ClassID:

30436

B01D2255/9022 - CPC Classification

Classification description:

Catalysts; Physical characteristics of catalysts; Multilayered catalyst Two layers

Recent Application in this class:
#1
20260138087
2026-05-21

NH3-SCR DENITRATION SYSTEM AND METHOD FOR SYNERGISTIC PURIFICATION OF CO

#2
20260124581
2026-05-07

Exhaust Gas Purifying Catalyst and Catalyst Body using the Same

#3
20260054220
2026-02-26

CATALYTIC DECOMPOSITION DEVICE AND INTEGRATED WASTE GAS TREATMENT SYSTEM

#4
20260008010
2026-01-08

EXHAUST GAS PURIFICATION CATALYST AND METHOD FOR PRODUCING THE SAME

#5
20250381524
2025-12-18

CATALYST BODY FOR PURIFYING EXHAUST GAS OF GASOLINE ENGINE, AND EXHAUST GAS PURIFICATION SYSTEM USING SAME

#6
20250367603
2025-12-04

TWO-LAYER, THREE-WAY CATALYST WITH SIGNIFICANTLY IMPROVED CO CONVERSION

#7
20250312739
2025-10-09

EXHAUST GAS SYSTEM FOR PREDOMINANTLY STOICHIOMETRICALLY OPERATED INTERNAL COMBUSTION ENGINES, COMPRISING A CATALYST FOR REDUCING AMMONIA EMISSIONS

#8
20250312738
2025-10-09

CATALYTIC ARTICLE COMPRISING AMMONIA OXIDATION CATALYST

#9
20250303396
2025-10-02

COMPOSITIONS FOR AND METHOD OF MAKING METHANE ABATEMENT CATALYSTS

#10
20250303365
2025-10-02

EXHAUST GAS PURIFICATION CATALYST

#11
20250276286
2025-09-04

Exhaust Gas Purifying Catalyst

#12
20250235852
2025-07-24

EXHAUST GAS PURIFICATION CATALYST

#13
20250235824
2025-07-24

EXHAUST GAS PURIFICATION CATALYST, METHOD FOR PURIFYING EXHAUST GAS, AND METHOD FOR PRODUCING EXHAUST GAS PURIFICATION CATALYST

#14
20250222436
2025-07-10

COMPOSITE CATALYST, AIR PURIFICATION DEVICE INCLUDING THE SAME, AND METHOD OF PREPARING THE COMPOSITE CATALYST

#15
20250214071
2025-07-03

LAYERED AND PARTITIONED CATALYST ARTICLE

#16
20250214010
2025-07-03

CERAMIC CATALYTIC FILTER, METHOD OF MANUFACTURING THE SAME, PLASMA-CATALYST COMPOSITE SYSTEM, AND AIR PURIFICATION SYSTEM INCLUDING THE PLASMA-CATALYST COMPOSITE SYSTEM

#17
20250196114
2025-06-19

SCR Zeolite Catalysts for Improved NOx Reduction

#18
20250186976
2025-06-12

Exhaust Gas Purifying Catalyst

#19
20250018384
2025-01-16

EXHAUST GAS PURIFICATION CATALYST DEVICE

#20
20250001405
2025-01-02

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

#21
20240424445
2024-12-26

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

#22
20240399353
2024-12-05

EXHAUST GAS PURIFICATION CATALYST

#23
20240392715
2024-11-28

Catalytic system comprising antimony-containing catalyst

#24
20240382942
2024-11-21

EXHAUST GAS PURIFICATION CATALYST

#25
20240375092
2024-11-14

ELECTRICALLY HEATED CATALYST DEVICE

#26
20240344473
2024-10-17

PARTICULATE FILTER HAVING PARTIALLY COATED CATALYTIC LAYER

#27
20240342655
2024-10-17

Catalytic Article for Ammonia Slip Removal From Diesel Exhaust Aftertreatment Systems With Low Weight and Faster Heating

