ClassID:

137841

F01N3/108 - CPC Classification

Classification description:

Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust; General auxiliary catalysts, e.g. upstream or downstream of the main catalyst Auxiliary reduction catalysts

Recent Application in this class:
#1
20250312739
2025-10-09

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

#2
20250277466
2025-09-04

EXHAUST GAS AFTERTREATMENT SYSTEM FOR AN AMMONIA FUELED INTERNAL COMBUSTION ENGINE

#3
20250223915
2025-07-10

EXHAUST GAS PURIFICATION APPARATUS

#4
20250179952
2025-06-05

HYDROGEN OXIDATION CATALYSTS FOR HYDROGEN-INTERNAL COMBUSTION ENGINE SYSTEMS

#5
20240151171
2024-05-09

Control device and method for controlling an exhaust gas aftertreatment system

#6
20240066468
2024-02-29

EXHAUST GAS TREATMENT SYSTEM

#7
20240052766
2024-02-15

Aftertreatment system NOx and ammonia control strategy

#8
20240044272
2024-02-08

Configurable aftertreatment systems including a housing

#9
20240035408
2024-02-01

Method for controlling an internal combustion engine including at least one exhaust-gas aftertreatment component having an electric heating element

#10
20240017245
2024-01-18

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

#11
20230265772
2023-08-24

Exhaust system for an ammonia-burning combustion engine

#12
20230123437
2023-04-20

Configurable aftertreatment systems including a housing

#13
20230094717
2023-03-30

Control device for internal combustion engine

#14
20230057647
2023-02-23

Exhaust gas system for an internal combustion engine

#15
20230037326
2023-02-09

Method for adaption of an exhaust treatment system

#16
20220403793
2022-12-22

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

#17
20220403768
2022-12-22

Method and system for diagnosing oxidation of a substance in an exhaust gas stream

#18
20220290599
2022-09-15

Exhaust gas treatment system with improved low temperature performance

#19
20220025798
2022-01-27

Methods for diagnostics and operation of an emissions aftertreatment system

#20
20210310392
2021-10-07

Exhaust gas energy recovery converter

#21
20210164375
2021-06-03

Exhaust gas purification system

#22
20210123366
2021-04-29

Aftertreatment system and method

#23
20210033041
2021-02-04

System and a method for diagnosing the performance of two NOX sensors in an exhaust gas processing configuration comprising two SCR units

#24
20200191034
2020-06-18

Apparatus and method for controlling exhaust gas purification

#25
20200072109
2020-03-05

AN EXHAUST GAS TREATMENT SYSTEM

#26
20200018205
2020-01-16

Automated guided vehicle for an emissions control system

#27
20190383189
2019-12-19

EXHAUST GAS TREATMENT SYSTEM WITH IMPROVED LOW TEMPERATURE PERFORMANCE

#28
20190299192
2019-10-03

Catalytic article comprising combined PGM and OSC

#29
20190264593
2019-08-29

Method for monitoring an ammonia slip catalytic converter

#30
20190128167
2019-05-02

Mixer system proximate to vehicle engine

#31
20190055868
2019-02-21

Ammonia generation from engine exhaust at ambient conditions using water-gas shift and ammonia synthesis catalysts

#32
20190015781
2019-01-17

Diesel oxidation catalyst comprising platinum group metal nanoparticles

#33
20190010847
2019-01-10

Exhaust gas control system for internal combustion engine and control method for exhaust gas control system

#34
20180306078
2018-10-25

Movable emission control system for auxiliary diesel engines

#35
20180296978
2018-10-18

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

#36
20180274416
2018-09-27

AFTERTREATMENT SYSTEM FOR MOTOR VEHICLE

#37
20180266292
2018-09-20

Methods and systems for an aftertreatment catalyst

#38
20180221820
2018-08-09

Exhaust treatment system and method for treatment of an exhaust gas stream

#39
20180058286
2018-03-01

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

#40
20170284255
2017-10-05

Work vehicle

#41
20170009629
2017-01-12

Exhaust aftertreatment device for aftertreatment of exhaust of an internal combustion engine

