ClassID:

30441

B01D2255/9035 - CPC Classification

Classification description:

Catalysts; Physical characteristics of catalysts; Multi-zoned catalysts Three zones

Recent Application in this class:
#1
20260084140
2026-03-26

METHOD FOR THE MANUFACTURE OF A CATALYTIC GASOLINE PARTICULATE FILTER

#2
20260021449
2026-01-22

SELECTIVE CATALYTIC REDUCTION SYSTEM FOR EXHAUST GAS TREATMENT, AND EXHAUST GAS PURIFICATION APPARATUS FOR LEAN COMBUSTION ENGINES COMPRISING SELECTIVE CATALYTIC REDUCTION SYSTEM FOR EXHAUST GAS TREATMENT

#3
20250381525
2025-12-18

EXHAUST GAS PURIFICATION DEVICE AND METHOD FOR MANUFACTURING EXHAUST GAS PURIFICATION DEVICE

#4
20250288956
2025-09-18

Aftertreatment for Ammonia Fuelled Engine

#5
20250276309
2025-09-04

EXHAUST GAS PURIFICATION DEVICE AND METHOD FOR MANUFACTURING EXHAUST GAS PURIFICATION DEVICE

#6
20250214071
2025-07-03

LAYERED AND PARTITIONED CATALYST ARTICLE

#7
20250032983
2025-01-30

MANGANESE-CONTAINING CATALYTIC ARTICLES, EXHAUST GAS TREATMENT SYSTEMS, AND METHODS

#8
20240390853
2024-11-28

EXHAUST GAS PURIFICATION DEVICE

#9
20240269612
2024-08-15

SULFUR-CONTAINING ORGANIC COMPOUND ASSISTED METAL NANOPARTICLE SYNTHESIS FOR THREE-WAY CATALYSIS APPLICATION

#10
20240167410
2024-05-23

CATALYTIC ARTICLE COMPRISING VANADIUM-BASED CATALYST AND MOLECULAR SIEVE-BASED CATALYST

#11
20240109060
2024-04-04

CATALYTICALLY ACTIVE PARTICLE FILTER WITH A HIGH DEGREE OF FILTRATION EFFICIENCY

#12
20230405569
2023-12-21

EXHAUST GAS PURIFICATION CATALYST

#13
20230338940
2023-10-26

PERFORMANCE ENHANCEMENT OF A PLATINUM-CONTAINING CATALYST VIA EXHAUST GAS HYDROGEN ENRICHMENT

#14
20230323802
2023-10-12

EXHAUST GAS TREATMENT SYSTEM

#15
20230211323
2023-07-06

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

#16
20230143941
2023-05-11

CATALYSTS FOR GASOLINE EXHAUST GAS TREATMENTS WITH IMPROVED AMMONIA EMISSION CONTROL

#17
20220410133
2022-12-29

Low temperature NOadsorber with enhanced regeneration efficiency

#18
20220387983
2022-12-08

Exhaust gas purification device

#19
20220379293
2022-12-01

DIESEL OXIDATION CATALYST

#20
20220154621
2022-05-19

Exhaust Gas Purification Catalyst

#21
20220134314
2022-05-05

Tri-metal PGM catalysts for gasoline engine exhaust gas treatments

#22
20210379530
2021-12-09

Selective catalytic reduction catalyst on a filter substrate

#23
20210346878
2021-11-11

Three-zone two-layer TWC catalyst in gasoline waste gas applications

#24
20210252456
2021-08-19

Nitrogen oxide storage catalyst

#25
20210148273
2021-05-20

Exhaust gas cleaning catalyst

#26
20210101139
2021-04-08

Three-zone two-layer TWC catalyst in gasoline waste gas applications

#27
20200391187
2020-12-17

Multi-region TWC for treatment of exhaust gas from gasoline engine

#28
20200340383
2020-10-29

EXHAUST GAS PURIFICATION CATALYST

#29
20200215520
2020-07-09

ASC with platinum group metal in multiple layers

#30
20200129963
2020-04-30

Exhaust gas purification catalyst

#31
20200070133
2020-03-05

Bimetallic Cu/Mn catalysts for selective catalytic reduction

#32
20190353068
2019-11-21

Exhaust emission reduction system having an HC-trap and NOx-trap combination designed for operating under strategic lean conditions