#28
20240316496
2024-09-26

NOX ADSORBER DIESEL OXIDATION CATALYST

#29
20240269613
2024-08-15

TRANSITION METAL INCORPORATED ALUMINA FOR IMPROVED THREE WAY CATALYSTS

#30
20240269612
2024-08-15

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

#31
20240189771
2024-06-13

PLATINUM-CONTAINING THREE-WAY CATALYST FOR CLOSE-COUPLED ENGINE APPLICATION

#32
20240149251
2024-05-09

EXHAUST GAS PURIFICATION CATALYST COMPOSITION AND EXHAUST GAS PURIFICATION CATALYST

#33
20240066512
2024-02-29

Method of utilizing humic acid to prepare layered humic acid/manganese oxide composite catalyst and its method of use thereof

#34
20240024819
2024-01-25

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

#35
20240017245
2024-01-18

METHOD FOR PREPARING NOX STORAGE-REDUCTION CATALYST ARTICLE COMPRISING RUTHENIUM COMPOSITE, AND EXHAUST TREATMENT SYSTEM COMPRISING SAME

#36
20240001354
2024-01-04

Multifunctional catalyst for hydrocarbon oxidation and selective catalytic reduction of NOx

#37
20240001343
2024-01-04

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

#38
20240001299
2024-01-04

EXHAUST GAS PURIFICATION SYSTEM FOR STOICHIOMETRIC-COMBUSTION ENGINES

#39
20230405568
2023-12-21

ZONED CATALYTIC ARTICLE

#40
20230364552
2023-11-16

LOW-TEMPERATURE HYDROGEN OXIDATION SYSTEM

#41
20230356204
2023-11-09

BISMUT CONTAINING DIESELOXIDATION CATALYST

#42
20230338940
2023-10-26

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

#43
20230338939
2023-10-26

Diesel Oxidation Catalyst

#44
20230338938
2023-10-26

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

#45
20230330653
2023-10-19

THREE-WAY CONVERSION CATALYTIC ARTICLE

#46
20230330638
2023-10-19

LAYERED CATALYTIC ARTICLE AND PROCESS FOR PREPARING THE CATALYTIC ARTICLE

#47
20230330598
2023-10-19

Catalytic system for the treatment of an exhaust gas of a combustion engine

#48
20230302438
2023-09-28

Exhaust gas purification catalyst

#49
20230294078
2023-09-21

EXHAUST GAS PURIFICATION CATALYST

#50
20230294077
2023-09-21

METHOD OF PRODUCING CATALYST FOR EXHAUST GAS PURIFICATION

#51
20230285899
2023-09-14

Catalytically active particulate filter

#52
20230277986
2023-09-07

Exhaust Gas Purification Catalyst

#53
20230249159
2023-08-10

Exhaust gas purification catalyst

#54
20230249130
2023-08-10

METHOD AND SYSTEM FOR PRE-PURIFICATION OF A FEED AIR STREAM

#55
20230219064
2023-07-13

EXHAUST GAS EMISSIONS ABATEMENT SYSTEM

#56
20230201812
2023-06-29

AMMONIA ADSORPTION CATALYST AND PREPARATION METHOD AND USE THEREOF

#57
20230158453
2023-05-25

CATALYTIC DECOMPOSITION DEVICE AND INTEGRATED WASTE GAS TREATMENT SYSTEM

#58
20230147850
2023-05-11

AN EMISSION CONTROL CATALYST ARTICLE WITH PGM-GRADIENT ARCHITECTURE

#59
20230086873
2023-03-23

Exhaust gas control system and exhaust gas control method

#60
20230076536
2023-03-09

EXHAUST GAS PURIFICATION CATALYST DEVICE

#61
20230070493
2023-03-09

TWC CATALYSTS FOR GASOLINE ENGINE EXHAUST GAS TREATMENTS

#62
20230045409
2023-02-09

Double-layer three-way catalyst with further improved ageing stability

#63
20230042248
2023-02-09

Method and system for pre-purification of a feed gas stream

#64
20230016121
2023-01-19

Exhaust gas purification catalyst

#65
20220410133
2022-12-29

Low temperature NOadsorber with enhanced regeneration efficiency

#66
20220410129
2022-12-29

A CATALYST ARTICLE FOR CAPTURING PARTICULATE MATTER

#67
20220379293
2022-12-01

DIESEL OXIDATION CATALYST

#68
20220370997
2022-11-24

Exhaust gas purification device

#69
20220339606
2022-10-27

Methods for exhaust gas purification

