ClassID:

138296 ⎘

F01N2900/1818 - CPC Classification

Classification description:

Details of electrical control or of the monitoring of the exhaust gas treating apparatus; Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust; Properties of reducing agent or dosing system Concentration of the reducing agent

Recent Application in this class:
#1
20250297564
2025-09-25

SYSTEMS AND METHODS FOR MEASURING EXHAUST GAS SPECIES AND CATALYST NOX STORAGE FOR CATALYST-RELATED CONTROLS AND DIAGNOSTICS

#2
20240077009
2024-03-07

SYSTEMS AND METHODS FOR MEASURING EXHAUST GAS SPECIES AND SCR CATALYST NOX STORAGE FOR SCR-RELATED CONTROLS AND DIAGNOSTICS

#3
20230146166
2023-05-11

Exhaust Fluid Filter Including Hydrocarbon Detection Witness Media

#4
20230034184
2023-02-02

Methods for evaluating diesel exhaust fluid quality

#5
20230031074
2023-02-02

Diesel exhaust fluid doser protection during cold ambient temperature conditions using cylinder cutout methods

#6
20220333518
2022-10-20

Method and processor unit for operating an exhaust gas burner

#7
20220251988
2022-08-11

Urea water supply system

#8
20220154615
2022-05-19

Systems and methods for measuring exhaust gas species and SCR catalyst NOx storage for SCR-related controls and diagnostics

#9
20220127988
2022-04-28

Diesel exhaust fluid tank heating system

#10
20220106895
2022-04-07

Method for injecting gaseous ammonia into a combustion engine exhaust line

#11
20220025800
2022-01-27

Methods for evaluating diesel exhaust fluid quality

#12
20210308701
2021-10-07

Nozzle lance, combustion plant and method for exhaust gas treatment

#13
20210293172
2021-09-23

Method and system for diagnosing an aftertreatment system

#14
20210215081
2021-07-15

Exhaust fluid filter including hydrocarbon detection witness media

#15
20210048115
2021-02-18

Solenoid valve, fixing assembly for installing sensor, and sensor assembly

#16
20200386136
2020-12-10

Method and apparatus for selective catalytic reduction system

#17
20200347765
2020-11-05

Reductant dosing system for an SCR catalyst

#18
20200256230
2020-08-13

Exhaust gas purifying device of work machine

#19
20200240310
2020-07-30

Exhaust fluid filter including hydrocarbon detection witness media

#20
20200232840
2020-07-23

Level sensor assembly

#21
20200123951
2020-04-23

METHOD AND SYSTEM FOR CONTROLLING INJECTION OF A REDUCING AGENT INTO AN EXHAUST GAS STREAM

#22
20200040787
2020-02-06

Method and device for monitoring the tank content of a storage tank of an exhaust-gas treatment system

#23
20200011222
2020-01-09

Selective catalytic reduction adaptation for accuracy and minimized tailpipe impact

#24
20190383195
2019-12-19

Connection head with a return cavity

#25
20190309671
2019-10-10

Reductant concentration diagnostic systems and methods

#26
20190277178
2019-09-12

Exhaust fluid filter including hydrocarbon detection witness media

#27
20190234280
2019-08-01

Method and system of urea solution level measurement adjustment, display and heater operation

#28
20190234268
2019-08-01

Exhaust purification system of internal combustion engine

#29
20190178133
2019-06-13

System, method, and apparatus for aftertreatment system monitoring

#30
20190170045
2019-06-06

Line connector with integrated sensor for measurement of urea solutions

#31
20190159341
2019-05-23

Electronic system comprising an intermediate printed circuit board for a fluid property sensor and fluid property sensor

#32
20190056321
2019-02-21

Sensor device for containers of liquid substances

#33
20190055873
2019-02-21

Method for restricting work produced by a combustion engine

#34
20190049341
2019-02-14

Virtual diesel exhaust fluid (DEF) quality monitor

#35
20180371975
2018-12-27

Combustion engine exhaust gas purifying facility

#36
20180363527
2018-12-20

Temperature-based control of reagent distribution

#37
20180347436
2018-12-06

Fluid sensor protection assembly

#38
20180326838
2018-11-15

Operating fluid container system for motor vehicles and method for filling a fuel container of an operating fluid container system

#39
20180298835
2018-10-18

Method and system for use when correcting supply of an additive to an exhaust gas stream

