Patents-Review.com
ClassID:

29785 ⎘

B01D53/9481 - CPC Classification

Classification description:

Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,; Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start

Sub-classes:
Recent Application in this class:
#1
20250186968
2025-06-12

ADSORBENT, ITS PREPARATION AND USE

 #2
20240416282
2024-12-19

FLUE GAS CONDITIONING

 #3
20240416281
2024-12-19

FLUE GAS CONDITIONING

 #4
20240416279
2024-12-19

FLUE GAS CONDITIONING

 #5
20240401512
2024-12-05

SYSTEMS AND METHODS FOR OPERATING PASSIVE NITROGEN OXIDE ADSORBERS IN EXHAUST AFTERTREATMENT SYSTEMS

 #6
20240151174
2024-05-09

Systems and methods for operating passive nitrogen oxide adsorbers in exhaust aftertreatment systems

 #7
20230398532
2023-12-14

THREE-WAY DIESEL CATALYST FOR COLD START TECHNOLOGY

 #8
20230383680
2023-11-30

System for reducing voc and nitrogen oxide and method for reducing same

 #9
20220339613
2022-10-27

Passive NOadsorber

 #10
20220323905
2022-10-13

Exhaust treatment system for ammonia-fueled vehicles

 #11
20220275747
2022-09-01

Systems and methods for operating passive nitrogen oxide adsorbers in exhaust aftertreatment systems

 #12
20220195902
2022-06-23

System for reducing VOC and nitrogen oxide and method for reducing same

 #13
20220105503
2022-04-07

Exhaust gas aftertreatment device

 #14
20220097002
2022-03-31

EXHAUST PURIFICATION DEVICE AND VEHICLE

 #15
20210299632
2021-09-30

Mixed oxide and its use as NOx adsorber

 #16
20210207511
2021-07-08

Internal combustion engine systems including criteria pollutant mitigation

 #17
20210162344
2021-06-03

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

 #18
20200376433
2020-12-03

Palladium oxide supported on spinels for NOx storage

 #19
20200248608
2020-08-06

After treatment system and after treatment method for lean-burn engine

 #20
20200248607
2020-08-06

After treatment system and after treatment method for lean-burn engine

 #21
20200230582
2020-07-23

Combined NOx absorber and SCR catalyst

 #22
20200149449
2020-05-14

Apparatus for purifying exhaust gas

 #23
20200131961
2020-04-30

EXHAUST GAS TREATMENT SYSTEMS AND METHODS FOR DIAGNOSING THE SAME

 #24
20200122086
2020-04-23

Emission control system

 #25
20200101436
2020-04-02

ZIRCONIA-BASED COMPOSITIONS FOR USE IN PASSIVE NOx ADSORBER DEVICES

 #26
20200063680
2020-02-27

Exhaust purification system of internal combustion engine and exhaust purification method

 #27
20200016571
2020-01-16

Passive NOadsorber

 #28
20190345859
2019-11-14

Passive NOadsorber

 #29
20190331011
2019-10-31

EXHAUST-GAS EMISSION CONTROL SYSTEM COMPRISING A FILTER FUNCTION AND DIAGNOSTIC METHOD FOR SAID SYSTEM

 #30
20190329181
2019-10-31

AFTERTREATMENT CATALYSIS AT DECREASED EFFECTIVE LIGHT-OFF TEMPERATURES

 #31
20190308164
2019-10-10

Zirconia-based compositions for use in passive NOx adsorber devices

 #32
20190299161
2019-10-03

Passive NOx adsorber

 #33
20190217269
2019-07-18

PASSIVE NOX ADSORBER

 #34
20190186316
2019-06-20

Exhaust gas purification apparatus for internal combustion engine

 #35
20190168200
2019-06-06

Passive NOx adsorber

 #36
20190168189
2019-06-06

Catalysed substrate monolith

 #37
20190153921
2019-05-23

Ruthenium impregnated ceria catalyst

 #38
20190120109
2019-04-25

Passive nitrogen oxide adsorber catalyst

 #39
20190063287
2019-02-28

EXHAUST SYSTEM WITH A MODIFIED LEAN NOx TRAP

 #40
20190009244
2019-01-10

Compositions for passive NOx adsorption (PNA) systems and methods of making and using same

 #41
20190001268
2019-01-03

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

 #42
20180318764
2018-11-08

Sorption enhanced reaction technology for increased performance from automotive catalysts

 #43
20180163596
2018-06-14

Catalyzed soot filter for use in passive selective catalytic reduction

 #44
20180135485
2018-05-17

Selective catalytic reduction filter devices having NOstorage capabilities

 #45
20180093249
2018-04-05

Compositions for passive NOadsorption (PNA) systems and methods of making and using same