#70
20220339581
2022-10-27

CATALYST FOR THE ABATEMENT OF AMMONIA AND NITROGEN OXIDE EMISSIONS FROM THE EXHAUST GASES OF COMBUSTION ENGINES

#71
20220323905
2022-10-13

Exhaust treatment system for ammonia-fueled vehicles

#72
20220316372
2022-10-06

Particulate filter

#73
20220256916
2022-08-18

WATER PIPE AND CATALYST UNIT FOR A WATER PIPE

#74
20220250044
2022-08-11

Manganese-containing diesel oxidation catalyst

#75
20220250037
2022-08-11

EXHAUST GAS PURIFICATION CATALYST DEVICE

#76
20220241761
2022-08-04

Coordinated emission control system including diesel oxidation catalyst and low temperature NOadsorber

#77
20220234032
2022-07-28

Manganese-containing diesel oxidation catalyst

#78
20220212178
2022-07-07

METAL OXIDE NANOPARTICLES BASED CATALYST AND METHOD OF MANUFACTURING AND USING THE SAME

#79
20220212170
2022-07-07

CATALYTIC ARTICLE AND METHOD OF MANUFACTURING THE CATALYTIC ARTICLE

#80
20220212169
2022-07-07

AUTOMOTIVE 3-WAY CATALYST SYSTEM CONTAINING A TAIL PIPE CATALYST

#81
20220205644
2022-06-30

System and method for controlling smoke during air frying in a range or oven

#82
20220203345
2022-06-30

AMMONIA OXIDATION CATALYST DEVICE

#83
20220203339
2022-06-30

LAYERED CATALYTIC ARTICLE AND METHOD OF MANUFACTURING THE CATALYTIC ARTICLE

#84
20220193638
2022-06-23

Exhaust gas purification catalyst

#85
20220176364
2022-06-09

CATALYTICALLY ACTIVE PARTICULATE FILTER

#86
20220161248
2022-05-26

Low temperature CO oxidation catalyst

#87
20220161236
2022-05-26

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

#88
20220152601
2022-05-19

Catalyst for reducing carbon monoxide and hydrocarbon, and method for preparing the same

#89
20220143539
2022-05-12

Glass or aluminum structure air filter using photocatalyst precoat and manufacturing method therefor

#90
20220134314
2022-05-05

Tri-metal PGM catalysts for gasoline engine exhaust gas treatments

#91
20220126280
2022-04-28

REGENERATED DENITRATION CATALYST AND METHOD FOR MANUFACTURING THE SAME, AND DENITRATION APPARATUS

#92
20220088575
2022-03-24

CATALYSTS FOR GASOLINE ENGINE EXHAUST GAS TREATMENTS AND THEIR NOVEL SYNTHESES

#93
20220080394
2022-03-17

Passive nitrogen oxide adsorber having oxidation-catalytically active function

#94
20220072514
2022-03-10

NOx ADSORBER CATALYST

#95
20220062869
2022-03-03

CATALYST FOR EXHAUST GAS PURIFICATION, METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFICATION METHOD USING SAME

#96
20220055021
2022-02-24

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

#97
20220054976
2022-02-24

Method and system for pre-purification of a feed gas stream

#98
20220023847
2022-01-27

Catalyst for exhaust gas oxidation, method for producing same, and exhaust gas oxidation method using same

#99
20220010714
2022-01-13

Nitrous oxide removal catalysts for exhaust systems

#100
20210387170
2021-12-16

Exhaust treatment system including nickel-containing catalyst

#101
20210379566
2021-12-09

Diesel engine exhaust gas purification catalyst, production method therefor, and exhaust gas purification method using the same

#102
20210346878
2021-11-11

Three-zone two-layer TWC catalyst in gasoline waste gas applications

#103
20210346842
2021-11-11

Low temperature nitrogen oxide adsorber

#104
20210331142
2021-10-28

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

#105
20210299643
2021-09-30

Ammonia slip catalyst with in-situ PT fixing

#106
20210299638
2021-09-30

Exhaust gas purification catalyst, exhaust gas purification method, and production method for exhaust gas purification catalyst

