Patents-Review.com
ClassID:

137996 ⎘

F01N2250/12 - CPC Classification

Classification description:

Combinations of different methods of purification absorption or adsorption, and catalytic conversion

Recent Application in this class:
#1
20250270947
2025-08-28

PURIFICATION SYSTEM

 #2
20250198322
2025-06-19

DUAL LEG AFTERTREATMENT SYSTEM

 #3
20250186968
2025-06-12

ADSORBENT, ITS PREPARATION AND USE

 #4
20240418112
2024-12-19

Method for Operating an Internal Combustion Engine, a System for Carrying Out the Method and an Internal Combustion Engine

 #5
20240200481
2024-06-20

Exhaust after-treatment in heavy-duty motor vehicles

 #6
20240159180
2024-05-16

Dual leg aftertreatment system

 #7
20230392532
2023-12-07

Exhaust after-treatment in heavy-duty motor vehicles

 #8
20230330598
2023-10-19

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

 #9
20230149903
2023-05-18

Ethylene degradation catalyst and preparation method and use thereof

 #10
20230130261
2023-04-27

PLATINUM AND ZINC-CONTAINING ZEOLITE

 #11
20230003150
2023-01-05

Lean NOtrap plus low temperature NOadsorber system for low temperature NOtrapping

 #12
20220403793
2022-12-22

Internal combustion engine with exhaust gas aftertreatment and control of the nitrogen oxide emissions

 #13
20220362753
2022-11-17

Catalytic composition

 #14
20220282652
2022-09-08

Apparatus and method for controlling a vehicle action

 #15
20220178288
2022-06-09

Systems and methods for determining amount of reductant deposits in aftertreatment systems

 #16
20220161226
2022-05-26

Hydrocarbon adsorption and desorption complex comprising zeolite with controlled cation ratio and preparation method therefor

 #17
20220136419
2022-05-05

Exhaust gas purification device for internal combustion engine, and vehicle

 #18
20220106897
2022-04-07

PROCESS FOR REMOVING NITROGEN OXIDES FROM A GAS

 #19
20210404365
2021-12-30

Systems and methods for dry chemical reductant insertion in aftertreatment systems

