ClassID:

30440

B01D2255/9032 - CPC Classification

Classification description:

Catalysts; Physical characteristics of catalysts; Multi-zoned catalysts Two zones

Recent Application in this class:
#1
20260124581
2026-05-07

Exhaust Gas Purifying Catalyst and Catalyst Body using the Same

#2
20260102739
2026-04-16

CATALYST FOR THE TREATMENT OF AN EXHAUST GAS STREAM CONTAINING ONE OR MORE OF FORMALDEHYDE, NITROGEN OXIDE (NO), AND HYDROCARBONS COMPRISING MN SUPPORTED ON A CUO-AL2O3 MIXED OXIDE

#3
20260042061
2026-02-12

CATALYST BODY AND EXHAUST GAS AFTERTREATMENT SYSTEM

#4
20260014520
2026-01-15

PLATINUM PARTITIONING IN CATALYST ARTICLE FOR THREE-WAY CATALYSIS

#5
20250360499
2025-11-27

A DIESEL OXIDATION CATALYST AND A METHOD FOR ITS MANUFACTURE

#6
20250288980
2025-09-18

COMPOSITE, ZONED OXIDATION CATALYST FOR A COMPRESSION IGNITION INTERNAL COMBUSTION ENGINE

#7
20250083102
2025-03-13

EXHAUST GAS PURIFICATION CATALYST

#8
20250050318
2025-02-13

RHODIUM-FREE TWC CATALYTIC ARTICLE

#9
20250041839
2025-02-06

CATALYTICALLY ACTIVE PARTICLE FILTER WITH A HIGH DEGREE OF FILTRATION EFFICIENCY

#10
20250041801
2025-02-06

Enhancement of the DeNOx SCR Performances of Vanadium-Based SCR Catalysts by Using Washcoats With Different Vanadium Contents

#11
20250032983
2025-01-30

MANGANESE-CONTAINING CATALYTIC ARTICLES, EXHAUST GAS TREATMENT SYSTEMS, AND METHODS

#12
20240424445
2024-12-26

ZONED THREE-WAY CONVERSION CATALYSTS COMPRISING PLATINUM, PALLADIUM, AND RHODIUM

#13
20240399353
2024-12-05

EXHAUST GAS PURIFICATION CATALYST

#14
20240375092
2024-11-14

ELECTRICALLY HEATED CATALYST DEVICE

#15
20240316497
2024-09-26

EXHAUST GAS PURIFYING CATALYST

#16
20240269612
2024-08-15

SULFUR-CONTAINING ORGANIC COMPOUND ASSISTED METAL NANOPARTICLE SYNTHESIS FOR THREE-WAY CATALYSIS APPLICATION

#17
20240269611
2024-08-15

SCR CATALYST ARTICLE AND SYSTEMS FOR REDUCING N2O IN EXHAUST GAS

#18
20240238772
2024-07-18

COATINGS ON A MONOLITH ARTICLE

#19
20240216864
2024-07-04

A CATALYST FOR THE SELECTIVE CATALYTIC REDUCTION OF NOX AND FOR THE CRACKING AND CONVERSION OF A HYDROCARBON

#20
20240173709
2024-05-30

COATINGS ON A MONOLITH ARTICLE

#21
20240149260
2024-05-09

EXHAUST GAS PURIFICATION DEVICE

#22
20240123403
2024-04-18

CATALYST FOR THE ABATEMENT OF AMMONIA FROM THE EXHAUST OF GASOLINE INTERNAL COMBUSTION ENGINES

#23
20240109055
2024-04-04

Transition metal incorporated alumina for improved three way catalysts

#24
20240091751
2024-03-21

COPPER CHA ZEOLITE CATALYSTS

#25
20240042385
2024-02-08

GAS TREATMENT SYSTEM, SEMICONDUCTOR PROCESS SYSTEM INCLUDING THE SAME, AND GAS TREATMENT METHOD USING THE SAME

#26
20240024819
2024-01-25

Catalytic Devices for the Abatement of NH3 and Nox Emissions From Internal Combustion Engines