#42
20160341091
2016-11-24

Emissions reduction system

#43
20160326930
2016-11-10

Exhaust purification system for internal combustion engine

#44
20160319717
2016-11-03

ENGINE SYSTEM

#45
20160279614
2016-09-29

Exhaust gas purification catalyst and the method for producing the same

#46
20160201587
2016-07-14

Exhaust gas purification system and exhaust gas purification method

#47
20160166989
2016-06-16

Method for purifying exhaust gas

#48
20160153338
2016-06-02

NITROGEN OXIDE PURIFICATION SYSTEM AND CONTROL METHOD OF THE SAME

#49
20160084129
2016-03-24

Liquid cooled reductant dosing unit

#50
20150377110
2015-12-31

Angled and compact exhaust gas aftertreatment device

#51
20150308363
2015-10-29

Method and system of controlling exhaust after-treatment apparatus for vehicle

#52
20150300297
2015-10-22

Exhaust system for spark-ignited gaseous fuel internal combustion engine

#53
20150290587
2015-10-15

Exhaust gas purification apparatus for internal combustion engine

#54
20150240682
2015-08-27

Systems and methods to mitigate NOand HC emissions

#55
20150167522
2015-06-18

EXHAUST GAS PURIFYING SYSTEM FOR VEHICLE

#56
20150113966
2015-04-30

Aftertreatment systems with reduced NO generation

#57
20150096286
2015-04-09

Exhaust gas purification device for internal combustion engine

#58
20150010449
2015-01-08

Emissions control in stationary rich burn engines

#59
20140298776
2014-10-09

Exhaust injection muffler

#60
20140112833
2014-04-24

Exhaust gas control apparatus for internal combustion engine

#61
20130152557
2013-06-20

Compact exhaust gas treatment unit with reaction agent addition and motor vehicle having an exhaust gas treatment unit

#62
20130111886
2013-05-09

Electronically heated NOadsorber catalyst

#63
20120198794
2012-08-09

Genset enclosure

#64
20120180453
2012-07-19

Sulfur-tolerant perovskite NOoxidation catalysts

#65
20120137657
2012-06-07

SCR closed loop control system

#66
20120067027
2012-03-22

Exhaust injection muffler

#67
20120060474
2012-03-15

Exhaust cooler

#68
20120060473
2012-03-15

Marine exhaust catalyst

#69
20110138792
2011-06-16

Device for metering fuel

#70
20110047994
2011-03-03

EXHAUST GAS PURIFICATION APPARATUS

#71
20110047993
2011-03-03

Exhaust purification system of internal combustion engine

#72
20110005200
2011-01-13

Catalyst system for the reduction of NOx and NHemissions

#73
20100257849
2010-10-14

Exhaust emission control device

#74
20100247396
2010-09-30

Selective Catalytic Reduction Filter and Method of Using Same

#75
20100224142
2010-09-09

Method of exhaust cleaning for internal combustion engine and exhaust cleaner

#76
20100209321
2010-08-19

Catalyst System for the Reduction of NOx and NH3 Emissions

#77
20100129271
2010-05-27

Diesel particle filter with a ceramic filter body

#78
20100126143
2010-05-27

Dual bed catalyst system for NOx reduction in lean-burn engine exhaust

#79
20100086446
2010-04-08

Exhaust emission purifying apparatus for engine

#80
20090288400
2009-11-26

Exhaust gas purifying device for diesel engine

#81
20090277161
2009-11-12

Device For Supplying A Reducing Agent Solution Into An Exhaust System And Corresponding Exhaust System, Method and Vehicle

#82
20090266057
2009-10-29

Exhaust purification device of an internal combustion engine

#83
20090255237
2009-10-15

SCR catalytic converter without NH3 or urea injection

#84
20090229247
2009-09-17

Control device and exhaust purification method of internal combustion engine

#85
20090149318
2009-06-11

Catalyst system for the reduction of NOx and NHemissions

#86
20090019836
2009-01-22

Exhaust gas purification method and exhaust gas purification system

#87
20080256936
2008-10-23

Selective Catalytic Reduction Filter and Method of Using Same

#88
20080175762
2008-07-24

Catalytic converter optimization

#89
20080172167
2008-07-17

Air-fuel ratio control apparatus

#90
20080163608
2008-07-10

Device for estimating the load state of a NO storage catalytic converter

#91
20070246433
2007-10-25

Refractory exhaust filtering method and apparatus

#92
20070227130
2007-10-04

Catalytic converter apparatus for purifying exhaust gas

#93
20070186876
2007-08-16

System and method to operate fuel cell in the exhaust of an internal combustion engine

#94
20070163248
2007-07-19

Device for purifying the exhaust gas of an internal combustion engine

#95
20070157608
2007-07-12

Method for the reduction of NOand NHemissions

#96
20070144156
2007-06-28

Catalyst system for the reduction of NOand NHemissions

#97
20070144153
2007-06-28

Catalyst system for the reduction of NOand NHemissions

#98
20070104632
2007-05-10

Refractory exhaust filtering method and apparatus

#99
20070079602
2007-04-12

Thermal management of hybrid LNT/SCR aftertreatment during desulfation

#100
20070036694
2007-02-15

Exhaust aftertreatment system using urea water

#101
20070006573
2007-01-11

Thermal management of hybrid LNT/SCR aftertreatment during desulfation

#102
20060288693
2006-12-28

Exhaust gas purifying apparatus for internal combustion engine