ClassID:

30393

B01D2255/2061 - CPC Classification

Classification description:

Catalysts; Metals or compounds thereof; Rare earth metals Yttrium

Recent Application in this class:
#1
20250367603
2025-12-04

TWO-LAYER, THREE-WAY CATALYST WITH SIGNIFICANTLY IMPROVED CO CONVERSION

#2
20250303365
2025-10-02

EXHAUST GAS PURIFICATION CATALYST

#3
20250153145
2025-05-15

CERIUM- AND ZIRCONIUM-BASED MIXED OXIDES

#4
20250041839
2025-02-06

CATALYTICALLY ACTIVE PARTICLE FILTER WITH A HIGH DEGREE OF FILTRATION EFFICIENCY

#5
20240390878
2024-11-28

GRAIN BOUNDARY AND SURFACE-DOPED RARE EARTH MANGANESE-ZIRCONIUM COMPOSITE COMPOUND AND PREPARATION METHOD AND USE THEREOF

#6
20240238764
2024-07-18

HYDROCARBON REDUCTION CATALYST AND VEHICLE EXHAUST GAS PURIFICATION DEVICE COMPRISING THE SAME

#7
20240238725
2024-07-18

CATALYST COMPOSITION

#8
20240149260
2024-05-09

EXHAUST GAS PURIFICATION DEVICE

#9
20240149257
2024-05-09

PARTICLE FILTER FOR EXHAUST GAS OF GASOLINE ENGINES

#10
20240109060
2024-04-04

CATALYTICALLY ACTIVE PARTICLE FILTER WITH A HIGH DEGREE OF FILTRATION EFFICIENCY

#11
20240109058
2024-04-04

RARE EARTH ELEMENT CONTAINING ZEOLITIC MATERIAL HAVING THE AEI FRAMEWORK TYPE AND COATED MONOLITH SUBSTRATE

#12
20240017213
2024-01-18

CATALYTICALLY ACTIVE PARTICLE FILTER HAVING A HIGH DEGREE OF FILTERING EFFICIENCY

#13
20230356198
2023-11-09

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

#14
20230330649
2023-10-19

MSECT-4 molecular sieves with off and ERI topologies, preparation method therefor, and applications thereof

#15
20230321636
2023-10-12

OXIDATION CATALYST COMPRISING A PLATINUM GROUP METAL AND A BASE METAL OR METALLOID OXIDE

#16
20230285899
2023-09-14

Catalytically active particulate filter

#17
20230271164
2023-08-31

Ce-Zr COMPOSITE OXIDE AND EXHAUST GAS PURIFICATION CATALYST USING SAME

#18
20230201770
2023-06-29

CATALYST FOR PURIFICATION OF EXHAUST GAS

#19
20230090959
2023-03-23

CERIUM-ZIRCONIUM OXIDE-BASED OXYGEN ION CONDUCTOR (CZOIC) MATERIALS WITH HIGH OXYGEN MOBILITY

#20
20230045409
2023-02-09

Double-layer three-way catalyst with further improved ageing stability

#21
20230043657
2023-02-09

Catalyst for catalytic reduction of industrial flue gas SOwith CO to prepare sulfur, method for preparing same and use thereof

#22
20220297091
2022-09-22

Mixed oxide based on cerium and zirconium

#23
20220176355
2022-06-09

Catalytically active particulate filter

#24
20220168721
2022-06-02

CATALYTICALLY ACTIVE PARTICULATE FILTER

#25
20220119324
2022-04-21

Processes for converting benzene and/or toluene via methylation

#26
20220080399
2022-03-17

JMZ-1, A CHA-CONTAINING ZEOLITE AND METHODS OF PREPARATION

#27
20220080393
2022-03-17

Zirconia-based aqueous np-dispersion for use in coating filter substrates

#28
20220064017
2022-03-03

Nanocrystal-sized cerium-zirconium-aluminum oxide material and method of making the same

#29
20210402378
2021-12-30

Exhaust-gas purification catalyst and exhaust-gas treatment apparatus

#30
20210299638
2021-09-30

Exhaust gas purification catalyst, exhaust gas purification method, and production method for exhaust gas purification catalyst