#27
20240017246
2024-01-18

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

#28
20240009621
2024-01-11

Exhaust Gas Purification Catalyst

#29
20240001343
2024-01-04

PLATINUM ENRICHED MULTI-REGION CATALYSTS FOR CNG ENGINE EXHAUST GAS TREATMENTS

#30
20230405569
2023-12-21

EXHAUST GAS PURIFICATION CATALYST

#31
20230405568
2023-12-21

ZONED CATALYTIC ARTICLE

#32
20230356204
2023-11-09

BISMUT CONTAINING DIESELOXIDATION CATALYST

#33
20230347326
2023-11-02

METHOD OF TREATING EXHAUST GAS AND SYSTEM FOR SAME

#34
20230338940
2023-10-26

PERFORMANCE ENHANCEMENT OF A PLATINUM-CONTAINING CATALYST VIA EXHAUST GAS HYDROGEN ENRICHMENT

#35
20230338939
2023-10-26

Diesel Oxidation Catalyst

#36
20230338938
2023-10-26

EMISSION CONTROL CATALYST ARTICLE WITH ENRICHED PGM ZONE, METHOD AND APPARATUS TO PRODUCE THE SAME

#37
20230330638
2023-10-19

LAYERED CATALYTIC ARTICLE AND PROCESS FOR PREPARING THE CATALYTIC ARTICLE

#38
20230323802
2023-10-12

EXHAUST GAS TREATMENT SYSTEM

#39
20230321602
2023-10-12

CATALYTIC FILTERS FOR HYDROGENATION AND EMISSIONS CONTROL

#40
20230278018
2023-09-07

COMPOSITE, ZONED OXIDATION CATALYST FOR A COMPRESSION IGNITION INTERNAL COMBUSTION ENGINE

#41
20230250747
2023-08-10

Accelerated catalyst reactivation control strategy for gasoline vehicle emissions system in conjunction with N2 selective catalyst to minimize NOX remake

#42
20230249158
2023-08-10

THREE-WAY CATALYTIC CONVERSION SYSTEM FOR PURIFICATION TREATMENT OF ENGINE EXHAUST GAS AND USE THEREOF

#43
20230249129
2023-08-10

Flameless catalytic thermal oxidation device

#44
20230219039
2023-07-13

EXHAUST GAS TREATMENT SYSTEM COMPRISING A MULTIFUNCTIONAL CATALYST

#45
20230158454
2023-05-25

Oxidation catalyst with phosphorus trap

#46
20230147850
2023-05-11

AN EMISSION CONTROL CATALYST ARTICLE WITH PGM-GRADIENT ARCHITECTURE

#47
20230143941
2023-05-11

CATALYSTS FOR GASOLINE EXHAUST GAS TREATMENTS WITH IMPROVED AMMONIA EMISSION CONTROL

#48
20230129815
2023-04-27

A SELECTIVE CATALYTIC REDUCTION CATALYST AND A PROCESS FOR PREPARING A SELECTIVE CATALYTIC REDUCTION CATALYST

#49
20230104565
2023-04-06

LAYERED ZONE-COATED DIESEL OXIDATION CATALYSTS FOR IMPROVED CO/HC CONVERSION AND NO OXIDATION

#50
20230081351
2023-03-16

Copper CHA zeolite catalysts

#51
20230070493
2023-03-09

TWC CATALYSTS FOR GASOLINE ENGINE EXHAUST GAS TREATMENTS

#52
20230070291
2023-03-09

Transition metal incorporated alumina for improved three way catalysts

#53
20230029275
2023-01-26

EXHAUST GAS PURIFICATION CATALYST

#54
20230016121
2023-01-19

Exhaust gas purification catalyst

#55
20220410133
2022-12-29

Low temperature NOadsorber with enhanced regeneration efficiency

#56
20220379293
2022-12-01

DIESEL OXIDATION CATALYST

#57
20220362712
2022-11-17

Flameless catalytic thermal oxidation device

#58
20220347661
2022-11-03

Zeolite with Cu and Pd co-exchanged in a composite

#59
20220341359
2022-10-27

Accelerated catalyst reactivation control strategy for gasoline vehicle emissions system in conjunction with N2 selective catalyst to minimize NOX remake

