ClassID:

29775

B01D53/9436 - 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; Removing only nitrogen compounds Ammonia

Recent Application in this class:
#1
20260042085
2026-02-12

NH3 ABATEMENT WITH GREATER SELECTIVITY TO N2

#2
20250381524
2025-12-18

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

#3
20250352991
2025-11-20

UNCALCINED CATALYST PRECURSOR FOR A DIESEL OXIDATION CATALYST

#4
20250312739
2025-10-09

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

#5
20250312738
2025-10-09

CATALYTIC ARTICLE COMPRISING AMMONIA OXIDATION CATALYST

#6
20250288956
2025-09-18

Aftertreatment for Ammonia Fuelled Engine

#7
20240392719
2024-11-28

DIESEL EXHAUST AFTERTREATMENT SYSTEMS AND METHODS

#8
20240375048
2024-11-14

EXHAUST GAS PURIFICATION CATALYST DEVICE

#9
20240342655
2024-10-17

Catalytic Article for Ammonia Slip Removal From Diesel Exhaust Aftertreatment Systems With Low Weight and Faster Heating

#10
20240287928
2024-08-29

EXHAUST GAS AFTERTREATMENT SYSTEM

#11
20240269611
2024-08-15

SCR CATALYST ARTICLE AND SYSTEMS FOR REDUCING N2O IN EXHAUST GAS

#12
20240226864
2024-07-11

AMMONIA SLIP CATALYST FILTER

#13
20240218818
2024-07-04

SYSTEMS AND METHODS FOR MANAGING AMMONIA SLIP WITH A HEATER

#14
20240183299
2024-06-06

Exhaust-gas treatment arrangement

#15
20240165561
2024-05-23

AN AMMONIA OXIDATION CATALYST AND METHODS FOR ITS PREPARATION

#16
20240123403
2024-04-18

CATALYST FOR THE ABATEMENT OF AMMONIA FROM THE EXHAUST OF GASOLINE INTERNAL COMBUSTION ENGINES

#17
20240110499
2024-04-04

VALVE ARRANGEMENT FOR SPLIT-FLOW CLOSE-COUPLED CATALYST

#18
20240109036
2024-04-04

EXHAUST GAS TREATMENT SYSTEM FOR REDUCING AMMONIA EMISSIONS FROM MOBILE GASOLINE APPLICATIONS

#19
20240075427
2024-03-07

Catalytic system and method for the removal of HCN from off-gases of a fluid cracking unit using same, and FCC unit assembly including the catalytic system

#20
20240060441
2024-02-22

Catalyst with magnetic ferrite support material

#21
20240033719
2024-02-01

CATALYTIC FILTER FOR GASOLINE ENGINE EXHAUST TREATMENT

#22
20240024860
2024-01-25

Catalyst Composition Comprising Magnetic Material Adapted for Inductive Heating

#23
20240024819
2024-01-25

Catalytic Devices for the Abatement of NH3 and Nox Emissions From Internal Combustion Engines

#24
20240011421
2024-01-11

System comprising vehicular compression ignition engine and an emissions control device comprising an electrically heatable element

#25
20230399972
2023-12-14

ENGINE SYSTEM COMPRISING A HYDROGEN COMBUSTION ENGINE

#26
20230356198
2023-11-09

Catalyst Composition Comprising Ferrite-Based Magnetic Material Adapted for Inductive Heating

#27
20230347326
2023-11-02

METHOD OF TREATING EXHAUST GAS AND SYSTEM FOR SAME

#28
20230340898
2023-10-26

Low temperature NOx reduction using H2-SCR for diesel vehicles

#29
20230323802
2023-10-12

EXHAUST GAS TREATMENT SYSTEM

#30
20230219039
2023-07-13

EXHAUST GAS TREATMENT SYSTEM COMPRISING A MULTIFUNCTIONAL CATALYST

#31
20230211323
2023-07-06

Composite, zone-coated, dual-use ammonia (AMOX) and nitric oxide oxidation catalyst