#40
20180298834
2018-10-18

Method and system for diagnosing an aftertreatment system

#41
20180258812
2018-09-13

Method and apparatus to supply water to a tank of an exhaust system provided with exhaust gas after-treatment for a combustion engine

#42
20180252137
2018-09-06

Method for heating an operating agent, as well as reservoir heating system and an operating agent heating system

#43
20180178162
2018-06-28

Urea water agitation control device

#44
20180171848
2018-06-21

Method for diagnosing a quality signal, control device, control device program and control device program product

#45
20180171843
2018-06-21

Method and a system for evaluating an effective component content of a reducing agent

#46
20180149056
2018-05-31

Method for controlling an exhaust gas treatment system

#47
20180148041
2018-05-31

Fuel and reagent degradation reduction in hybrid electrical vehicle systems

#48
20180094562
2018-04-05

Diesel exhaust fluid system

#49
20180023449
2018-01-25

Method and system of urea solution level measurement adjustment, display and heater operation

#50
20180016957
2018-01-18

Suction tube for a urea sensor

#51
20170356320
2017-12-14

Exhaust fluid filter including hydrocarbon detection witness media

#52
20170328253
2017-11-16

Reducing agent supply device and method for controlling reducing agent supply device

#53
20170268398
2017-09-21

Method and control assembly for operating an exhaust gas system

#54
20170198652
2017-07-13

Engine control systems and methods for nitrogen oxide reduction

#55
20170138826
2017-05-18

Debubbling sleeve for fluid sensors and sensor systems comprising same

#56
20170107879
2017-04-20

Method of managing a selective catalytic reduction system of a motor vehicle

#57
20170009625
2017-01-12

Liquid delivery module, a method for assembling such a delivery module and a tank set comprising such a delivery module

#58
20160356196
2016-12-08

Concentration determination device and method

#59
20160349157
2016-12-01

System and method for repeatable fluid measurements

#60
20160333760
2016-11-17

System and method for determining a parameter indicative of an amount of a reducing agent

#61
20160303512
2016-10-20

Exhaust gas purification apparatus for internal combustion engine

#62
20160281569
2016-09-29

System, method, and apparatus for aftertreatment system monitoring

#63
20160146776
2016-05-26

Urea water suitability determination device

#64
20160115838
2016-04-28

Systems and methods for managing diesel exhaust fluid stratification

#65
20160084780
2016-03-24

Liquid concentration detecting device

#66
20150354429
2015-12-10

METHOD FOR MONITORING UREA QUALITY OF AN SCR SYSTEM

#67
20150337708
2015-11-26

Reduction of aeration interference via tortuous path and sensor boot

#68
20150315952
2015-11-05

Method, system, and apparatus for diagnosing an exhaust aftertreatment component

#69
20150292385
2015-10-15

Method and system for controlling the operation of a system for storing and injecting an additive into the exhaust gases of an engine

#70
20150292381
2015-10-15

Reducing agent metering system with leak monitoring

#71
20150275731
2015-10-01

Control apparatus

#72
20150260687
2015-09-17

Fluid state identification device

#73
20150096287
2015-04-09

Multi-stage SCR control and diagnostic system

#74
20150088362
2015-03-26

SCR aftertreatment system maintenance inducement method

#75
20150047326
2015-02-19

Water injection exhaust treatment system

#76
20150033700
2015-02-05

Defrosting a sensor in a vehicle system

#77
20140260201
2014-09-18

Method, system, and apparatus for diagnosing an exhaust aftertreatment component

#78
20140227138
2014-08-14

Method for removing foreign matter from a selective reduction catalyst system

#79
20140199219
2014-07-17

Method for determining a quality of a reducing agent solution containing ammonia used to reduce nitrite oxide

#80
20140188327
2014-07-03

Method and system of determining failure of urea quality sensor

#81
20140150538
2014-06-05

Sensor for detecting the quality of a fluid

#82
20140132951
2014-05-15

Device for measuring urea concentration

#83
20140096511
2014-04-10

Method and device for operating an SCR system

#84
20140070826
2014-03-13

Storage vessel for a liquid, and a method for measuring the electric conductivity of a liquid

#85
20140033683
2014-02-06

System, method, and apparatus for aftertreatment system monitoring

#86
20130327118
2013-12-12

Methods for an exhaust fluid sensor

#87
20130319070
2013-12-05

Method for verifying the plausibility of a measuring device for determining the quality of an aqueous urea solution in a reservoir of an SCR catalyst system