#60
20220323905
2022-10-13

Exhaust treatment system for ammonia-fueled vehicles

#61
20220203345
2022-06-30

AMMONIA OXIDATION CATALYST DEVICE

#62
20220176353
2022-06-09

Exhaust gas purification catalyst

#63
20220161236
2022-05-26

LAYERED TRI-METALLIC CATALYTIC ARTICLE AND METHOD OF MANUFACTURING THE CATALYTIC ARTICLE

#64
20220152600
2022-05-19

Catalyst for Adsorbing Hydrocarbon and Hydrocarbon Trap Comprising the Same

#65
20220134314
2022-05-05

Tri-metal PGM catalysts for gasoline engine exhaust gas treatments

#66
20220105494
2022-04-07

CATALYST FOR PURIFYING EXHAUST GAS

#67
20220055021
2022-02-24

LAYERED THREE-WAY CONVERSION (TWC) CATALYST AND METHOD OF MANUFACURING THE CATALYST

#68
20220010714
2022-01-13

Nitrous oxide removal catalysts for exhaust systems

#69
20210404357
2021-12-30

PARTICLE FILTER WITH A PLURALITY OF COATINGS

#70
20210379530
2021-12-09

Selective catalytic reduction catalyst on a filter substrate

#71
20210331142
2021-10-28

Multi-region catalysts for CNG engine exhaust gas treatments with improved ammonia leakage control

#72
20210283589
2021-09-16

Exhaust gas purification device

#73
20210213434
2021-07-15

Diesel oxidation catalysts for ultralow NOcontrol

#74
20210170063
2021-06-10

Air treatment method

#75
20210162344
2021-06-03

Single brick SCR/ASC/PNA/DOC close-coupled catalyst

#76
20210146305
2021-05-20

Combined soot filter and urea hydrolysis

#77
20210102486
2021-04-08

Hydrogen-assisted integrated emission control system

#78
20210001315
2021-01-07

Exhaust gas purification device

#79
20200282385
2020-09-10

Lean NOtrap catalyst

#80
20200261895
2020-08-20

Copper CHA zeolite catalysts

#81
20200232366
2020-07-23

Nitrous oxide removal catalysts for exhaust systems

#82
20200222881
2020-07-16

Honeycomb catalytic converter

#83
20200215520
2020-07-09

ASC with platinum group metal in multiple layers

#84
20200206721
2020-07-02

Oxidation catalyst for a compression ignition engine

#85
20200173324
2020-06-04

Methods and systems for a diesel oxidation catalyst

#86
20200070133
2020-03-05

Bimetallic Cu/Mn catalysts for selective catalytic reduction

#87
20200070092
2020-03-05

PGM catalyst coupled with a non-PGM catalyst with HC oxidation capability

#88
20200016571
2020-01-16

Passive NOadsorber

#89
20200001280
2020-01-02

CATALYST COMBINING PLATINUM GROUP METAL WITH COPPER-ALUMINA SPINEL

#90
20190353068
2019-11-21

Exhaust emission reduction system having an HC-trap and NOx-trap combination designed for operating under strategic lean conditions

#91
20190351398
2019-11-21

Hydrocarbon trap catalyst

#92
20190351394
2019-11-21

Three-way catalyst

#93
20190351393
2019-11-21

Hydrocarbon trap catalyst

#94
20190345859
2019-11-14

Passive NOadsorber

#95
20190321782
2019-10-24

Method for the Cleaning of Exhaust Gas from a Compression Ignition Engine

#96
20190314801
2019-10-17

SCR catalyst device containing vanadium oxide and molecular sieve containing iron