 #20
20210370280
2021-12-02

Aluminosilicate zeolite intergrowths

 #21
20210301697
2021-09-30

Control device for internal combustion engine

 #22
20210277814
2021-09-09

Exhaust gas purification catalyst

 #23
20210239020
2021-08-05

Catalyst for exhaust gas purification

 #24
20210198114
2021-07-01

Process for preparing a zeolitic material having a framework type FER

 #25
20210197171
2021-07-01

Nitrogen oxide sorbent and exhaust gas cleaning catalyst

 #26
20210171357
2021-06-10

CHA zeolite material and related method of synthesis

 #27
20210162344
2021-06-03

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

 #28
20210114007
2021-04-22

MIXED ZEOLITE-CONTAINING SCR CATALYST

 #29
20210095589
2021-04-01

Exhaust gas purification apparatus

 #30
20210079826
2021-03-18

Exhaust gas treatment system with upstream SCR catalyst

 #31
20210062697
2021-03-04

Vehicle

 #32
20200376433
2020-12-03

Palladium oxide supported on spinels for NOx storage

 #33
20200291839
2020-09-17

Methods and systems for exhaust emission control

 #34
20200263620
2020-08-20

Resistive switching memory with replacement metal electrode

 #35
20200122086
2020-04-23

Emission control system

 #36
20200055035
2020-02-20

EXHAUST GAS TREATMENT CATALYST FOR ABATEMENT OF NITROGEN OXIDES

 #37
20190383183
2019-12-19

AFTERTREATMENT SYSTEM WITH LEAN NOx TRAP FILTER

 #38
20190376424
2019-12-12

In-exhaust electrical element for NOx storage catalyst and SCR systems

 #39
20190368402
2019-12-05

Aftertreatment architecture for internal combustion engine

 #40
20190242314
2019-08-08

Methods and systems for an exhaust gas treatment arrangement

 #41
20190217278
2019-07-18

OXIDATION CATALYST FOR A DIESEL ENGINE EXHAUST

 #42
20190195103
2019-06-27

Exhaust gas purification apparatus for an internal combustion engine

 #43
20190195102
2019-06-27

Exhaust gas purification apparatus for an internal combustion engine

 #44
20190186316
2019-06-20

Exhaust gas purification apparatus for internal combustion engine

 #45
20190153921
2019-05-23

Ruthenium impregnated ceria catalyst

 #46
20190063292
2019-02-28

Variable-position mixer for an exhaust gas after-treatment system

 #47
20190001268
2019-01-03

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

 #48
20180073413
2018-03-15

NOx occlusion amount estimating device and NOx occlusion amount estimating method

 #49
20180058286
2018-03-01

METHOD AND APPARATUS TO MINIMIZE DEACTIVATION OF A LOW TEMPERATURE NOx ADSORBER IN AN EXHAUST AFTERTREATMENT SYSTEM

 #50
20170292423
2017-10-12

Exhaust purification control device for internal combustion engine

 #51
20170226905
2017-08-10

NOx storage reduction catalyst

 #52
20170096922
2017-04-06

Exhaust system comprising a passive NOadsorber

 #53
20170074190
2017-03-16

Control method for improving nitrogen oxide purification performance

 #54
20170044953
2017-02-16

Exhaust gas purification apparatus for an internal combustion engine

 #55
20170044947
2017-02-16

Internal combustion engine

 #56
20170044946
2017-02-16

Method of operating an automotive system

 #57
20170037799
2017-02-09

Dual catalyst heating system

 #58
20170037757
2017-02-09

Exhaust gas purification apparatus for internal combustion engine

 #59
20160376963
2016-12-29

Method of regenerating lean NOx trap of exhaust purification system provided with lean NOx trap and selective catalytic reduction catalyst and exhaust purification system

 #60
20160341091
2016-11-24

Emissions reduction system

 #61
20160290197
2016-10-06

Exhaust purification device and method of calculating NOx mass reduced from lean NOx trap during regeneration

 #62
20160258373
2016-09-08

Exhaust gas control system for internal combustion engine

 #63
20160201587
2016-07-14

Exhaust gas purification system and exhaust gas purification method

 #64
20160138452
2016-05-19

Reagent dosing system and method of dosing reagent

 #65
20160032333
2016-02-04

Method for growing algae

 #66
20150159186
2015-06-11

Method for recycling flue gas

 #67
20140311128
2014-10-23

Reagent dosing system and method of dosing reagent

 #68
20140241950
2014-08-28

Exhaust system for a lean burn IC engine

 #69
20140123630
2014-05-08

Method and device for reactivating exhaust-gas purification systems of diesel engines with low-pressure EGR

 #70
20130180231
2013-07-18

EXHAUST AFTERTREATMENT SYSTEM

 #71
20130115138
2013-05-09

Exhaust purification system of internal combustion engine

 #72
20130011313
2013-01-10

Exhaust gas aftertreatment installation and method

 #73
20120321523
2012-12-20

EXHAUST EMISSION CONTROL DEVICE

 #74
20120247088
2012-10-04

EXHAUST GAS AFTER-TREATMENT SYSTEM

 #75
20120233985
2012-09-20

APPARATUS COMPRISING LEAN BURN IC ENGINE AND AN EXHAUST SYSTEM THEREFOR

 #76
20120216508
2012-08-30

Emission control

 #77
20120148464
2012-06-14

Exhaust-gas aftertreatment system with catalytically active wall-flow filter with storage function upstream of catalytic converter with identical storage function

 #78
20120137663
2012-06-07

Method for predicting NOx loading at DeNOx catalyst and exhaust system using the same

 #79
20120137661
2012-06-07

Method for predicting regeneration of DeNOx catalyst and exhaust system using the same

 #80
20120004833
2012-01-05

Method for operating an internal combustion engine with an emission control system