#31
20210162385
2021-06-03

Rare earth element containing aluminum-rich zeolitic material

#32
20210086135
2021-03-25

Catalytically active particulate filter

#33
20210086134
2021-03-25

Catalytically active particulate filter

#34
20210079822
2021-03-18

Catalytically active particulate filter

#35
20210069684
2021-03-11

Manganese-containing diesel oxidation catalyst

#36
20210069680
2021-03-11

Catalyst comprising ceria-zirconia-oxygen storage material and process for its production

#37
20210069678
2021-03-11

Single-layer 3-way catalytic converter

#38
20210060539
2021-03-04

Method for preparing molecular sieve SCR catalyst, and catalyst prepared therethrough

#39
20210053030
2021-02-25

Supported catalyst for organic substance decomposition and organic substance decomposition device

#40
20210016259
2021-01-21

Supported catalyst for organic substance decomposition and organic substance decomposing apparatus

#41
20200406245
2020-12-31

Honeycomb-structured catalyst for organic substance decomposition and organic substance decomposing apparatus

#42
20200406236
2020-12-31

Catalyst for organic substance decomposition and organic substance decomposing apparatus

#43
20200392881
2020-12-17

Exhaust gas purification system

#44
20200306693
2020-10-01

Multi-layer three-way catalytic converter

#45
20200215518
2020-07-09

Nitrogen oxide reduction catalyst regenerable at low temperature

#46
20200188885
2020-06-18

Mixed cerium- and zirconium-based oxide

#47
20200171472
2020-06-04

JMZ-1, a CHA-containing zeolite and methods of preparation

#48
20200147592
2020-05-14

Base Metal Catalyst and Method of Using Same

#49
20200129972
2020-04-30

Filter element for decomposing contaminants, system for decomposing contaminants and method using the system

#50
20200129924
2020-04-30

Methods for the treatment of a flue gas stream using catalytically-enhanced sorbent compositions

#51
20200114334
2020-04-16

Oxygen storage material and method for producing the same

#52
20200114311
2020-04-16

Catalytically enhanced compositions for efficient removal of contaminants in flue gas streams

#53
20200070130
2020-03-05

Organic matter decomposition catalyst, organic matter decomposition aggregate, and organic matter decomposition apparatus

#54
20200055039
2020-02-20

EXHAUST GAS PURIFYING FILTER AND PRODUCTION METHOD THEREOF

#55
20190345172
2019-11-14

Rare earth-based metal-organic framework for moisture removal and control in confined spaces

#56
20190336945
2019-11-07

Pd-supporting Zr-based composite oxide

#57
20190299192
2019-10-03

Catalytic article comprising combined PGM and OSC

#58
20190178128
2019-06-13

Titania-doped zirconia as platinum group metal support in catalysts for treatment of combustion engine exhausts streams

#59
20190168188
2019-06-06

Cerium- and zirconium-based mixed oxide

#60
20190145298
2019-05-16

Catalytic converter substrates comprising triply periodic minimal surfaces

#61
20190134617
2019-05-09

Ion-exchanged molecular sieve catalysts exhibiting reduced N2O emissions

#62
20190134608
2019-05-09

CERIUM-AND ZIRCONIUM-BASED MIXED OXIDES

#63
20190093531
2019-03-28

Exhaust gas purification catalyst

#64
20190023992
2019-01-24

Particle including atomic-scale channel, method of preparing the same, and catalyst including the same

#65
20190015820
2019-01-17

Exhaust gas purification device

#66
20190009244
2019-01-10

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

#67
20190009202
2019-01-10

Multifunctional filter medium, and method and apparatus for manufacturing same

#68
20180361360
2018-12-20

Catalyst system for lean gasoline direct injection engines

#69
20180353893
2018-12-13

REMOVAL OF HETEROATOM-CONTAINING COMPOUNDS FROM FLUIDS

#70
20180297014
2018-10-18

Exhaust gas treatment catalyst

#71
20180282350
2018-10-04

Rare earth-based metal-organic framework for moisture removal and control in confined spaces