#97
20190314791
2019-10-17

Diesel oxidizing catalytic converter

#98
20190299161
2019-10-03

Passive NOx adsorber

#99
20190299159
2019-10-03

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

#100
20190283011
2019-09-19

Ammonia slip catalyst with in-situ PT fixing

#101
20190262772
2019-08-29

Diesel oxidation catalyst and exhaust system

#102
20190255485
2019-08-22

Oxidation catalyst for treating the exhaust gas of a compression ignition engine

#103
20190240371
2019-08-08

Air treatment method

#104
20190240370
2019-08-08

Air treatment system and method of use

#105
20190217269
2019-07-18

PASSIVE NOX ADSORBER

#106
20190201845
2019-07-04

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

#107
20190201844
2019-07-04

Oxidation catalyst for a diesel engine exhaust

#108
20190193057
2019-06-27

Exhaust gas purifying catalyst

#109
20190193024
2019-06-27

Oxidation catalyst for a diesel engine exhaust

#110
20190170042
2019-06-06

Selective catalytic reduction articles and systems

#111
20190168199
2019-06-06

Selective catalytic reduction articles and systems

#112
20190120109
2019-04-25

Passive nitrogen oxide adsorber catalyst

#113
20190120104
2019-04-25

Exhaust gas purification device

#114
20190105650
2019-04-11

CATALYST HAVING SCR-ACTIVE COATING

#115
20190093531
2019-03-28

Exhaust gas purification catalyst

#116
20190083932
2019-03-21

Exhaust gas purifying catalyst

#117
20190060885
2019-02-28

PARTICLE FILTER HAVING SCR-ACTIVE COATING

#118
20190060833
2019-02-28

Zoned configuration for oxidation catalyst combinations

#119
20190009213
2019-01-10

EXHAUST GAS TREATMENT SYSTEM

#120
20190001318
2019-01-03

METHOD FOR THE PREPARATION OF A ZONE COATED CATALYSED MONOLITH

#121
20190001268
2019-01-03

Single brick SCR/ASC/PNA/DOC close-coupled catalyst

#122
20180361360
2018-12-20

Catalyst system for lean gasoline direct injection engines

#123
20180353905
2018-12-13

Catalyzed filters with end coating for lean engine exhaust

#124
20180353903
2018-12-13

Diesel oxidation catalyst and exhaust system

#125
20180353902
2018-12-13

Diesel oxidation catalyst and exhaust system

#126
20180304244
2018-10-25

PASSIVE NOx ADSORBER

#127
20180283251
2018-10-04

Two-stage catalyst for removal of NOfrom exhaust gas stream

#128
20180283250
2018-10-04

Platinum group metal and base metal on a molecular sieve for PNA-SCR-ASC close-coupled system

#129
20180280945
2018-10-04

ASC with platinum group metal in multiple layers

#130
20180280879
2018-10-04

Catalyst article for use in an emission treatment system

#131
20180280877
2018-10-04

SCR with turbo and ASC/DOC close-coupled system

#132
20180280876
2018-10-04

ASC/DEC with rear-concentrated exotherm generation

#133
20180274415
2018-09-27

Methods and systems for a diesel oxidation catalyst

#134
20180274413
2018-09-27

Methods and systems for a diesel oxidation catalyst

#135
20180266290
2018-09-20

REAR ON-WALL DESIGN SCRF

#136
20180264446
2018-09-20

Catalytic wall-flow filter with an ammonia slip catalyst

#137
20180257062
2018-09-13

Oxidation catalyst for a compression ignition engine

#138
20180252132
2018-09-06

Exhaust gas purification catalyst

#139
20180243690
2018-08-30

Exhaust gas purification catalyst

#140
20180236402
2018-08-23

Ion exchanged synthetic phyllosilicate as SCR catalyst

#141
20180229224
2018-08-16

Exhaust gas treatment catalysts

#142
20180221860
2018-08-09

Exhaust system without a DOC having an ASC acting as a DOC in a system with an SCR catalyst before the ASC