#32
20230201812
2023-06-29

AMMONIA ADSORPTION CATALYST AND PREPARATION METHOD AND USE THEREOF

#33
20230173465
2023-06-08

Denitrification-oxidation complex catalyst structure and manufacturing method thereof

#34
20230143338
2023-05-11

MULTI-FUNCTIONAL CATALYSTS FOR THE OXIDATION OF NO, THE OXIDATION OF NH3 AND THE SELECTIVE CATALYTIC REDUCTION OF NOX

#35
20230130261
2023-04-27

PLATINUM AND ZINC-CONTAINING ZEOLITE

#36
20230108371
2023-04-06

Combustion turbine and heat recovery system combination with SCR reactor assembly, and methods of assembling and using the same

#37
20230087077
2023-03-23

Molecular sieve intergrowths of cha and aft having an “-GME tail,” methods of preparation and use

#38
20230076536
2023-03-09

EXHAUST GAS PURIFICATION CATALYST DEVICE

#39
20230049498
2023-02-16

HYDROCARBON ADSORBENT

#40
20230035318
2023-02-02

Zoned ammonia slip catalyst for improved selectivity, activity and poison tolerance

#41
20230001387
2023-01-05

CATALYST FOR SIMULTANEOUSLY INHIBITING EMISSION OF AMMONIA AND NITROUS OXIDE

#42
20220403768
2022-12-22

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

#43
20220339581
2022-10-27

CATALYST FOR THE ABATEMENT OF AMMONIA AND NITROGEN OXIDE EMISSIONS FROM THE EXHAUST GASES OF COMBUSTION ENGINES

#44
20220331787
2022-10-20

CU-CHA SCR CATALYSTS HAVING SPECIFIC LATTICE STRAIN AND DOMAIN SIZE CHARACTERISTICS

#45
20220316380
2022-10-06

Systems and methods for decreasing time to reach light-off temperature

#46
20220259997
2022-08-18

DEF system

#47
20220259995
2022-08-18

Exhaust gas after-treatment system

#48
20220220880
2022-07-14

Valve arrangement for split-flow close-coupled catalyst

#49
20220203345
2022-06-30

AMMONIA OXIDATION CATALYST DEVICE

#50
20220203338
2022-06-30

Ammonia oxidation catalyst for diesel applications

#51
20220203336
2022-06-30

Exhaust gas treatment system for ultra low NOx and cold start

#52
20220178293
2022-06-09

Internal swirler tube for exhaust catalyst

#53
20220136424
2022-05-05

Internal Combustion Engine Exhaust Aftertreatment System

#54
20220042433
2022-02-10

Exhaust aftertreatment arrangement for an exhaust system of an internal combustion engine

#55
20210387145
2021-12-16

Exhaust treatment system for a lean burn engine

#56
20210270173
2021-09-02

Exhaust aftertreatment unit for an exhaust system of an internal combustion engine

#57
20210215079
2021-07-15

Exhaust gas aftertreatment system with a selective catalytic reduction catalyst member upstream of a particulate filter

#58
20210162344
2021-06-03

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

#59
20210069688
2021-03-11

Catalytic article and exhaust gas treatment systems

#60
20200338537
2020-10-29

JMZ-5 AND JMZ-6, ZEOLITES HAVING AN SZR-TYPE CRYSTAL STRUCTURE, AND METHODS OF THEIR PREPARATION AND USE

#61
20200316574
2020-10-08

JMZ-1S, a CHA-containing molecular sieve and methods of preparation

#62
20200316572
2020-10-08

Molecular sieve intergrowths of and aft having an “-GME tail,” methods of preparation and use

#63
20200222853
2020-07-16

BIMETALLIC CATALYSTS FOR SELECTIVE AMMONIA OXIDATION

#64
20200215520
2020-07-09

ASC with platinum group metal in multiple layers

#65
20200061537
2020-02-27

Selective catalytic reduction process and method of regenerating deactivated SCR catalyst of a parallel flue gas treating system