 #81
20110258982
2011-10-27

METHOD FOR THE ON-BOARD REACTIVATION OF THERMALLY AGED NITROGEN OXIDE STORAGE CATALYSTS IN MOTOR VEHICLES HAVING AN INTERNAL COMBUSTION ENGINE OPERATED PREDOMINANTLY UNDER LEAN CONDITIONS

 #82
20110239633
2011-10-06

EXHAUST EMISSION PURIFYING APPARATUS

 #83
20110212008
2011-09-01

Catalyzed soot filter

 #84
20110185708
2011-08-04

Adaptive Desulfation Control Algorithm

 #85
20110179777
2011-07-28

Exhaust system for a lean burn ic engine

 #86
20110016848
2011-01-27

SYSTEM AND METHOD FOR TREATING DIESEL EXHAUST GASES

 #87
20110011059
2011-01-20

Exhaust gas treating apparatus and treating method

 #88
20110005204
2011-01-13

Exhaust gas aftertreatment installation and method

 #89
20110005199
2011-01-13

Method for reducing emission of nitrogen oxide in a motor vehicle having a lean burning internal combustion engine

 #90
20100326053
2010-12-30

Method and device for operating an internal combustion engine

 #91
20100307140
2010-12-09

Method to monitor HC-SCR catalyst NOx reduction performance for lean exhaust applications

 #92
20100287918
2010-11-18

NOadsorbing apparatus and exhaust-gas converting apparatus

 #93
20100263358
2010-10-21

Multi-zoned catalyst compositions

 #94
20100236224
2010-09-23

Emissions treatment system with lean NOx trap

 #95
20100132336
2010-06-03

Exhaust gas purification system for an internal combustion engine

 #96
20100132334
2010-06-03

METHOD AND DEVICE FOR MONITORING THE REGENERATION OF A POLLUTION-REMOVAL SYSTEM

 #97
20100071347
2010-03-25

Exhaust purification device of an internal combustion engine

 #98
20090301067
2009-12-10

Reagent dosing system and method of dosing reagent

 #99
20090249767
2009-10-08

Exhaust purification device of compression ignition type internal combustion engine

 #100
20090211230
2009-08-27

Method and apparatus for temperature management in an exhaust gas posttreatment system

 #101
20090205323
2009-08-20

Exhaust gas purification system for internal combustion engine

 #102
20090193796
2009-08-06

Gasoline engine emissions treatment systems having particulate traps

 #103
20090158708
2009-06-25

ENGINE COMPRISING A CATALYTIC CONVERTER WITH FAILSAFE OPERATION

 #104
20090084091
2009-04-02

Exhaust purification device of an internal combustion engine

 #105
20090077947
2009-03-26

Sulfur purge control method for exhaust gas purifying system and exhaust gas purifying system

 #106
20080264040
2008-10-30

System and method for reducing NOx emissions in an apparatus having a diesel engine

 #107
20080256933
2008-10-23

Internal Combustion Engine Having On-Board Electrolyzer And Method Of Using Same

 #108
20080138215
2008-06-12

Dosing pump unit

 #109
20080120019
2008-05-22

Drive System And Control Method Of The Same

 #110
20080028754
2008-02-07

METHODS AND APPARATUS FOR OPERATING AN EMISSION ABATEMENT ASSEMBLY

 #111
20080022664
2008-01-31

Optimal fuel profiles

 #112
20070261393
2007-11-15

Multi-cylinder internal combustion engine

 #113
20070256407
2007-11-08

Reformer temperature control with leading temperature estimation

 #114
20070204601
2007-09-06

Exhaust gas purification system for hybrid vehicle

 #115
20070204595
2007-09-06

Exhaust Gas Purification Apparatus of Internal Combustion Engine and Catalyst for Purifying Exhaust Gas of Internal Combustion Engine

 #116
20070175208
2007-08-02

Exhaust gas aftertreatment installation and method

 #117
20070175206
2007-08-02

NOx adsorber aftertreatment system for internal combustion engines

 #118
20070144149
2007-06-28

CONTROLLED REGENERATION SYSTEM

 #119
20070130915
2007-06-14

Internal combustion engine with exhaust-gas purification system, and method for purifying the exhaust gas from an internal combustion engine