#88
20130298533
2013-11-14

System for indicating quality of a diesel exhaust fluid (β€œDEF”)

#89
20130167622
2013-07-04

Quality sensor apparatus

#90
20130152545
2013-06-20

DIESEL EISSION FLUID QUALITY DETECTION SYSTEM AND METHOD

#91
20130133309
2013-05-30

Methods for an exhaust fluid sensor

#92
20130061949
2013-03-14

Selective catalytic reduction system

#93
20130061665
2013-03-14

Selective catalytic reduction sensor

#94
20130055700
2013-03-07

SELECTIVE CATALYTIC REDUCTION SYSTEM

#95
20130037138
2013-02-14

System to detect anomalous fluids in an SCR system

#96
20120304744
2012-12-06

Urea quality diagnosis system

#97
20120272639
2012-11-01

Reductant Quality Sensor

#98
20120186334
2012-07-26

Combination fluid sensor system

#99
20120143450
2012-06-07

Controlling of a vehicle responsive to reductant conditions

#100
20120111870
2012-05-10

INSTALLATION COMPONENT FOR A TANK, APPARATUS FOR DETERMINING A FILL LEVEL OF A TANK, METHOD FOR PRODUCING AN INSTALLATION COMPONENT, TANK AND MOTOR VEHICLE HAVING A TANK

#101
20120000270
2012-01-05

Method for detecting abnormality in reducing agent

#102
20120000185
2012-01-05

Method for detecting abnormality in reducing agent

#103
20110320103
2011-12-29

Exhaust treatment methods and systems

#104
20110247319
2011-10-13

Exhaust emission purifying apparatus and liquid level measuring device

#105
20110107812
2011-05-12

Rationality diagnosis method and rationality diagnosis apparatus for sensor inside tank

#106
20110067385
2011-03-24

EXHAUST EMISSION PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE

#107
20110067384
2011-03-24

Exhaust emission purifying apparatus for internal combustion engine

#108
20100327884
2010-12-30

Liquid level and quality sensing apparatus, systems and methods using EMF wave propagation

#109
20100312445
2010-12-09

Controlling of a vehicle responsive to reductant conditions

#110
20100236220
2010-09-23

Exhaust emission purifying apparatus for engine

#111
20100218484
2010-09-02

Method and device for controlling an SCR-exhaust gas after-treatment system of an internal combustion engine

#112
20100031641
2010-02-11

Exhaust purification device of an internal combustion engine

#113
20100003168
2010-01-07

Apparatus for distinguishing liquid reducing agent and exhaust emission control apparatus of engine

#114
20090301059
2009-12-10

Exhaust purification device of internal combustion engine

#115
20090107116
2009-04-30

EXHAUST GAS TREATMENT

#116
20080314027
2008-12-25

Exhaust Gas Treatment

#117
20080247912
2008-10-09

Urea concentration identification device for urea solution

#118
20080205478
2008-08-28

Urea sensor

#119
20080089384
2008-04-17

Apparatus for discriminating liquid reducing agent

#120
20080066531
2008-03-20

Liquid type identifying method and liquid type identifying device

#121
20080038153
2008-02-14

Liquid state detecting sensor

#122
20070266697
2007-11-22

Exhaust emission purifying apparatus for engine

#123
20070204678
2007-09-06

Condition discriminating apparatus for liquid reducing agent

#124
20070204677
2007-09-06

Apparatus for detecting concentration and remaining amount of liquid reducing agent

#125
20070202019
2007-08-30

Reducing agent container having novel structure

#126
20070163240
2007-07-19

Exhaust gas purifying apparatus and exhaust gas purifying method of an engine

#127
20070125663
2007-06-07

Liquid-condition detection element and detection sensor

#128
20070110618
2007-05-17

Liquid state detecting apparatus

#129
20070059222
2007-03-15

Structure of reducing agent container

#130
20070054409
2007-03-08

Urea concentration identification device for urea solution

#131
20070035832
2007-02-15

Exhaust emission purifying apparatus for internal combustion engine

#132
20060051276
2006-03-09

Device for treatment of exhaust of an internal combustion engine

#133
20060026949
2006-02-09

Urea concentration identifying system, method for indentifying urea concentration and automobile exhaust gas reducing system using same, and method for reducing automobile exhaust gas

#134
20050207936
2005-09-22

System for diagnosing reagent solution quality

#135
20050011183
2005-01-20

Device for metering a urea soulution