ClassID:

30523

B01D2258/014 - CPC Classification

Classification description:

Sources of waste gases; Engine exhaust gases Stoichiometric gasoline engines

Recent Application in this class:
#1
20260084140
2026-03-26

METHOD FOR THE MANUFACTURE OF A CATALYTIC GASOLINE PARTICULATE FILTER

#2
20260054260
2026-02-26

CATALYZED PARTICULATE FILTER AND METHOD FOR PRODUCING THE SAME

#3
20260014520
2026-01-15

PLATINUM PARTITIONING IN CATALYST ARTICLE FOR THREE-WAY CATALYSIS

#4
20250381524
2025-12-18

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

#5
20250367603
2025-12-04

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

#6
20250312739
2025-10-09

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

#7
20250050318
2025-02-13

RHODIUM-FREE TWC CATALYTIC ARTICLE

#8
20240408543
2024-12-12

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

#9
20240342654
2024-10-17

PARTICULATE FILTER

#10
20240316497
2024-09-26

EXHAUST GAS PURIFYING CATALYST

#11
20240293805
2024-09-05

INDUCTIVELY HEATED NOX ADSORBER

#12
20240269612
2024-08-15

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

#13
20240189771
2024-06-13

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

#14
20240149257
2024-05-09

PARTICLE FILTER FOR EXHAUST GAS OF GASOLINE ENGINES

#15
20240110496
2024-04-04

Ohmic Heating-type Exhaust Gas Purification Catalyst System and Exhaust Gas Purification Method

#16
20240100478
2024-03-28

CATALYTICALLY ACTIVE PARTICLE FILTER WITH A HIGH DEGREE OF FILTERING EFFICIENCY

#17
20240058791
2024-02-22

PLATINUM GROUP METAL CATALYST COMPOSITION FOR TWC APPLICATION

#18
20240033687
2024-02-01

CATALYTICALLY ACTIVE PARTICLE FILTER WITH A HIGH DEGREE OF FILTERING EFFICIENCY

#19
20240001299
2024-01-04

EXHAUST GAS PURIFICATION SYSTEM FOR STOICHIOMETRIC-COMBUSTION ENGINES

#20
20230372902
2023-11-23

TIN CO-DOPED MIXED OXIDES FOR USE IN THREE WAY CATALYSIS

#21
20230285899
2023-09-14

Catalytically active particulate filter

#22
20230271167
2023-08-31

CATALYST ARTICLE HAVING HIGH LOCAL RHODIUM CONCENTRATION

#23
20220118405
2022-04-21

Monometallic rhodium-containing four-way conversion catalysts for gasoline engine emissions treatment systems

#24
20210379529
2021-12-09

Exhaust gas purification system for a gasoline engine

#25
20210113962
2021-04-22

Pollutant treatment process and apparatus

#26
20210086135
2021-03-25

Catalytically active particulate filter

#27
20210079822
2021-03-18

Catalytically active particulate filter

#28
20210069678
2021-03-11

Single-layer 3-way catalytic converter

#29
20200306693
2020-10-01

Multi-layer three-way catalytic converter

#30
20200188894
2020-06-18

Chabazite zeolite catalysts having low silica to alumina ratios

#31
20190292960
2019-09-26

Method and device for purifying exhaust gas

#32
20190271246
2019-09-05

Exhaust purification system of internal combustion engine

#33
20190232223
2019-08-01

EXHAUST GAS TREATMENT APPARATUS

#34
20190168161
2019-06-06

Monometallic rhodium-containing four-way conversion catalysts for gasoline engine emissions treatment systems

#35
20190168159
2019-06-06

Pollutant treatment process and apparatus

#36
20190093531
2019-03-28

Exhaust gas purification catalyst

#37
20190083932
2019-03-21

Exhaust gas purifying catalyst

#38
20190083931
2019-03-21

Exhaust gas purification catalyst

#39
20190039049
2019-02-07

Ceria-zirconia-based composite oxide oxygen storage material, exhaust gas cleaning catalyst, and honeycomb structure for exhaust gas cleaning

#40
20180347425
2018-12-06

Exhaust purification system of internal combustion engine

#41
20180318804
2018-11-08

Highly active and thermally stable coated gasoline particulate filters

#42
20180311647
2018-11-01

Three layer NOadsorber catalyst

#43
20180266289
2018-09-20

Exhaust purification filter

#44
20180229224
2018-08-16

Exhaust gas treatment catalysts

#45
20180038252
2018-02-08

Exhaust gas treatment system

#46
20170356361
2017-12-14

Control apparatus for naturally aspirated gasoline engine

#47
20170348674
2017-12-07

Exhaust gas purifying catalyst

#48
20170304772
2017-10-26

Exhaust gas purification device

#49
20170014766
2017-01-19

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

#50
20160339389
2016-11-24

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

#51
20160263526
2016-09-15

Synergized PGM close-coupled catalysts for TWC applications

#52
20160256854
2016-09-08

Catalytic converter

#53
20160243501
2016-08-25

Filter substrate comprising three-way catalyst

#54
20160199815
2016-07-14

Exhaust cleaning catalyst

#55
20160076419
2016-03-17

Systems and methods for reducing emissions in exhaust of vehicles and producing electricity