#107
20210283580
2021-09-16

TWC system for fuel cut NOcontrol

#108
20210229079
2021-07-29

Selective catalytic reduction articles and systems

#109
20210229078
2021-07-29

Combination of Pseudobrookite Oxide and Low Loading of PGM as High Sulfur-Resistant Catalyst for Diesel Oxidation Applications

#110
20210213434
2021-07-15

Diesel oxidation catalysts for ultralow NOcontrol

#111
20210162344
2021-06-03

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

#112
20210101139
2021-04-08

Three-zone two-layer TWC catalyst in gasoline waste gas applications

#113
20210086135
2021-03-25

Catalytically active particulate filter

#114
20210079822
2021-03-18

Catalytically active particulate filter

#115
20210069688
2021-03-11

Catalytic article and exhaust gas treatment systems

#116
20210069678
2021-03-11

Single-layer 3-way catalytic converter

#117
20210023542
2021-01-28

Integrated catalyst system for stoichiometric-burn natural gas vehicles and preparation method therefor

#118
20210016257
2021-01-21

Exhaust treatment system including nickel-containing catalyst

#119
20200391186
2020-12-17

EXHAUST GAS CLEANING CATALYST, EXHAUST GAS CLEANING METHOD, AND EXHAUST GAS CLEANING SYSTEM

#120
20200384446
2020-12-10

Phosphorus compound-containing exhaust gas purifying catalyst

#121
20200376467
2020-12-03

EXHAUST GAS PURIFICATION CATALYST DEVICE

#122
20200346166
2020-11-05

Catalyst article, method and use

#123
20200340383
2020-10-29

EXHAUST GAS PURIFICATION CATALYST

#124
20200306693
2020-10-01

Multi-layer three-way catalytic converter

#125
20200290019
2020-09-17

Exhaust gas purification catalyst

#126
20200282385
2020-09-10

Lean NOtrap catalyst

#127
20200276567
2020-09-03

EXHAUST GAS PURIFICATION CATALYST

#128
20200232366
2020-07-23

Nitrous oxide removal catalysts for exhaust systems

#129
20200222883
2020-07-16

Honeycomb catalytic converter

#130
20200222882
2020-07-16

Honeycomb catalytic converter

#131
20200215520
2020-07-09

ASC with platinum group metal in multiple layers

#132
20200206721
2020-07-02

Oxidation catalyst for a compression ignition engine

#133
20200188887
2020-06-18

Transition metal doped alumina for improved TWC performance

#134
20200173324
2020-06-04

Methods and systems for a diesel oxidation catalyst

#135
20200131960
2020-04-30

CATALYTIC DEVICE AND EXHAUST GAS PURIFICATION SYSTEM

#136
20200129962
2020-04-30

Exhaust gas purification catalyst and exhaust gas purification method using the same

#137
20200108373
2020-04-09

SELECTIVE CATALYTIC REDUCTION ARTICLES AND SYSTEMS

#138
20200095915
2020-03-26

Multicomponent exhaust treatment system including an oxygen storage catalyst

#139
20200070133
2020-03-05

Bimetallic Cu/Mn catalysts for selective catalytic reduction

#140
20200070092
2020-03-05

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

#141
20200032687
2020-01-30

MULTI-LAYER NITROGEN OXIDE STORAGE CATALYST WITH MANGANESE

#142
20200030780
2020-01-30

Exhaust gas purification catalyst

#143
20200030745
2020-01-30

CATALYST FOR REDUCTION OF NITROGEN OXIDES

#144
20200016571
2020-01-16

Passive NOadsorber

#145
20200001280
2020-01-02

CATALYST COMBINING PLATINUM GROUP METAL WITH COPPER-ALUMINA SPINEL

#146
20190376435
2019-12-12

System for the removal of particulate matter and noxious compounds from engine exhaust gas

#147
20190376434
2019-12-12

System for the removal of particulate matter and noxious compounds from engine exhaust gas

#148
20190358616
2019-11-28

Oxidation catalyst for internal combustion engine exhaust gas treatment

#149
20190358615
2019-11-28

CATALYST COMPOSITIONS

#150
20190353068
2019-11-21

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

#151
20190351398
2019-11-21

Hydrocarbon trap catalyst

#152
20190351394
2019-11-21

Three-way catalyst

#153
20190351393
2019-11-21

Hydrocarbon trap catalyst

#154
20190321782
2019-10-24

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

#155
20190314801
2019-10-17

SCR catalyst device containing vanadium oxide and molecular sieve containing iron