 #46
20170314438
2017-11-02

Exhaust System

 #47
20170276053
2017-09-28

After-Treatment System

 #48
20170274358
2017-09-28

Catalysed substrate monolith

 #49
20170211455
2017-07-27

Exhaust System

 #50
20170167346
2017-06-15

Method of operating an aftertreatment system of an internal combustion engine

 #51
20170151532
2017-06-01

Diesel oxidation catalyst having a capture region for exhaust gas impurities

 #52
20170122158
2017-05-04

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

 #53
20170096923
2017-04-06

PASSIVE NOx ADSORBER

 #54
20170095805
2017-04-06

Passive NOadsorber

 #55
20170056866
2017-03-02

Three-way catalyst and its use in exhaust systems

 #56
20170002713
2017-01-05

Exhaust tract having a metering device which sprays counter to a direction of flow, method for operating an exhaust tract and vehicle having an exhaust tract

 #57
20170001169
2017-01-05

PASSIVE NOx ADSORBER

 #58
20160341091
2016-11-24

Emissions reduction system

 #59
20160279598
2016-09-29

PASSIVE NOX ADSORBER

 #60
20160279573
2016-09-29

Catalyst for purification of exhaust gas, NOx storage-reduction catalyst, and method for purifying exhaust gas

 #61
20160250594
2016-09-01

PASSIVE NOx ADSORBER

 #62
20160208667
2016-07-21

ENGINE EMISSION ABSORBER ASSEMBLY AND METHOD FOR OPERATING SAME

 #63
20160144338
2016-05-26

M-exchanged beta zeolite, gas adsorbent comprising same, method for producing same, and method for removing nitrogen monoxide

 #64
20160045868
2016-02-18

Zoned catalyst for treating exhaust gas

 #65
20160045867
2016-02-18

ZONE COATED CATALYTIC SUBSTRATES WITH PASSIVE NOX ADSORPTION ZONES

 #66
20160038878
2016-02-11

Zoned catalyst for treating exhaust gas

 #67
20160038876
2016-02-11

Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides

 #68
20150352495
2015-12-10

CATALYST AND METHOD FOR THE REDUCTION OF NITROGEN OXIDES

 #69
20150238934
2015-08-27

Catalysed substrate monolith

 #70
20150182941
2015-07-02

Fe(II)-substituted beta-type zeolite, production method therefor and gas adsorbent including same, and nitric oxide and hydrocarbon removal method

 #71
20150158023
2015-06-11

Cold start catalyst and its use in exhaust systems

 #72
20150158019
2015-06-11

Passive NOadsorber

 #73
20150157982
2015-06-11

Noble metal-molecular sieve catalysts

 #74
20150143799
2015-05-28

System and method of defulfurizing lean NOx trap

 #75
20150139874
2015-05-21

Lean NOx trap diesel oxidation catalyst with hydrocarbon storage function

 #76
20150132205
2015-05-14

Exhaust-gas aftertreatment device for an internal combustion engine, and method for heating an exhaust-gas aftertreatment device

 #77
20150118119
2015-04-30

THREE-WAY CATALYST AND ITS USE IN EXHAUST SYSTEMS

 #78
20150075140
2015-03-19

Exhaust system with a modified lean NOtrap

 #79
20140301907
2014-10-09

Diesel exhaust gas purification catalyst and diesel exhaust gas purification system

 #80
20140260214
2014-09-18

NOstorage catalyst with improved hydrothermal stability and NOconversion

 #81
20140234190
2014-08-21

NOtrap composition

 #82
20140186245
2014-07-03

Exhaust system for a lean-burn IC engine comprising a PGM component and a SCR catalyst

 #83
20140186244
2014-07-03

Catalysed substrate monolith

 #84
20130149207
2013-06-13

Substrate monolith comprising SCR catalyst

 #85
20130022511
2013-01-24

Exhaust purifying catalyst

 #86
20120308439
2012-12-06

COLD START CATALYST AND ITS USE IN EXHAUST SYSTEMS

 #87
20120302432
2012-11-29

Sulfur-resistant exhaust gas aftertreatment system for the reduction of nitrogen oxides

 #88
20120213673
2012-08-23

Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides

 #89
20120210696
2012-08-23

Low temperature NOx storage system for lean exhaust aftertreatment

 #90
20120093702
2012-04-19

Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides

 #91
20110281720
2011-11-17

Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides

 #92
20110274606
2011-11-10

Thermally regenerable nitric oxide adsorbent

 #93
20110218095
2011-09-08

Additives for highly compacted ammonia storage materials

 #94
20110203264
2011-08-25

Diesel exhaust gas purification catalyst and diesel exhaust gas purification system