#72
20180252139
2018-09-06

Oxygen storage/release material

#73
20180229220
2018-08-16

Low cost oxidation catalysts for VOC and halogenated VOC emission control

#74
20180207620
2018-07-26

Lean NOx Trapping Materials, Washcoats, and Methods of Making and Using The Same

#75
20180169634
2018-06-21

Porous ceramic body to reduce emissions

#76
20180112577
2018-04-26

Porous material, honeycomb structure, and method of producing porous material

#77
20180094559
2018-04-05

NOx adsorber catalyst

#78
20180093249
2018-04-05

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

#79
20180071679
2018-03-15

Automotive Catalysts With Palladium Supported In An Alumina-Free Layer

#80
20180065111
2018-03-08

Catalyst for purifying exhaust gas

#81
20180028971
2018-02-01

Methods for the manufacture of a sorbent composition having a catalyst component

#82
20180028970
2018-02-01

Methods for the treatment of a flue gas stream using catalytically-enhanced sorbent compositions

#83
20180021757
2018-01-25

Rhodium-containing catalysts for automotive emissions treatment

#84
20180021756
2018-01-25

Platinum group metal (PGM) catalysts for automotive emissions treatment

#85
20180001303
2018-01-04

COMPLEX OXIDE, METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFYING CATALYST

#86
20180001294
2018-01-04

Method for manufacturing activated carbon

#87
20170368536
2017-12-28

Double-layer three-way catalyst with improved aging stability

#88
20170348674
2017-12-07

Exhaust gas purifying catalyst

#89
20170304814
2017-10-26

Method for producing catalyst fibrous structure

#90
20170284251
2017-10-05

Titania-doped zirconia as platinum group metal support in catalysts for treatment of combustion engine exhausts streams

#91
20170209854
2017-07-27

Exhaust gas-purifying catalyst

#92
20170203282
2017-07-20

Noble metal-free catalyst compositions

#93
20170197179
2017-07-13

Catalyst for internal combustion engine exhaust gas purification, and system for same

#94
20170189892
2017-07-06

LAYERED CATALYSTS FOR GASOLINE ENGINE EXHAUST

#95
20170028387
2017-02-02

Catalyst composition for purifying exhaust gas and exhaust gas purifying catalyst

#96
20170007987
2017-01-12

Exhaust gas oxidation catalyst for compressed natural gas combustion system

#97
20160296910
2016-10-13

Doped catalyst support materials having oxygen storage capacity (OSC) and method of making thereof

#98
20160288103
2016-10-06

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

#99
20160279607
2016-09-29

Exhaust gas purifying catalyst

#100
20160228853
2016-08-11

CATALYST MATERIAL FOR EXHAUST GAS PURIFICATION AND METHOD FOR PRODUCING SAME

#101
20160228852
2016-08-11

Lean NOtraps, trapping materials, washcoats, and methods of making and using the same

#102
20160214092
2016-07-28

Exhaust gas purification catalyst for motor vehicle

#103
20160166988
2016-06-16

HIGHLY ACIDIC COMPOSITIONS COMPRISING ZIRCONIUM AND SILICON OXIDES AND AN OXIDE OF AT LEAST ONE OTHER ELEMENT SELECTED FROM AMONG TITANIUM, ALUMINUM, TUNGSTEN, MOLYBDENUM, CERIUM, IRON, TIN, ZINC, AND MANGANESE

#104
20160136618
2016-05-19

Sulfur-Resistant Synergized PGM Catalysts for Diesel Oxidation Application

#105
20160129432
2016-05-12

Filter element for decomposing contaminants, system for decomposing contaminants and method using the system

#106
20160123920
2016-05-05

Nitrogen oxide decomposition material and use thereof

#107
20160121300
2016-05-05

Catalyst composition and exhaust gas purifying method

#108
20160001228
2016-01-07

Perovskite with an ovlerlayer SCR component as an ammonia oxidation catalyst and a system for exhaust emission control on diesel engines

#109
20150375206
2015-12-31

Catalytic converter

#110
20150375203
2015-12-31

Precipitated and calcined composition based on zirconium oxide and cerium oxide

#111
20150367330
2015-12-24

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

#112
20150367328
2015-12-24

Exhaust gas purification catalyst and exhaust gas purification method using said catalyst

#113
20150352533
2015-12-10

Base metal activated rhodium coatings for catalysts in three-way catalyst (TWC) applications

#114
20150352532
2015-12-10

Three-way catalyst systems including Fe-activated Rh and Ba-Pd material compositions

#115
20150352531
2015-12-10

Rhodium-iron catalysts

#116
20150352494
2015-12-10

Three-way catalyst systems including Nb—Zr—Al-mixed oxide supports, Ba—Pd, and Rh—Fe material compositions

