20150030515
2015-01-29

Process and apparatus for treatment of gas streams containing nitrogen oxides

#141
20140370422
2014-12-18

Nanoparticles, nanosponges, methods of synthesis, and methods of use

#142
20140349841
2014-11-27

Catalyzed SCR filter and emission treatment system

#143
20140342902
2014-11-20

Production method of base metal catalyst for exhaust gas purification

#144
20140329669
2014-11-06

ALUMINA MATERIAL CONTAINING BARIUM SULFATE AND EXHAUST GAS PURIFYING CATALYST USING SAME

#145
20140328738
2014-11-06

Catalyst for Treating Exhaust Gas

#146
20140271452
2014-09-18

Stabilized metal-exchanged SAPO material

#147
20140206530
2014-07-24

Exhaust gas purification catalyst and method for producing it

#148
20140170032
2014-06-19

Metal filter for purifying exhaust gas from ship, and preparation method thereof

#149
20140147339
2014-05-29

Diesel oxidation catalyst aging level determination using NOsensor NOinterference

#150
20140128248
2014-05-08

Small crystal ferrierite and method of making the same

#151
20140127084
2014-05-08

Exhaust gas catalyst, method for the production of carrier, method for the production of exhaust gas catalyst, and apparatus for treating exhaust gas

#152
20140124992
2014-05-08

Zeolite structure and manufacturing method thereof

#153
20140113810
2014-04-24

Metal particles, exhaust gas purifying catalyst comprising metal particles, and methods for producing them

#154
20140072490
2014-03-13

Extruded SCR filter

#155
20140065042
2014-03-06

Three way catalyst comprising extruded solid body

#156
20140037523
2014-02-06

Zeolite catalyst containing metal

#157
20130343975
2013-12-26

Ammonia oxidation catalyst having low NO by-product formation

#158
20130266497
2013-10-10

Copper/chabazite-based catalyst with improved catalytic activity for reduction of nitrogen oxides

#159
20130251611
2013-09-26

Process for the production of metal doped zeolites and zeotypes and application of same to the catalytic remediation of nitrogen oxides

#160
20130236381
2013-09-12

Denitration catalyst composition and method of denitration using same

#161
20130177484
2013-07-11

Lean NOx type exhaust gas purifying catalyst

#162
20130142713
2013-06-06

Composition containing oxides of zirconium, cerium and at least one other rare earth and having a specific porosity, method for preparing same and use thereof in catalysis

#163
20130123096
2013-05-16

Organotemplate-free synthetic process for the production of a zeolitic material

#164
20130059723
2013-03-07

Synthesis of zeolitic materials using N,N-dimethyl organotemplates

#165
20130058841
2013-03-07

NOx REDUCTION CATALYST SYSTEM, AND NOx REDUCTION METHOD

#166
20130045860
2013-02-21

Organotemplate-free synthetic process for the production of a zeolitic material

#167
20130034484
2013-02-07

Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-28

#168
20130034483
2013-02-07

Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-25

#169
20130034482
2013-02-07

REDUCTION OF OXIDES OF NITROGEN IN A GAS STREAM USING MOLECULAR SIEVE SSZ-23

#170
20120321524
2012-12-20

NOslip catalyst

#171
20120275977
2012-11-01

CATALYSTS FOR TREATING TRANSIENT NOx EMISSIONS

#172
20120270729
2012-10-25

CATALYST FOR PURIFICATION OF NOx

#173
20120201731
2012-08-09

Zeolite catalyst containing metal

#174
20120180453
2012-07-19

Sulfur-tolerant perovskite NOoxidation catalysts

#175
20120129684
2012-05-24

USE OF A POROUS CRYSTALLINE HYBRID SOLID AS A NITROGEN OXIDE REDUCTION CATALYST AND DEVICES

#176
20120122660
2012-05-17

Oxidation catalyst

#177
20120121486
2012-05-17

Filter comprising combined soot oxidation and NH-SCR catalyst

#178
20120117953
2012-05-17

Three way catalyst comprising extruded solid body

#179
20120117952
2012-05-17

Extruded SCR filter

#180
20120110988
2012-05-10

NOabsorber catalysts

#181
20120087851
2012-04-12

P/S-TM-comprising zeolites for decomposition of NO

#182
20120040824
2012-02-16

Exhaust gas-purifying catalyst

#183
20120034133
2012-02-09

Catalyzed SCR filter and emission treatment system

#184
20120021222
2012-01-26

Carbon-encased metal nanoparticles and sponges as wood/plant preservatives or strengthening fillers