#143
20180221855
2018-08-09

Catalyst for purifying the exhaust gases of diesel engines

#144
20180214824
2018-08-02

Diesel oxidation catalyst

#145
20180178198
2018-06-28

Layered automotive catalyst composites

#146
20180163597
2018-06-14

Exhaust gas treatment system

#147
20180163596
2018-06-14

Catalyzed soot filter for use in passive selective catalytic reduction

#148
20180141031
2018-05-24

MULTI-ZONED SYNERGIZED-PGM CATALYSTS FOR TWC APPLICATIONS

#149
20180133702
2018-05-17

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

#150
20180111089
2018-04-26

Multifunctional filters for diesel emission control

#151
20180111086
2018-04-26

HYDROCARBON INJECTION THROUGH SMALL PORE CU-ZEOLITE CATALYST

#152
20180106172
2018-04-19

Exhaust purification apparatus for internal combustion engine

#153
20180080359
2018-03-22

SCR diesel particle filter with oxidation catalyst and oxygen storage catalyst loadings, and exhaust system including the same

#154
20180078926
2018-03-22

RUTHENIUM SUPPORTED ON SUPPORTS HAVING A RUTILE PHASE AS STABLE CATALYSTS FOR NH3-SLIP APPLICATIONS

#155
20180078900
2018-03-22

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

#156
20180078898
2018-03-22

Oxidation catalyst for hydrocarbons produced by an internal combustion engine

#157
20180066554
2018-03-08

Exhaust system with a modified lean NOx trap

#158
20180065086
2018-03-08

DIESEL OXIDATION CATALYST WITH NOX ADSORBER ACTIVITY

#159
20180065085
2018-03-08

DIESEL OXIDATION CATALYST AND EXHAUST SYSTEM

#160
20180065084
2018-03-08

DIESEL OXIDATION CATALYST AND EXHAUST SYSTEM

#161
20180065083
2018-03-08

DIESEL OXIDATION CATALYST WITH NOX ADSORBER ACTIVITY

#162
20180056281
2018-03-01

Copper CHA zeolite catalysts

#163
20180056239
2018-03-01

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

#164
20180043305
2018-02-15

Exhaust gas treatment system

#165
20180023444
2018-01-25

Exhaust gas cleaning catalyst

#166
20180015446
2018-01-18

Oxidation catalyst for a stoichiometric natural gas engine

#167
20180015411
2018-01-18

Exhaust gas cleaning catalyst

#168
20180008964
2018-01-11

Catalyzed ceramic candle filter and method for cleaning of off- or exhaust gases

#169
20180001308
2018-01-04

Exhaust gas purification apparatus

#170
20170368541
2017-12-28

Molecular sieve catalyst compositions, catalyst composites, systems, and methods

#171
20170362984
2017-12-21

Nitrous oxide removal catalysts for exhaust systems

#172
20170333883
2017-11-23

Mixed metal large crystal molecular sieve catalyst compositions, catalytic articles, systems and methods

#173
20170314438
2017-11-02

Exhaust System

#174
20170312740
2017-11-02

Phosphorus tolerant catalyst washcoat structure

#175
20170312690
2017-11-02

Exhaust gas purification catalyst for internal combustion engine

#176
20170296969
2017-10-19

Exhaust gas purification device

#177
20170296968
2017-10-19

Catalytic converter

#178
20170276049
2017-09-28

Honeycomb structure, and manufacturing method of honeycomb structure

#179
20170266644
2017-09-21

Exhaust gas purification catalyst

#180
20170232429
2017-08-17

Honeycomb structure

#181
20170226910
2017-08-10

Electrically heated catalyst

#182
20170216822
2017-08-03

Oxidation catalyst for a compression ignition engine

#183
20170209857
2017-07-27

Catalysts for treating transient NOemissions

#184
20170209849
2017-07-27

Catalyst and method for preparing a catalyst

#185
20170189892
2017-07-06

LAYERED CATALYSTS FOR GASOLINE ENGINE EXHAUST

#186
20170122175
2017-05-04

SCR exhaust aftertreatment apparatus, system and methods including multiple washcoat formulations

#187
20170120192
2017-05-04

Oxidation catalyst

#188
20170107878
2017-04-20

Exhaust system

#189
20170106337
2017-04-20

Oxidation catalyst for a diesel engine exhaust

#190
20170087512
2017-03-30

Oxidation catalyst for treating the exhaust gas of a compression ignition engine

#191
20170043322
2017-02-16

NOx TRAP

#192
20170021338
2017-01-26

Catalyzed soot filter

#193
20170014806
2017-01-19

Exhaust gas purification catalyst

#194
20170001169
2017-01-05

PASSIVE NOx ADSORBER

#195
20160367974
2016-12-22

Exhaust system without a DOC having an ASC acting as a DOC in a system with an SCR catalyst before the ASC