#56
20160074855
2016-03-17

Three-way catalytic converter using nanoparticles

#57
20160074836
2016-03-17

Exhaust gas purifying catalyst

#58
20160067690
2016-03-10

Exhaust gas purification catalyst and production method thereof

#59
20160059216
2016-03-03

Three-way catalytic converter using nanoparticles

#60
20150337711
2015-11-26

Catalytic converter apparatus

#61
20150238951
2015-08-27

Exhaust gas catalyst

#62
20150125371
2015-05-07

Three-way-catalyst system

#63
20150111729
2015-04-23

Exhaust gas treatment catalyst

#64
20150111727
2015-04-23

Catalyst composition for exhaust gas purification and exhaust gas purifying catalyst for automobiles

#65
20150093300
2015-04-02

Method and system using a filter for treating exhaust gas having particulate matter

#66
20150087504
2015-03-26

Palladium catalyst

#67
20150087503
2015-03-26

Exhaust gas purification catalyst

#68
20150086786
2015-03-26

Beta zeolite and method for producing same

#69
20150023854
2015-01-22

Exhaust gas post-processing apparatus and control method thereof

#70
20140322113
2014-10-30

Filter substrate comprising zone-coated catalyst washcoat

#71
20140322112
2014-10-30

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

#72
20140301924
2014-10-09

Filter substrate comprising three-way catalyst

#73
20140274676
2014-09-18

Catalytic article with segregated washcoat and methods of making same

#74
20140235434
2014-08-21

Exhaust gas purification catalyst and method for producing the same

#75
20140205523
2014-07-24

Automotive catalyst composites having a two-metal layer

#76
20140140909
2014-05-22

Three-way catalytic converter using nanoparticles

#77
20140099246
2014-04-10

Catalytic converter apparatus

#78
20140079611
2014-03-20

B-type iron silicate composition and method for reducing nitrogen oxides

#79
20140072491
2014-03-13

Catalytic converter apparatus

#80
20140044626
2014-02-13

Filter substrate comprising three-way catalyst

#81
20130330259
2013-12-12

Method and system using a filter for treating exhaust gas having particulate matter

#82
20130327024
2013-12-12

Direct densification method and system utilizing waste heat for on-board recovery and storage of COfrom motor vehicle internal combustion engine exhaust gases

#83
20130287660
2013-10-31

Three-way catalyst having an upstream single-layer catalyst

#84
20130189173
2013-07-25

Lean HC conversion of TWC for lean burn gasoline engines

#85
20130164201
2013-06-27

Composition based on cerium, zirconium and tungsten, preparation process and use in catalysis

#86
20130058848
2013-03-07

Three-way catalyst having a upstream multi-layer catalyst

#87
20130029838
2013-01-31

Exhaust gas purifying catalyst

#88
20130028819
2013-01-31

CATALYTIC CONVERTER APPARATUS

#89
20130004392
2013-01-03

Assembly and method for reducing nitrogen oxides, carbon monoxide, hydrocarbons and hydrogen gas in exhausts of internal combustion engines and producing an electrical output

#90
20120302430
2012-11-29

Method of producing noble metal-supported powder, noble metal-supported powder and exhaust gas purifying catalyst

#91
20120295787
2012-11-22

EXHAUST GAS PURIFYING CATALYST

#92
20120275978
2012-11-01

System for reducing NOx in exhaust

#93
20120196743
2012-08-02

OXIDATION CATALYST, REDUCTION CATALYST, AND CATALYST FOR PURGING EXHAUST GAS

#94
20120190534
2012-07-26

Zeolite beta and process for producing the same

#95
20120128558
2012-05-24

Three-way catalyst having an upstream multi-layer catalyst

#96
20120128557
2012-05-24

Three-way catalyst having an upstream single-layer catalyst

#97
20120107203
2012-05-03

Method and system using a filter for treating exhaust gas having particulate matter

#98
20120094827
2012-04-19

EXHAUST GAS-PURIFYING CATALYST AND METHOD OF PRODUCING SAME

#99
20120042639
2012-02-23

MULTI-ENGINE SYSTEM WITH ON-BOARD AMMONIA PRODUCTION

#100
20120042636
2012-02-23

EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE

#101
20110301025
2011-12-08

Exhaust gas purification catalyst

#102
20110287928
2011-11-24

Low level noble metal-supporting three-way catalyst

#103
20110274603
2011-11-10

EXHAUST GAS PURIFICATION CATALYST, EXHAUST GAS PURIFICATION APPARATUS USING THE SAME AND EXHAUST GAS PURIFICATION METHOD

#104
20110271658
2011-11-10

Nitrogen oxide storage catalytic converter for use in a motor vehicle in a close-coupled position