#66
20190376435
2019-12-12

System for the removal of particulate matter and noxious compounds from engine exhaust gas

#67
20190376434
2019-12-12

System for the removal of particulate matter and noxious compounds from engine exhaust gas

#68
20190366312
2019-12-05

JMZ-5 and JMZ-6, zeolites having an SZR-type crystal structure, and methods of their preparation and use

#69
20190316506
2019-10-17

Exhaust aftertreatment system

#70
20190301334
2019-10-03

Catalyst article for use in an emission treatment system

#71
20190300375
2019-10-03

Process for the production of a zeolitic material via solvent-free interzeolitic conversion

#72
20190299198
2019-10-03

ZEOLITE PROMOTED V/TiW CATALYSTS

#73
20190284980
2019-09-19

Abnormality diagnosis apparatus

#74
20190283011
2019-09-19

Ammonia slip catalyst with in-situ PT fixing

#75
20190249586
2019-08-15

ABNORMALITY DIAGNOSIS APPARATUS AND VEHICLE

#76
20190248662
2019-08-15

Method for the preparation of a molecular sieve belonging to the ABC-6 framework family with disorder in the ABC stacking sequence

#77
20190242282
2019-08-08

Low temperature NOx reduction using H-SCR for diesel vehicles

#78
20190232264
2019-08-01

Vanadium trapping SCR system

#79
20190217280
2019-07-18

Catalyst comprising a molecular sieve belonging to the ABC-6 framework family with disorder in the ABC stacking sequence and use of the catalyst

#80
20190168198
2019-06-06

Ammonia slip catalyst designed to be first in an SCR system

#81
20190091677
2019-03-28

Catalyst for oxidising ammonia

#82
20190070596
2019-03-07

Catalyst composition comprising magnetic material adapted for inductive heating

#83
20190055871
2019-02-21

Combustion system

#84
20190054448
2019-02-21

Denitration catalyst and method for producing the same

#85
20190022584
2019-01-24

Integrated SCR and ammonia oxidation catalyst systems

#86
20190001268
2019-01-03

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

#87
20180347423
2018-12-06

Exhaust gas after-treatment unit for an internal combustion engine and procedure for using a drive mechanism with such an exhaust gas after-treatment unit

#88
20180340458
2018-11-29

Exhaust gas purification device for ship

#89
20180296979
2018-10-18

Exhaust gas purification material

#90
20180283250
2018-10-04

Platinum group metal and base metal on a molecular sieve for PNA-SCR-ASC close-coupled system

#91
20180280965
2018-10-04

Method for recycling denitration catalyst

#92
20180280948
2018-10-04

Selective catalytic reduction catalyst

#93
20180280947
2018-10-04

Selective catalytic reduction catalyst

#94
20180280945
2018-10-04

ASC with platinum group metal in multiple layers

#95
20180280941
2018-10-04

Method for recycling denitration catalyst

#96
20180280936
2018-10-04

Denitration catalyst and method for producing the same

#97
20180280879
2018-10-04

Catalyst article for use in an emission treatment system

#98
20180280877
2018-10-04

SCR with turbo and ASC/DOC close-coupled system

#99
20180280876
2018-10-04

ASC/DEC with rear-concentrated exotherm generation

#100
20180280875
2018-10-04

Combustion system

#101
20180272278
2018-09-27

Combustion system for ships

#102
20180264446
2018-09-20

Catalytic wall-flow filter with an ammonia slip catalyst

#103
20180250632
2018-09-06

Method for the removal of nitrogen oxides from exhaust gas by selective catalytic reduction in presence of an SCR catalyst comprising a Fe-AEI zeolithic material essentially free of alkali metal

#104
20180236402
2018-08-23

Ion exchanged synthetic phyllosilicate as SCR catalyst

#105
20180221860
2018-08-09

Exhaust system without a DOC having an ASC acting as a DOC in a system with an SCR catalyst before the ASC

#106
20180216512
2018-08-02

Oxygen correction for engine-out NOx estimates using a NOx sensor of an aftertreatment system