#117
20150352493
2015-12-10

Catalytic articles containing platinum group metals and non-platinum group metals and methods of making and using same

#118
20150343424
2015-12-03

EXHAUST GAS PURIFICATION CATALYST, METHOD OF PRODUCING THE SAME, AND EXHAUST GAS PURIFICATION METHOD USING THE SAME

#119
20150343378
2015-12-03

Catalytically enhanced compositions for efficient removal of contaminants in flue gas streams

#120
20150321175
2015-11-12

Complex oxide, method for producing same, and exhaust gas purifying catalyst

#121
20150290627
2015-10-15

Systems and methods for using copper-manganese spinel as active phase for diesel oxidation applications

#122
20150290622
2015-10-15

Catalyst carrier and exhaust gas purifying catalyst

#123
20150266002
2015-09-24

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

#124
20150251955
2015-09-10

Ceramic materials for gas separation and oxygen storage

#125
20150231563
2015-08-20

Method for purifying exhaust gas and for regenerating an oxidation catalyst

#126
20150196902
2015-07-16

PALLADIUM SOLID SOLUTION CATAYST AND METHODS OF MAKING

#127
20150165423
2015-06-18

Manganese-containing diesel oxidation catalyst

#128
20150165418
2015-06-18

Compositions of lean NOtrap (LNT) systems and methods of making and using same

#129
20150128576
2015-05-14

Exhaust gas purification system and exhaust gas purification method

#130
20150111729
2015-04-23

Exhaust gas treatment catalyst

#131
20150087503
2015-03-26

Exhaust gas purification catalyst

#132
20150047323
2015-02-19

Multi-cell structure for automotive catalyst support

#133
20150045212
2015-02-12

Exhaust gas purification catalyst

#134
20150017083
2015-01-15

Coating for reducing nitrogen oxides

#135
20140357480
2014-12-04

Exhaust gas purification catalyst

#136
20140356243
2014-12-04

Systems and methods for providing ZPGM perovskite catalyst for diesel oxidation applications

#137
20140334989
2014-11-13

ZPGM Diesel Oxidation Catalysts and methods of making and using same

#138
20140301907
2014-10-09

Diesel exhaust gas purification catalyst and diesel exhaust gas purification system

#139
20140274675
2014-09-18

Oxidation catalyst systems compositions and methods thereof

#140
20140221198
2014-08-07

Catalyst carrier for exhaust gas purification and catalyst for exhaust gas purification

#141
20140213439
2014-07-31

Catalyst

#142
20140179515
2014-06-26

Complex oxide, method for producing same, and exhaust gas purification catalyst

#143
20140154160
2014-06-05

Bimetallic catalyst

#144
20140072492
2014-03-13

Composition based on zirconium oxide and on at least one oxide of a rare earth other than cerium, having a specific porosity, processes for preparing same and use thereof in catalysis

#145
20140041366
2014-02-13

Catalytic converter for the selective catalytic reduction of nitrogen oxides in the exhaust gas of diesel engines

#146
20140037524
2014-02-06

Catalyst for purifying exhaust gas

#147
20130236381
2013-09-12

Denitration catalyst composition and method of denitration using same

#148
20130236380
2013-09-12

Palladium solid solution catayst and methods of making

#149
20130189172
2013-07-25

Catalyst for removing nitrogen oxides from the exhaust gas of diesel engines

#150
20130142713
2013-06-06

Composition containing oxides of zirconium, cerium and at least one other rare earth and having a specific porosity, method for preparing same and use thereof in catalysis

#151
20130052108
2013-02-28

Composition containing oxides of zirconium, cerium and another rare earth having reduced maximum reducibility temperature, a process for preparation and use thereof in the field of catalysis

#152
20120328500
2012-12-27

HIGHLY ACIDIC COMPOSITIONS COMPRISING ZIRCONIUM AND SILICON OXIDES AND AN OXIDE OF AT LEAST ONE OTHER ELEMENT SELECTED FROM AMONG TITANIUM, ALUMINUM, TUNGSTEN, MOLYBDENUM, CERIUM, IRON, TIN, ZINC, AND MANGANESE

#153
20120315204
2012-12-13

EXHAUST PURIFICATION DEVICE AND EXHAUST PURIFICATION METHOD FOR DIESEL ENGINE

#154
20120309614
2012-12-06

COMPLEX OXIDE, METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFYING CATALYST