#105
20110232266
2011-09-29

GASOLINE ENGINE WITH AN EXHAUST SYSTEM FOR COMBUSTING PARTICULATE MATTER

#106
20110232243
2011-09-29

Mounting mat and pollution control device with the same

#107
20110217216
2011-09-08

Carbon monoxide conversion catalyst

#108
20110192141
2011-08-11

EXHAUST SYSTEM COMPONENT HAVING A COMBINATION OF A HEAT EXCHANGER AND A CATALYTIC CONVERTER, MOTOR VEHICLE HAVING THE COMPONENT AND METHOD OF OPERATING THE COMPONENT

#109
20110185711
2011-08-04

TEXTURED PARTICULATE FILTER FOR CATALYTIC APPLICATIONS

#110
20110177939
2011-07-21

Exhaust gas purifying catalyst

#111
20110165045
2011-07-07

Exhaust gas purification catalyst and method for purifying exhaust gas by using same

#112
20110150731
2011-06-23

Catalyst composition for selective catalytic reduction of exhaust gases

#113
20110120094
2011-05-26

Method of regenerating an exhaust gas purification filter, and vaporizer

#114
20110120089
2011-05-26

Exhaust particulate management for gasoline-fueled engines

#115
20110111952
2011-05-12

Exhaust gas purifying catalyst and method for producing the same

#116
20110047975
2011-03-03

HONEYCOMB STRUCTURE-TYPE CATALYST FOR PURIFYING EXHAUST GAS EXHAUSTED FROM AUTOMOBILE, METHOD FOR PRODUCING THE SAME AND METHOD FOR PURIFYING EXHAUST GAS USING THE SAME CATALYST

#117
20110045968
2011-02-24

Exhaust gas purification catalyst

#118
20110027155
2011-02-03

Catalyst for purifying exhaust gas from internal combustion engine and process for purifying exhaust gas using the same

#119
20110023465
2011-02-03

EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE

#120
20110020204
2011-01-27

Chabazite zeolite catalysts having low silica to alumina ratios

#121
20110020201
2011-01-27

Oxygen storage catalyst with decreased ceria reduction temperature

#122
20110000191
2011-01-06

EXHAUST GAS TREATMENT SYSTEM AND METHOD

#123
20100304965
2010-12-02

Ceramic articles and methods of producing ceramic articles

#124
20100287917
2010-11-18

EXHAUST PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE

#125
20100287916
2010-11-18

Purification structure incorporating a biased electrochemical catalyst system

#126
20100284875
2010-11-11

Treatment of power utilities exhaust

#127
20100275584
2010-11-04

Exhaust gas purification device for internal combustion engine

#128
20100261602
2010-10-14

Method of producing noble metal-supported powder, noble metal-supported powder and exhaust gas purifying catalyst

#129
20100242458
2010-09-30

Exhaust gas cleaner

#130
20100233045
2010-09-16

Sulfur tolerant perovskite supported catalysts

#131
20100229533
2010-09-16

Perovskite-type compounds for use in lean NOtraps

#132
20100229531
2010-09-16

Apparatus, system, and method for controlling reductant dosing in an SCR catalyst system

#133
20100229530
2010-09-16

Control device and control method for exhaust gas purification apparatus, and internal combustion engine exhaust gas purification apparatus

#134
20100212293
2010-08-26

Palladium-supported catalyst composites

#135
20100189615
2010-07-29

Mechanically fused materials for pollution abatement in mobile and stationary sources

#136
20100186394
2010-07-29

Exhaust gas after treatment assembly

#137
20100183490
2010-07-22

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

#138
20100150790
2010-06-17

Catalyzing Lean NOx Filter and Method of Using Same

#139
20100101212
2010-04-29

Exhaust gas purifying method

#140
20100098612
2010-04-22

Method and architecture for reducing NOX and particulate matter emissions in exhaust gas from hydrocarbon fuel source with a fuel lean combustion mixture

#141
20100086467
2010-04-08

Release of stored ammonia at start-up

#142
20100077737
2010-04-01

System for reducing NOx in exhaust

#143
20100075839
2010-03-25

EXHAUST GAS PURIFICATION CATALYST FOR INTERNAL COMBUSTION ENGINE

#144
20100061903
2010-03-11

Catalyst system to be used in automobile exhaust gas purification apparatus, exhaust gas purification apparatus using the same and exhaust gas purification method