 #120
20070125073
2007-06-07

LNT desulfation strategy

 #121
20070110650
2007-05-17

Catalyst arrangement and method of purifying the exhaust gas of internal combustion engines operated under lean conditions

 #122
20070082783
2007-04-12

Narrow speed range diesel-powered engine system w/ aftertreatment device

 #123
20070000239
2007-01-04

Method and system for regeneration of a catalyst

 #124
20070000237
2007-01-04

Exhaust gas purification system for internal combustion engine

 #125
20060283174
2006-12-21

System and method for reducing NOx emissions in an apparatus having a diesel engine

 #126
20060283172
2006-12-21

System and method for reducing NOx emissions in an apparatus having a diesel engine

 #127
20060254266
2006-11-16

Emissions control

 #128
20060153761
2006-07-13

Exhaust gas aftertreatment installation and method

 #129
20060133969
2006-06-22

Exhaust system for a lean burn internal combustion engine

 #130
20060123768
2006-06-15

Catalytic converter degradation determining system

 #131
20060117738
2006-06-08

Method and device for controlling the functioning of a nitrogen oxide trap for an internal combustion engine running on a lean mixture

 #132
20060107657
2006-05-25

Method and apparatus for conversion of NO

 #133
20060107649
2006-05-25

Apparatus and method for clarifying exhaust gas of diesel engine

 #134
20050262832
2005-12-01

Exhaust gas purification device of internal combustion engine

 #135
20050262829
2005-12-01

Exhaust gas purification device of internal combustion engine

 #136
20050247050
2005-11-10

Adsorption based ammonia storage and regeneration system

 #137
20050247049
2005-11-10

Temperature swing adsorption and selective catalytic reduction NOx removal system

 #138
20050217254
2005-10-06

Exhaust purifying apparatus and exhaust purifying method for internal combustion engine

 #139
20050217249
2005-10-06

Exhaust gas purification device of internal combustion engine

 #140
20050217248
2005-10-06

Exhaust gas purification device of internal combustion engine

 #141
20050217247
2005-10-06

Diesel aftertreatment systems

 #142
20050204729
2005-09-22

Exhaust gas purification device of internal combustion engine

 #143
20050191752
2005-09-01

Diagnostic process for an exhaust gas catalytic converter of a heat engine and vehicle using this process

 #144
20050178109
2005-08-18

Exhaust gas purifying apparatus for internal combustion engine

 #145
20050175515
2005-08-11

Exhaust gas-purifying apparatus

 #146
20050173265
2005-08-11

Sensor device for exhaust gases of internal combustion engines and operating and analyzing method

 #147
20050166577
2005-08-04

Emissions control

 #148
20050132696
2005-06-23

Method and apparatus for regenerating a nitrogen oxides absorber

 #149
20050112046
2005-05-26

Sulfur purge control method and exhaust gas purifying system

 #150
20050091970
2005-05-05

Diesel particulate filter pressure monitor

 #151
20050089456
2005-04-28

Exhaust gas purifcation apparatus of internal combustion engine and catalyst for purifying exhaust gas of internal combustion engine

 #152
20050072141
2005-04-07

Exhaust gas purification apparatus for internal combustion engine and method thereof

 #153
20050066652
2005-03-31

Diesel aftertreatment systems

 #154
20050050881
2005-03-10

Exhaust gas purification system for internal combustion engine

 #155
20050034450
2005-02-17

Exhaust gas purification device of internal combustion engine

 #156
20050022506
2005-02-03

Combustion control system of internal combustion engine

 #157
20050016164
2005-01-27

Exhaust line for an internal combustion engine

 #158
20050011182
2005-01-20

Exhaust gas purification apparatus for engine

 #159
18390839
2025-02-18

Active hydrocarbon trap for reduction of emissions from internal combustion engines using an electrically-heated catalyst

 #160
18295440
2024-03-26

System and method for engine cold start

 #161
18066734
2024-04-16

Treatment system for gasoline compression ignition engine exhaust

 #162
17806377
2023-11-07

System and method for dosing a selective catalytic reduction catalyst