#185
20110268635
2011-11-03

SCR on low thermal mass filter substrates

#186
20110258994
2011-10-27

Bifunctional Catalyst for Decomposition and Oxidation of Nitrogen Monoxide, Composite Catalyst Including the Same for Apparatus to Decrease Exhaust Gas, and Method for Preparation Thereof

#187
20110237428
2011-09-29

EXHAUST GAS-PURIFYING CATALYST

#188
20110237423
2011-09-29

Zeolite structure and manufacturing method thereof

#189
20110236625
2011-09-29

Formed zeolite honeycomb article and fired zeolite honeycomb article

#190
20110236271
2011-09-29

Zeolite structure and manufacturing method thereof

#191
20110158877
2011-06-30

Method for the decomposition of NO, catalyst for it, and the preparation of this catalyst

#192
20110116983
2011-05-19

HONEYCOMB STRUCTURE AND EXHAUST GAS CONVERTER

#193
20100322847
2010-12-23

Organotemplate-free synthetic process for the production of a zeolitic material

#194
20100260652
2010-10-14

Catalyst for removing nitrogen oxides and method for removing nitrogen oxides using the same

#195
20100247396
2010-09-30

Selective Catalytic Reduction Filter and Method of Using Same

#196
20100224142
2010-09-09

Method of exhaust cleaning for internal combustion engine and exhaust cleaner

#197
20100196217
2010-08-05

APPLICATION OF BASIC EXCHANGE OS MATERIALS FOR LOWER TEMPERATURE CATALYTIC OXIDATION OF PARTICULATES

#198
20100186394
2010-07-29

Exhaust gas after treatment assembly

#199
20100122527
2010-05-20

Exhaust gas purification apparatus for internal combustion engine

#200
20100113262
2010-05-06

High heat-resistant catalyst and manufacturing method thereof

#201
20100004122
2010-01-07

Exhaust Gas-Purifying Catalyst

#202
20090291840
2009-11-26

HONEYCOMB STRUCTURE

#203
20090291834
2009-11-26

HONEYCOMB STRUCTURE

#204
20090291832
2009-11-26

HONEYCOMB STRUCTURE

#205
20090291253
2009-11-26

Honeycomb structure

#206
20090255241
2009-10-15

Method of forming a catalyzed selective catalytic reduction (SCR) filter

#207
20090241514
2009-10-01

CATALYTIC CONVERTER FOR THE TREATMENT OF COMBUSTION EXHAUST GASES

#208
20090239739
2009-09-24

Catalyst, exhaust gas purifying catalyst, and method of producing the catalyst

#209
20090209416
2009-08-20

EXHAUST GAS-PURIFYING CATALYST

#210
20090196811
2009-08-06

NOx REDUCTION CATALYST, NOx REDUCTION CATALYST SYSTEM, AND NOx REDUCTION METHOD

#211
20090098033
2009-04-16

Carbon-Encased Metal Nanoparticles and Sponges, Methods of Synthesis, and Methods of Use

#212
20090084091
2009-04-02

Exhaust purification device of an internal combustion engine

#213
20080286184
2008-11-20

Selective catalytic reduction type catalyst

#214
20080256936
2008-10-23

Selective Catalytic Reduction Filter and Method of Using Same

#215
20080213145
2008-09-04

Method of decomposing nitrogen dioxide

#216
20080202107
2008-08-28

SCR on low thermal mass filter substrates

#217
20080141661
2008-06-19

Zone coated filter, emission treatment systems and methods

#218
20080132405
2008-06-05

Catalyzed SCR filter and emission treatment system

#219
20080038174
2008-02-14

Nitrogen oxide removal catalyst system and nitrogen oxide removal method

#220
20070244001
2007-10-18

Catalyst, exhaust gas purification catalyst, and method for manufacturing same

#221
20070220873
2007-09-27

Process for the catalytic control of radial reaction

#222
20070169406
2007-07-26

Cerium organic colloidal dispersion and element selected from rhodium and palladium and use thereof as additive to diesel fuel for internal combustion engines

#223
20070137184
2007-06-21

Method of forming a catalyzed selective catalytic reduction filter

#224
20060263285
2006-11-23

Method of decomposing nitrogen dioxide

#225
20060115422
2006-06-01

Synthesis of amines boron-containing molecular sieve CHA

#226
20050152817
2005-07-14

System for treating gaseous streams using metamorphosed mineral compositions having internal lattice defects

#227
20050129599
2005-06-16

Ammonia storage and injection in NOx control

#228
20050031514
2005-02-10

Catalyzed SCR filter and emission treatment system

#229
15911905
2019-06-18

Low temperature hydrothermal method for the preparation of LaCOOH nanoparticles

#230
15605178
2018-09-11

CeO-NiO mixed oxide catalysts for direct NOx decomposition