#156
20190314795
2019-10-17

Tetra-functional catalyst for the oxidation of NO, the oxidation of a hydrocarbon, the oxidation of NH3 and the selective catalytic reduction of NO

#157
20190314791
2019-10-17

Diesel oxidizing catalytic converter

#158
20190314761
2019-10-17

Three-way catalyst for purifying gasoline engine exhaust gas

#159
20190308173
2019-10-10

Zoned diesel oxidation catalyst

#160
20190301334
2019-10-03

Catalyst article for use in an emission treatment system

#161
20190299161
2019-10-03

Passive NOx adsorber

#162
20190299160
2019-10-03

NH3 OVERDOSING-TOLERANT SCR CATALYST

#163
20190299159
2019-10-03

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

#164
20190299139
2019-10-03

Exhaust gas purification filter

#165
20190291083
2019-09-26

Exhaust gas purification catalyst for internal combustion engine, and exhaust gas purifying method using exhaust gas purification catalyst

#166
20190283011
2019-09-19

Ammonia slip catalyst with in-situ PT fixing

#167
20190262809
2019-08-29

Manganese-containing diesel oxidation catalyst

#168
20190262772
2019-08-29

Diesel oxidation catalyst and exhaust system

#169
20190255485
2019-08-22

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

#170
20190232258
2019-08-01

Catalyst for purification of exhaust gas from internal combustion engine and method for purification of exhaust gas using the catalyst