 #95
20110185704
2011-08-04

Device and method for purifying exhaust gases for an internal combustion engine

 #96
20110056191
2011-03-10

Exhaust gas purification device

 #97
20110023465
2011-02-03

EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE

 #98
20100326057
2010-12-30

Exhaust Gas Purification Device

 #99
20100307133
2010-12-09

EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE, AND METHOD OF CONTROLLING THE SAME

 #100
20100287918
2010-11-18

NOadsorbing apparatus and exhaust-gas converting apparatus

 #101
20100287914
2010-11-18

Exhaust purification device of internal combustion engine

 #102
20100267548
2010-10-21

Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides

 #103
20100266471
2010-10-21

Exhaust aftertreatment system and method of treating exhaust gas

 #104
20100236224
2010-09-23

Emissions treatment system with lean NOx trap

 #105
20100137127
2010-06-03

PRODUCTION PROCESS FOR NOx ADSORPTION MATERIAL AND NOx ADSORPTION MATERIAL

 #106
20100115927
2010-05-13

Exhaust gas purifying apparatus for internal combustion engine

 #107
20100101421
2010-04-29

Exhaust-gas converting apparatus

 #108
20100050613
2010-03-04

Process for reducing NOx emissions from engine exhaust using LNT and SCR components

 #109
20100034712
2010-02-11

Exhaust-gas converting apparatus

 #110
20090318284
2009-12-24

NITROGEN OXIDE ADSORBENT AND METHOD FOR PRODUCING THE SAME

 #111
20090317307
2009-12-24

EXHAUST GAS PURIFYING DEVICE

 #112
20090272100
2009-11-05

Exhaust purification device of internal combustion engine

 #113
20090266057
2009-10-29

Exhaust purification device of an internal combustion engine

 #114
20090255240
2009-10-15

Sulfur-resistant exhaust gas aftertreatment system for the reduction of nitrogen oxides

 #115
20090229260
2009-09-17

Exhaust Gas Purifying Apparatus

 #116
20090211230
2009-08-27

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

 #117
20090199550
2009-08-13

Catalytic converter assembly in an exhaust gas posttreatment system

 #118
20090197761
2009-08-06

ADSORBENT FOR EXHAUST GAS

 #119
20090163359
2009-06-25

AMBIENT TEMPERATURE NITROGEN OXIDE ADSORBENT

 #120
20090094962
2009-04-16

Method and device for regenerating an emission control system

 #121
20090041635
2009-02-12

Fluid treatment device having a multiple ceramic honeycomb layered structure

 #122
20090031705
2009-02-05

Exhaust Gas Purification Device of Compression Ignition Type Internal Combustion Engine

 #123
20080134648
2008-06-12

Method of operating an exhaust gas cleaning unit with particle filter and nitrogen oxygen store

 #124
20070202031
2007-08-30

Device and procedure for the production of ammonia

 #125
20070199302
2007-08-30

Zeolite-Containing Oxidation Catalyst and Method of Use

 #126
20070089403
2007-04-26

Exhaust-gas purification system for the selective catalytic reduction of nitrogen oxides in the lean exhaust gas of internal combustion engines and method of exhaust-gas purification

 #127
20070081934
2007-04-12

METHOD FOR IMPROVING THE EFFICIENCY OF REDUCING NOX IN MOTOR VEHICLES

 #128
20070079602
2007-04-12

Thermal management of hybrid LNT/SCR aftertreatment during desulfation

 #129
20070033928
2007-02-15

Hybrid catalyst system for exhaust emissions reduction

 #130
20070006573
2007-01-11

Thermal management of hybrid LNT/SCR aftertreatment during desulfation

 #131
20060254258
2006-11-16

Exhaust system for lean burn IC engines

 #132
20060213189
2006-09-28

Treatment of nox sorber regeneration gas

 #133
20060117736
2006-06-08

Exhaust system for a diesel engine comprising a nox- trap

 #134
20060037312
2006-02-23

Exhaust purification device and exhaust purification method of internal combustion engine

 #135
20060010859
2006-01-19

Valveless dual leg exhaust aftertreatment system

 #136
20060010857
2006-01-19

Hybrid catalyst system for exhaust emissions reduction

 #137
20050232826
2005-10-20

Exhaust treatment devices

 #138
20050223699
2005-10-13

Bypass controlled regeneration of NOx adsorbers

 #139
20050201916
2005-09-15

Zeolite-containing oxidation catalyst and method of use

 #140
20050092688
2005-05-05

System and process for treating contaminated fluid system

 #141
17651700
2023-06-27

Device for the reduction of ammonia and nitrogen oxides emissions

 #142
16263593
2020-06-30

After treatment system and after treatment method for lean-burn engine

 #143
16142634
2019-11-19

Exhaust after-treatment system for diesel internal combustion engines