#196
20160367941
2016-12-22

Zoned exhaust system

#197
20160346733
2016-12-01

Method for the cleaning of exhaust gas from a compression ignition engine

#198
20160341091
2016-11-24

Emissions reduction system

#199
20160339389
2016-11-24

Diesel oxidation catalyst and use thereof in diesel and advanced combustion diesel engine systems

#200
20160310897
2016-10-27

Exhaust gas purification apparatus

#201
20160288107
2016-10-06

ALUMINOSILICATE OR SILICOALUMINOPHOSPHATE MOLECULAR SIEVE/ MANGANESE OCTAHEDRAL MOLECULAR SIEVE AS CATALYSTS FOR TREATING EXHAUST GAS

#202
20160288096
2016-10-06

EXHAUST GAS CONTROL CATALYST

#203
20160279620
2016-09-29

Exhaust gas control catalyst

#204
20160279610
2016-09-29

ZONED DIESEL OXIDATION CATALYST

#205
20160279571
2016-09-29

Exhaust gas purification material

#206
20160273427
2016-09-22

Exhaust system for a compression ignition engine having a capture face for volatilised platinum

#207
20160263524
2016-09-15

Process for removing sulfur compounds from a gas with hydrogenation and direct oxidation steps

#208
20160256854
2016-09-08

Catalytic converter

#209
20160243501
2016-08-25

Filter substrate comprising three-way catalyst

#210
20160236148
2016-08-18

ZONED CATALYTIC CONVERTERS FOR GASOLINE ENGINES WITH REDUCED RHODIUM CONTENT

#211
20160236147
2016-08-18

Oxidation catalyst for treating a natural gas emission

#212
20160199816
2016-07-14

Exhaust cleaning catalyst

#213
20160199815
2016-07-14

Exhaust cleaning catalyst

#214
20160167022
2016-06-16

Oxidation catalyst for a compression ignition engine

#215
20160158700
2016-06-09

Zeolite promoted silver based catalyst for NOx storage

#216
20160158699
2016-06-09

Zoned catalyst system for reducing NO emissions

#217
20160151764
2016-06-02

Exhaust gas purifying catalyst

#218
20160121267
2016-05-05

Three-way catalytic converter

#219
20160121266
2016-05-05

Exhaust gas purification system and exhaust gas purification method

#220
20160101412
2016-04-14

Copper CHA zeolite catalysts

#221
20160101411
2016-04-14

Copper CHA zeolite catalysts

#222
20160067653
2016-03-10

Honeycomb filter

#223
20160047286
2016-02-18

Exhaust system with a modified lean NOtrap

#224
20160045868
2016-02-18

Zoned catalyst for treating exhaust gas

#225
20160008759
2016-01-14

Catalytic article for treating exhaust gas

#226
20160001228
2016-01-07

Perovskite with an ovlerlayer SCR component as an ammonia oxidation catalyst and a system for exhaust emission control on diesel engines

#227
20150375204
2015-12-31

Catalytic converter

#228
20150367337
2015-12-24

Molecular sieve catalyst compositions, catalytic composites, systems, and methods

#229
20150367336
2015-12-24

Molecular sieve catalyst compositions, catalyst composites, systems, and methods

#230
20150360213
2015-12-17

Oxidation catalyst for a compression ignition engine

#231
20150352523
2015-12-10

Catalytic converter

#232
20150352493
2015-12-10

Catalytic articles containing platinum group metals and non-platinum group metals and methods of making and using same

#233
20150352492
2015-12-10

Non-PGM ammonia slip catalyst

#234
20150321181
2015-11-12

Methods for treating engine exhaust

#235
20150298098
2015-10-22

Zoned catalyst composites

#236
20150298059
2015-10-22

Catalysed soot filter for treating the exhaust gas of a compression ignition engine