#155
20120302438
2012-11-29

Complex oxide, method for producing same and exhaust gas purifying catalyst

#156
20120294786
2012-11-22

Exhaust purification device and exhaust purification method for diesel engine

#157
20120240554
2012-09-27

Manganese-based oxides promoted lean NOtrap (LNT) catalyst

#158
20120189503
2012-07-26

Exhaust-gas purification catalytic system

#159
20120128934
2012-05-24

Part comprising a substrate carrying a ceramic coating layer

#160
20120124975
2012-05-24

Diesel oxidation catalyst articles and methods of making and using

#161
20120122672
2012-05-17

Exhaust gas-purifying catalyst

#162
20120122667
2012-05-17

Exhaust gas-purifying catalyst

#163
20120118149
2012-05-17

Ceramic materials for gas separation and oxygen storage

#164
20120094827
2012-04-19

EXHAUST GAS-PURIFYING CATALYST AND METHOD OF PRODUCING SAME

#165
20120058020
2012-03-08

Honeycomb filter and method for manufacturing honeycomb filter

#166
20120027654
2012-02-02

Catalyst for purifying exhaust gas

#167
20110287928
2011-11-24

Low level noble metal-supporting three-way catalyst

#168
20110277452
2011-11-17

Exhaust gas cleaning catalyst, exhaust gas cleaning device, and system comprising internal combustion engine

#169
20110237429
2011-09-29

Exhaust gas purification catalyst

#170
20110237428
2011-09-29

EXHAUST GAS-PURIFYING CATALYST

#171
20110209466
2011-09-01

CATALYST COMPOSITION AND CATALYTIC REDUCTION SYSTEM COMPRISING YTTRIUM

#172
20110203264
2011-08-25

Diesel exhaust gas purification catalyst and diesel exhaust gas purification system

#173
20110118113
2011-05-19

EXHAUST GAS PURIFYING CATALYST

#174
20110111952
2011-05-12

Exhaust gas purifying catalyst and method for producing the same

#175
20110111949
2011-05-12

Exhaust gas-purifying catalyst

#176
20110088377
2011-04-21

EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE

#177
20110064639
2011-03-17

Composite oxide

#178
20110045968
2011-02-24

Exhaust gas purification catalyst

#179
20110033352
2011-02-10

CATALYST/CATALYST SUPPORT COMPOSITIONS COMPRISING THE OXIDES OF ZIRCONIUM, YTTRIUM AND TUNGSTEN

#180
20100247407
2010-09-30

HIGHLY ACIDIC COMPOSITIONS COMPRISING ZIRCONIUM AND SILICON OXIDES AND AN OXIDE OF AT LEAST ONE OTHER ELEMENT SELECTED FROM AMONG TITANIUM, ALUMINUM, TUNGSTEN, MOLYBDENUM, CERIUM, IRON, TIN, ZINC, AND MANGANESE

#181
20100204036
2010-08-12

NOx purifying catalyst

#182
20100146935
2010-06-17

NOstorage materials for sensor applications

#183
20100071347
2010-03-25

Exhaust purification device of an internal combustion engine

#184
20090241514
2009-10-01

CATALYTIC CONVERTER FOR THE TREATMENT OF COMBUSTION EXHAUST GASES

#185
20090145113
2009-06-11

Exhaust purification device of internal combustion engine

#186
20080127634
2008-06-05

Hybrid catalyst for NOx reduction using fuel hydrocarbons as reductant

#187
20080000222
2008-01-03

Exhaust gas cleaning catalyst, exhaust gas cleaning device, and system comprising internal combustion engine

#188
20070245723
2007-10-25

Exhaust purification device of internal combustion engine

#189
20070204595
2007-09-06

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

#190
20070031310
2007-02-08

Reduction of NOx emissions using a staged silver/alumina catalyst system

#191
20060133969
2006-06-22

Exhaust system for a lean burn internal combustion engine

#192
20050145827
2005-07-07

SOtrap for diesel and lean-burn gasoline automotive applications

#193
20050089456
2005-04-28

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

#194
20050059547
2005-03-17

Cerium-zirconium composite metal oxide

#195
20050016164
2005-01-27

Exhaust line for an internal combustion engine