#171
20190217269
2019-07-18

PASSIVE NOX ADSORBER

#172
20190203625
2019-07-04

Particle filter having SCR-active coating

#173
20190201845
2019-07-04

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

#174
20190201844
2019-07-04

Oxidation catalyst for a diesel engine exhaust

#175
20190193057
2019-06-27

Exhaust gas purifying catalyst

#176
20190193024
2019-06-27

Oxidation catalyst for a diesel engine exhaust

#177
20190176129
2019-06-13

NOtrap

#178
20190170042
2019-06-06

Selective catalytic reduction articles and systems

#179
20190168200
2019-06-06

Passive NOx adsorber

#180
20190168199
2019-06-06

Selective catalytic reduction articles and systems

#181
20190168189
2019-06-06

Catalysed substrate monolith

#182
20190162095
2019-05-30

Three-zone diesel oxidation catlayst

#183
20190160427
2019-05-30

CORE/SHELL CATALYST PARTICLES AND METHOD OF MANUFACTURE

#184
20190151829
2019-05-23

Exhaust gas purification underfloor catalyst and catalyst system

#185
20190143311
2019-05-16

CATALYST FOR LEAN BURN

#186
20190126248
2019-05-02

EXHAUST GAS PURIFYING CATALYST

#187
20190105637
2019-04-11

Exhaust gas purification catalyst

#188
20190083932
2019-03-21

Exhaust gas purifying catalyst

#189
20190083931
2019-03-21

Exhaust gas purification catalyst

#190
20190015820
2019-01-17

Exhaust gas purification device

#191
20190009263
2019-01-10

Method of applying a multilayer wet-on-wet coating to a substrate

#192
20190001268
2019-01-03

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

#193
20180361360
2018-12-20

Catalyst system for lean gasoline direct injection engines

#194
20180353903
2018-12-13

Diesel oxidation catalyst and exhaust system

#195
20180353902
2018-12-13

Diesel oxidation catalyst and exhaust system

#196
20180333677
2018-11-22

Multi-layer catalyst composition for internal combustion engines

#197
20180318805
2018-11-08

Diesel oxidation catalyst combining platinum group metal with base metal oxide

#198
20180318801
2018-11-08

NOx ADSORBER CATALYST

#199
20180318800
2018-11-08

NOx ADSORBER CATALYST

#200
20180311646
2018-11-01

NOx ADSORBER CATALYST

#201
20180304244
2018-10-25

PASSIVE NOx ADSORBER

#202
20180298801
2018-10-18

Extruded honeycomb catalyst

#203
20180283251
2018-10-04

Two-stage catalyst for removal of NOfrom exhaust gas stream

#204
20180283250
2018-10-04

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

#205
20180280945
2018-10-04

ASC with platinum group metal in multiple layers

#206
20180280877
2018-10-04

SCR with turbo and ASC/DOC close-coupled system

#207
20180280876
2018-10-04

ASC/DEC with rear-concentrated exotherm generation

#208
20180274415
2018-09-27

Methods and systems for a diesel oxidation catalyst

#209
20180274413
2018-09-27

Methods and systems for a diesel oxidation catalyst

#210
20180264446
2018-09-20

Catalytic wall-flow filter with an ammonia slip catalyst

#211
20180258810
2018-09-13

Exhaust gas purifying catalyst

#212
20180257062
2018-09-13

Oxidation catalyst for a compression ignition engine

#213
20180250661
2018-09-06

Method for the simultaneous removal of carbon monoxide and nitrogen oxides from flue or exhaust gas

#214
20180243733
2018-08-30

Honeycomb catalyst for removal of nitrogen oxides in flue and exhaust gasses and method of preparation thereof

#215
20180243690
2018-08-30

Exhaust gas purification catalyst

#216
20180229224
2018-08-16

Exhaust gas treatment catalysts

#217
20180223714
2018-08-09

Device for catalytic conversion having a reduced activation time

#218
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

#219
20180221857
2018-08-09

Catalytic module

#220
20180221855
2018-08-09

Catalyst for purifying the exhaust gases of diesel engines

#221
20180214824
2018-08-02

Diesel oxidation catalyst

#222
20180200700
2018-07-19

Catalyst Design for Heavy-Duty Diesel Combustion Engines

#223
20180195428
2018-07-12

System for the removal of particulate matter and noxious compounds from engine exhaust gas

#224
20180193797
2018-07-12

THREE WAY CATALYST HAVING AN NH3-SCR ACTIVITY, AN AMMONIA OXIDATION ACTIVITY AND AN ADSORPTION CAPACITY FOR VOLATILE VANADIUM AND TUNGSTEN COMPOUNDS

#225
20180178198
2018-06-28

Layered automotive catalyst composites

#226
20180169624
2018-06-21

NOx ADSORBER CATALYST

#227
20180147530
2018-05-31

NHoverdosing-tolerant SCR catalyst

#228
20180111089
2018-04-26

Multifunctional filters for diesel emission control

#229
20180111088
2018-04-26

Multifunctional filters for diesel emission control

#230
20180111086
2018-04-26

HYDROCARBON INJECTION THROUGH SMALL PORE CU-ZEOLITE CATALYST

#231
20180106175
2018-04-19

Exhaust gas purification catalyst

#232
20180106174
2018-04-19

Exhaust gas purification catalyst

#233
20180104679
2018-04-19

Exhaust gas purification catalyst

#234
20180104677
2018-04-19

Oxidation catalyst for internal combustion engine exhaust gas treatment

#235
20180080359
2018-03-22

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

#236
20180078926
2018-03-22

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

#237
20180078900
2018-03-22

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

#238
20180078898
2018-03-22

Oxidation catalyst for hydrocarbons produced by an internal combustion engine

#239
20180066554
2018-03-08

Exhaust system with a modified lean NOx trap

#240
20180065113
2018-03-08

NOtrap

#241
20180065111
2018-03-08

Catalyst for purifying exhaust gas

#242
20180065086
2018-03-08

DIESEL OXIDATION CATALYST WITH NOX ADSORBER ACTIVITY

#243
20180065085
2018-03-08

DIESEL OXIDATION CATALYST AND EXHAUST SYSTEM

#244
20180065084
2018-03-08

DIESEL OXIDATION CATALYST AND EXHAUST SYSTEM

#245
20180056276
2018-03-01

Catalytic converters with age-suppressing catalysts

#246
20180056239
2018-03-01

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

#247
20180043336
2018-02-15

Lean NOtrap with enhanced high and low temperature performance

#248
20180030870
2018-02-01

METHOD OF MANUFACTURING CATALYZED PARTICULATE FILTER

#249
20180023444
2018-01-25

Exhaust gas cleaning catalyst

#250
20180021767
2018-01-25

Exhaust gas purification catalyst

#251
20180021726
2018-01-25

Exhaust gas purification catalyst

#252
20180015446
2018-01-18

Oxidation catalyst for a stoichiometric natural gas engine

#253
20180001306
2018-01-04

Zoned diesel oxidation catalyst

#254
20170368536
2017-12-28

Double-layer three-way catalyst with improved aging stability

#255
20170362984
2017-12-21

Nitrous oxide removal catalysts for exhaust systems

#256
20170348674
2017-12-07

Exhaust gas purifying catalyst

#257
20170333883
2017-11-23

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

#258
20170328250
2017-11-16

Application of synergized-PGM with ultra-low PGM loadings as close-coupled three-way catalysts for internal combustion engines