#145
20100061900
2010-03-11

Exhaust-gas converting filter and production process for the same

#146
20100050874
2010-03-04

Exhaust after treatment system and method

#147
20100050610
2010-03-04

EXHAUST GAS PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE

#148
20100050598
2010-03-04

Catalytic converter apparatus

#149
20100048383
2010-02-25

Close coupled catalyst for purification of exhaust gas and the preparation thereof

#150
20100031636
2010-02-11

Exhaust emission purification control device for internal combustion engine

#151
20100028228
2010-02-04

Current storage estimation for selective catalytic reduction catalysts

#152
20100024400
2010-02-04

EMISSION CONTROL SYSTEM AND METHOD

#153
20100024397
2010-02-04

Apparatus, system, and method for reducing NOemissions from an engine system

#154
20100024393
2010-02-04

Apparatus, system, and method for NOx signal correction in feedback controls of an SCR system

#155
20100024390
2010-02-04

Apparatus, system, and method for reducing NOemissions on an SCR catalyst

#156
20100024389
2010-02-04

Nitrogen oxide estimation downstream of a selective catalytic reduction catalyst

#157
20100018190
2010-01-28

Particulate filter regenerating system

#158
20100004122
2010-01-07

Exhaust Gas-Purifying Catalyst

#159
20100000202
2010-01-07

Dual catalyst NOx reduction system for exhaust from lean burn internal combustion engines

#160
20090298673
2009-12-03

EXHAUST GAS PURIFICATION CATALYST

#161
20090277163
2009-11-12

Exhaust gas purification device

#162
20090272102
2009-11-05

Apparatus, system, and method for reducing NOemissions on an SCR catalyst

#163
20090269265
2009-10-29

Exhaust gas purification method using selective reduction catalyst

#164
20090246100
2009-10-01

Exhaust gas purification device for internal combustion engine

#165
20090199546
2009-08-13

Device for reducing dibenzodioxin emissions, dibenzofuran emissions and particle emissions

#166
20090199545
2009-08-13

Apparatus for reducing dibenzodioxin emissions and dibenzofuran emissions from transition metal-containing catalyzers

#167
20090194741
2009-08-06

Exhaust system having a carbon oxide catalyst

#168
20090183496
2009-07-23

EXHAUST GAS PURIFYING APPARATUS

#169
20090176053
2009-07-09

Honeycomb structure, honeycomb catalytic body and manufacturing method of the same

#170
20090165439
2009-07-02

EXHAUST GAS TREATMENT SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

#171
20090162922
2009-06-25

DIESEL EXHAUST GAS SCRUBBING METHOD FOR CARBON DIOXIDE REMOVAL

#172
20090151339
2009-06-18

Method and arrangement for improving the hydrolysis of a reduction agent in an exhaust gas post treatment system

#173
20090145117
2009-06-11

Exhaust gas aftertreatment system

#174
20090087365
2009-04-02

Removal of particulates from the exhaust gas of internal combustion engines operated with a predominantly stoichiometric air/fuel mixture

#175
20090082194
2009-03-26

Adsorber unit for volatile hydrocarbons comprising an adsorber material made from an iron-containing molecular sieve

#176
20090041637
2009-02-12

Catalyst-supported particulate filter

#177
20090038297
2009-02-12

Ceramic Catalyst for NOx Oxidation and NOx Conversion in Emission Control Systems

#178
20090023580
2009-01-22

Catalyst Composition

#179
20090011177
2009-01-08

Exhaust gas cleaning catalyst and process for producing the same

#180
20080302093
2008-12-11

MULTI-ENGINE SYSTEM WITH ON-BOARD AMMONIA PRODUCTION

#181
20080269046
2008-10-30

EXHAUST GAS PURIFICATION CATALYST AND MANUFACTURING METHOD THEREOF

#182
20080241032
2008-10-02

Catalyzing Lean NOx Filter and Method of Using Same

#183
20080087489
2008-04-17

Process for producing a fleece having metallic wire filaments, process for producing honeycomb body having at least one fleece, fleece, honeycomb body, apparatus and vehicle

#184
20070264518
2007-11-15

Exhaust gas cleaning catalyst with an axially varying precious metal concentration and processes for making the catalyst

#185
20070220871
2007-09-27

Method and apparatus for filtration of a two-stroke engine exhaust

#186
20070129241
2007-06-07

Exhaust gas catalyst composition

#187
20070086934
2007-04-19

Reformer system and method reforming

#188
20070014705
2007-01-18

High phosphorous poisoning resistant catalysts for treating automobile exhaust

#189
20060185352
2006-08-24

Exhaust system for a lean-burn ic engine

#190
20060105909
2006-05-18

Vehicle sulfur oxide trap and related method

#191
20050059547
2005-03-17

Cerium-zirconium composite metal oxide

#192
20050031513
2005-02-10

Gasoline engine with an exhaust system for combusting particulate matter