#237
20150273452
2015-10-01

DIESEL OXIDATION CATALYST WITH NOx ADSORBER ACTIVITY

#238
20150252708
2015-09-10

Zoned catalysed substrate monolith

#239
20150224478
2015-08-13

Oxidation catalyst for treating the exhaust gas of a compression ignition engine

#240
20150202611
2015-07-23

Diesel oxidation catalyst and exhaust system

#241
20150202600
2015-07-23

Diesel oxidation catalyst and exhaust system

#242
20150202572
2015-07-23

Diesel oxidation catalyst and exhaust system

#243
20150139897
2015-05-21

Copper CHA zeolite catalysts

#244
20150132206
2015-05-14

Copper CHA zeolite catalysts

#245
20150113966
2015-04-30

Aftertreatment systems with reduced NO generation

#246
20150098870
2015-04-09

Selective catalytic reduction catalyst

#247
20140322113
2014-10-30

Filter substrate comprising zone-coated catalyst washcoat

#248
20140322112
2014-10-30

Positive ignition engine and exhaust system comprising catalysed zone-coated filter substrate

#249
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Filter substrate comprising three-way catalyst

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Selective catalytic reduction catalyst system

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Selective catalytic reduction catalyst system

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Zoned catalyst for diesel applications

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Selective catalytic reduction catalyst system

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Exhaust gas purifier

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Catalysed soot filter

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Ammonia oxidation catalyst

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Filter substrate comprising three-way catalyst

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Catalytic converter for the selective catalytic reduction of nitrogen oxides in the exhaust gas of diesel engines

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EXHAUST SYSTEM HAVING AN AFTERTREATMENT MODULE

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Double layered exhaust gas purification catalyst

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Selective catalytic reduction system and process for control of NOemissions in a sulfur-containing gas stream

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Catalyst for removing nitrogen oxides from the exhaust gas of diesel engines

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Automotive catalytic aftertreatment system

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Exhaust purification system of internal combustion engine

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SCR control system utilizing a differential NHand NOmeasurement using an exhaust gas sensor coupled with a micro SCR catalyst

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System for remediating emissions and method of use

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Multi-Component and Layered Formulations for Enhanced Selective Catalytic Reduction Activity

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ENGINE EXHAUST CATALYSTS DOPED WITH BISMUTH OR MANGANESE

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Exhaust gas after-treatment device and method of use

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Oxidation catalysts for engines producing low temperature exhaust streams

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Catalyzed soot filter with layered design

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CATALYSTS FOR TREATING TRANSIENT NOx EMISSIONS

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Exhaust-gas purification catalytic system

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Zoned catalytic filters for treatment of exhaust gas

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Perovskite oxide compounds for use in exhaust aftertreatment systems

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Coated perovskite-based catalysts, catalyst combinations and methods of treating a gas stream

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Honeycomb filter

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EXHAUST GAS PURIFYING CATALYST

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PGM-Zoned Catalyst for Selective Oxidation of Ammonia in Diesel Systems

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SCR on low thermal mass filter substrates

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Diesel exhaust gas purification catalyst and diesel exhaust gas purification system

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Catalyst assembly for treating engine exhaust

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System for remediating emissions and method of use

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NOx TRAP

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Exhaust gas purifying device

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Method for refining dilution air and dilution air refinery

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HONEYCOMB STRUCTURE AND EXHAUST GAS CONVERTER

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Exhaust gas purifying catalyst

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EXHASUT GAS PURIFYING CATALYST

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Four-way diesel catalysts and methods of use

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Catalyst combinations and methods and systems for oxidizing nitric oxide in a gas stream

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PARTIAL COATING OF PLATINUM GROUP METALS ON FILTER FOR INCREASED SOOT MASS LIMIT AND REDUCED COSTS

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High Pd content diesel oxidation catalysts with improved hydrothermal durability

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Emissions treatment system with lean NOx trap

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Diesel oxidation catalyst and use thereof in diesel and advanced combustion diesel engine systems

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Compact diesel engine exhaust treatment system

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EXHAUST GAS PURIFICATION DEVICE

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SCR on low thermal mass filter substrates

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Exhaust gas purifying catalyst