#259
20170328249
2017-11-16

Application of synergized-PGM with ultra-low PGM loadings as underfloor three-way catalysts for internal combustion engines

#260
20170320048
2017-11-09

Integrated LNT-TWC catalyst

#261
20170320046
2017-11-09

NOadsorber catalyst

#262
20170312691
2017-11-02

EXHAUST GAS PURIFICATION CATALYST FOR INTERNAL COMBUSTION ENGINE

#263
20170312690
2017-11-02

Exhaust gas purification catalyst for internal combustion engine

#264
20170306823
2017-10-26

Exhaust gas purification catalyst

#265
20170297005
2017-10-19

Exhaust gas purification catalyst

#266
20170296968
2017-10-19

Catalytic converter

#267
20170292427
2017-10-12

Exhaust gas purification catalyst

#268
20170282166
2017-10-05

Multiple zeolite hydrocarbon traps

#269
20170276044
2017-09-28

After-treatment system

#270
20170274358
2017-09-28

Catalysed substrate monolith

#271
20170241313
2017-08-24

Emissions treatment system with ammonia-generating and SCR catalysts

#272
20170232425
2017-08-17

Exhaust gas purifying catalyst

#273
20170218809
2017-08-03

Catalyst system for reducing nitrogen oxides

#274
20170216822
2017-08-03

Oxidation catalyst for a compression ignition engine

#275
20170197179
2017-07-13

Catalyst for internal combustion engine exhaust gas purification, and system for same

#276
20170189854
2017-07-06

Ammonia slip catalyst

#277
20170183995
2017-06-29

Catalyst for reduction of nitrogen oxides

#278
20170167338
2017-06-15

THREE-WAY CATALYTIC CONVERTER USING NANOPARTICLES

#279
20170165653
2017-06-15

Catalyst design for heavy-duty diesel combustion engines

#280
20170157564
2017-06-08

Dual-layer catalyst

#281
20170151532
2017-06-01

Diesel oxidation catalyst having a capture region for exhaust gas impurities

#282
20170128922
2017-05-11

Cold Start Catalyst and Its Use in Exhaust Systems

#283
20170122158
2017-05-04

Diesel particulate filter coated with selective catalytic reduction and exhaust gas aftertreatment system including the same

#284
20170113206
2017-04-27

Exhaust gas purification device

#285
20170106337
2017-04-20

Oxidation catalyst for a diesel engine exhaust

#286
20170095805
2017-04-06

Passive NOadsorber

#287
20170095796
2017-04-06

Low-temperature oxidation catalysts

#288
20170095795
2017-04-06

Catalytic converters with age-suppressing catalysts

#289
20170087541
2017-03-30

Zoned ammonia slip catalyst for use in combustion turbines

#290
20170087512
2017-03-30

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

#291
20170021336
2017-01-26

Method for preparing catalyst composition for exhaust gas after-treatment

#292
20170014806
2017-01-19

Exhaust gas purification catalyst

#293
20170014766
2017-01-19

Catalyst system for gasoline combustion engines, having three-way catalysts and SCR catalyst

#294
20170009623
2017-01-12

Nitrogen oxides (NOx) storage catalyst

#295
20170001177
2017-01-05

Catalyst for ammonia oxidation

#296
20170001169
2017-01-05

PASSIVE NOx ADSORBER

#297
20160367975
2016-12-22

AMMONIA SLIP CATALYST WITH LOW N2O FORMATION

#298
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

#299
20160367963
2016-12-22

Hydrocarbon trap with increased zeolite loading and improved adsorption capacity

#300
20160367941
2016-12-22

Zoned exhaust system