#107
20180195428
2018-07-12

System for the removal of particulate matter and noxious compounds from engine exhaust gas

#108
20180193797
2018-07-12

THREE WAY CATALYST HAVING AN NH3-SCR ACTIVITY, AN AMMONIA OXIDATION ACTIVITY AND AN ADSORPTION CAPACITY FOR VOLATILE VANADIUM AND TUNGSTEN COMPOUNDS

#109
20180156094
2018-06-07

Exhaust aftertreatment system, apparatus, and method

#110
20180112583
2018-04-26

Apparatus for measuring combustible-gas concentration, system for measuring combustible-gas concentration, system for treating exhaust gas, method for measuring combustible-gas concentration, and method for deriving constant

#111
20180111089
2018-04-26

Multifunctional filters for diesel emission control

#112
20180071724
2018-03-15

JMZ-5 and JMZ-6 zeolites having an SZR-type crystal structure, and methods of their preparation and use

#113
20180043305
2018-02-15

Exhaust gas treatment system

#114
20180017002
2018-01-18

Exhaust emission control system of engine

#115
20170312743
2017-11-02

STA-20, a novel molecular sieve framework type, methods of preparation and use

#116
20170304812
2017-10-26

STA-19, a new member of the GME family of molecular sieve zeotypes, methods of preparation and use

#117
20170276044
2017-09-28

After-treatment system

#118
20170209849
2017-07-27

Catalyst and method for preparing a catalyst

#119
20170191921
2017-07-06

Systems and methods for reducing secondary emissions from catalyst components

#120
20170189897
2017-07-06

Catalyst manufacturing method

#121
20170157593
2017-06-08

Use of catalysts, method and apparatus for selective oxidation of ammonia in a gas containing hydrogen

#122
20170087541
2017-03-30

Zoned ammonia slip catalyst for use in combustion turbines

#123
20170001177
2017-01-05

Catalyst for ammonia oxidation

#124
20160367974
2016-12-22

Exhaust system without a DOC having an ASC acting as a DOC in a system with an SCR catalyst before the ASC

#125
20160367973
2016-12-22

Ammonia slip catalyst designed to be first in an SCR system

#126
20160367941
2016-12-22

Zoned exhaust system

#127
20160288103
2016-10-06

Oxidation catalyst, method for preparing same, and filter for exhaust gas purification comprising same

#128
20160279574
2016-09-29

SYSTEMS AND METHODS FOR MONITORING THE HEALTH OF A SELECTIVE CATALYTIC REDUCTION CATALYST

#129
20160101413
2016-04-14

Catalysts for the reduction of ammonia emission from rich-burn exhaust

#130
20160038878
2016-02-11

Zoned catalyst for treating exhaust gas

#131
20150367337
2015-12-24

Molecular sieve catalyst compositions, catalytic composites, systems, and methods

#132
20150367330
2015-12-24

Ammonia oxidation catalyst for the production of nitric acid based on yttrium-gadolinium ortho cobaltates

#133
20150360207
2015-12-17

Catalyst manufacturing method

#134
20150352492
2015-12-10

Non-PGM ammonia slip catalyst

#135
20150265970
2015-09-24

AMMONIA ABATEMENT SYSTEM FOR EXHAUST SYSTEMS

#136
20150240752
2015-08-27

Exhaust system having NO catalyst in EGR circuit

#137
20150224486
2015-08-13

Zeolite promoted V/TiW catalysts

#138
20150151287
2015-06-04

Mixed template synthesis of high silica Cu-CHA

#139
20150031526
2015-01-29

Tungsten/titania oxidation catalyst

#140
20150023854
2015-01-22

Exhaust gas post-processing apparatus and control method thereof

#141
20150004085
2015-01-01

Exhaust gas after-treatment apparatus having improved durability and exhaust gas after-treatment method