#33
20190308173
2019-10-10

Zoned diesel oxidation catalyst

#34
20190299161
2019-10-03

Passive NOx adsorber

#35
20190291083
2019-09-26

Exhaust gas purification catalyst for internal combustion engine, and exhaust gas purifying method using exhaust gas purification catalyst

#36
20190168200
2019-06-06

Passive NOx adsorber

#37
20190162095
2019-05-30

Three-zone diesel oxidation catlayst

#38
20180353905
2018-12-13

Catalyzed filters with end coating for lean engine exhaust

#39
20180280945
2018-10-04

ASC with platinum group metal in multiple layers

#40
20180280877
2018-10-04

SCR with turbo and ASC/DOC close-coupled system

#41
20180280876
2018-10-04

ASC/DEC with rear-concentrated exotherm generation

#42
20180266290
2018-09-20

REAR ON-WALL DESIGN SCRF

#43
20180264446
2018-09-20

Catalytic wall-flow filter with an ammonia slip catalyst

#44
20180178198
2018-06-28

Layered automotive catalyst composites

#45
20180169634
2018-06-21

Porous ceramic body to reduce emissions

#46
20180111089
2018-04-26

Multifunctional filters for diesel emission control

#47
20180111088
2018-04-26

Multifunctional filters for diesel emission control

#48
20180085707
2018-03-29

Oxidation catalyst for a diesel engine exhaust

#49
20180001306
2018-01-04

Zoned diesel oxidation catalyst

#50
20170276049
2017-09-28

Honeycomb structure, and manufacturing method of honeycomb structure

#51
20170211455
2017-07-27

Exhaust System

#52
20170167335
2017-06-15

Catalyzed particulate filter

#53
20170151532
2017-06-01

Diesel oxidation catalyst having a capture region for exhaust gas impurities

#54
20170095805
2017-04-06

Passive NOadsorber

#55
20160367941
2016-12-22

Zoned exhaust system

#56
20160348558
2016-12-01

Aftertreatment module with reduced bypass flow

#57
20160158699
2016-06-09

Zoned catalyst system for reducing NO emissions

#58
20160008759
2016-01-14

Catalytic article for treating exhaust gas

#59
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

#60
20150375206
2015-12-31

Catalytic converter

#61
20150360175
2015-12-17

Air preheating and NOx reduction integrated reactor and reaction method

#62
20150238951
2015-08-27

Exhaust gas catalyst

#63
20150071839
2015-03-12

Catalyst component of a motor vehicle exhaust gas cleaning system and use of a catalyst component

#64
20150033715
2015-02-05

Zoned diesel oxidation catalyst

#65
20140260208
2014-09-18

Exhaust gas purifier

#66
20130104530
2013-05-02

SCR control system utilizing a differential NHand NOmeasurement using an exhaust gas sensor coupled with a micro SCR catalyst

#67
20120288427
2012-11-15

Catalyzed soot filter with layered design

#68
20120186229
2012-07-26

Zoned catalytic filters for treatment of exhaust gas

#69
20120159927
2012-06-28

Perovskite oxide compounds for use in exhaust aftertreatment systems

#70
20120117948
2012-05-17

Exhaust gas aftertreatment

#71
20110271664
2011-11-10

Integrated SCR and AMOx catalyst systems

#72
20110165040
2011-07-07

DEVICE FOR REMEDIATING EMISSIONS AND METHOD OF MANUFACTURE

#73
20100213518
2010-08-26

Impurity doped UV protection layer

#74
20100175372
2010-07-15

Compact diesel engine exhaust treatment system

#75
20060145303
2006-07-06

Impurity doped UV protection layer

#76
20050005597
2005-01-13

Exhaust system