#142
20140369898
2014-12-18

CROSS STYLE (4 PORT) AMMONIA GAS INJECTOR

#143
20140219880
2014-08-07

Multi-component filters for emissions control

#144
20140154163
2014-06-05

Ammonia oxidation catalyst

#145
20140079616
2014-03-20

Catalysts for the reduction of ammonia emission from rich-burn exhaust

#146
20140065044
2014-03-06

Ammonia oxidation catalyst, exhaust gas purification device using same, and exhaust gas purification method

#147
20140044635
2014-02-13

Ammonia oxidation catalyst, exhaust gas purification device using same, and exhaust gas purification method

#148
20140023576
2014-01-23

Systems and methods for reducing secondary emissions from catalyst components

#149
20130331258
2013-12-12

Palladium—gold catalyst synthesis

#150
20130323164
2013-12-05

CHA-type zeolite materials and methods for their preparation using cycloalkyammonium compounds

#151
20130230721
2013-09-05

Catalyst manufacturing method

#152
20130224090
2013-08-29

Catalyst for selective oxidation of NH3 to N2 and method for preparing the same

#153
20130216441
2013-08-22

Method for the preparation of a catalysed particulate filter and catalysed particulate filter

#154
20130059723
2013-03-07

Synthesis of zeolitic materials using N,N-dimethyl organotemplates

#155
20120247092
2012-10-04

Multi-component filters for emissions control

#156
20120079812
2012-04-05

EXHAUST GAS PURIFICATION APPARATUS OF ENGINE AND EXHAUST GAS PURIFICATION METHOD OF ENGINE

#157
20120042631
2012-02-23

CATALYST MATERIALS FOR AMMONIA OXIDATION IN LEAN-BURN ENGINE EXHAUST

#158
20110286900
2011-11-24

PGM-Zoned Catalyst for Selective Oxidation of Ammonia in Diesel Systems

#159
20110283960
2011-11-24

Ammonia-engine system

#160
20110182791
2011-07-28

Catalysts for the reduction of ammonia emission from rich-burn exhaust

#161
20110165040
2011-07-07

DEVICE FOR REMEDIATING EMISSIONS AND METHOD OF MANUFACTURE

#162
20110142755
2011-06-16

Process for the preparation of zeolites having B-CHA structure

#163
20100196221
2010-08-05

Selective catalytic reduction type catalyst, and exhaust gas purification equipment and purifying process of exhaust gas using the same

#164
20100184587
2010-07-22

Palladium-gold catalyst synthesis

#165
20100111796
2010-05-06

Integrated SCR and AMOx catalyst systems

#166
20100111791
2010-05-06

Bimetallic catalysts for selective ammonia oxidation

#167
20090291837
2009-11-26

Honeycomb structure

#168
20090263297
2009-10-22

CATALYST AND METHOD OF MANUFACTURE

#169
20090211230
2009-08-27

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

#170
20090180943
2009-07-16

Selective Ammonia Oxidation Catalysts

#171
20090180942
2009-07-16

SELECTIVE AMMONIA OXIDATION CATALYSTS

#172
20090158719
2009-06-25

Emission treatment system

#173
20090126353
2009-05-21

Oxidation Catalyst for NH3 and an Apparatus for Treating Slipped or Scripped NH3

#174
20090104096
2009-04-23

Zone coated catalyst to simultaneously reduce NOx and unreacted ammonia

#175
20090010829
2009-01-08

Reducing Agent Composition

#176
20080317643
2008-12-25

Engine exhaust gas purifier

#177
20080292519
2008-11-27

Bifunctional catalysts for selective ammonia oxidation

#178
20080286184
2008-11-20

Selective catalytic reduction type catalyst

#179
20070277507
2007-12-06

Enhanced hybrid de-NOx system

#180
20060039843
2006-02-23

Zone coated catalyst to simultaneously reduce NOand unreacted ammonia

#181
18549174
2024-01-09

Pollutant abatement device of an internal combustion engine and pollutant abatement system comprising the device

#182
17740362
2023-08-22

System, apparatus, and method for diesel exhaust fluid (DEF) dosing

#183
17538505
2022-12-06

Aftertreatment system, dual fuel system, and dual fuel apparatus