ClassID:

137885

F01N3/2885 - CPC Classification

Classification description:

Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus; Construction of catalytic reactors; Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single housing

Recent Application in this class:
#1
20250388285
2025-12-25

Straddle-Type Vehicle

#2
20240208599
2024-06-27

Straddle-Type Vehicle

#3
20240159181
2024-05-16

V-type engine and work machine

#4
20240159177
2024-05-16

V-type engine including catalyst extending in height direction of engine body and work machine including same

#5
20220401944
2022-12-22

Method for unblocking pores in a selective catalytic reduction catalyst

#6
20220290600
2022-09-15

Exhaust device of engine and work machine

#7
20220258825
2022-08-18

Straddle-type vehicle

#8
20220250704
2022-08-11

Straddle-Type Vehicle

#9
20220212169
2022-07-07

AUTOMOTIVE 3-WAY CATALYST SYSTEM CONTAINING A TAIL PIPE CATALYST

#10
20220042441
2022-02-10

Exhaust device

#11
20210262374
2021-08-26

ACOUSTIC VOLUME AND INSULATION IN HOT-END OF EXHAUST SYSTEMS

#12
20210115823
2021-04-22

Two-stroke engine exhaust resonator with exhaust gas catalytic converter

#13
20200408130
2020-12-31

Exhaust gas aftertreatment device

#14
20200353813
2020-11-12

Exhaust gas purification device

#15
20200300137
2020-09-24

Outlet for exhaust gas aftertreatment module

#16
20200263578
2020-08-20

Exhaust muffler structure

#17
20200173320
2020-06-04

ACOUSTIC VOLUME IN HOT-END OF EXHAUST SYSTEMS

#18
20200032691
2020-01-30

EXHAUST PIPE DEVICE OF SADDLE-RIDING VEHICLE

#19
20190170043
2019-06-06

MUFFLER FOR SINGLE-CYLINDER DIESEL ENGINE

#20
20190120116
2019-04-25

Muffler

#21
20190093528
2019-03-28

Method and apparatus to enable package space reduction in a vehicle exhaust system

#22
20190032531
2019-01-31

ENGINE AND ENGINE WORK MACHINE

#23
20180347438
2018-12-06

Exhaust gas purification system

#24
20180274426
2018-09-27

Exhaust device

#25
20180202343
2018-07-19

Exhaust gas sensor mounting structure

#26
20180163601
2018-06-14

Mixing apparatus for an exhaust gas aftertreatment system, exhaust gas aftertreatment system and internal combustion engine

#27
20180163590
2018-06-14

Exhaust gas purification system and controlling method thereof

#28
20180016956
2018-01-18

Engine and engine-driven working machine

#29
20170349233
2017-12-07

VEHICLE WITH STRUCTURE FOR IMPROVED ENGINE OUTPUT

#30
20170276043
2017-09-28

Exhaust after-treatment assembly for engine system

#31
20170167333
2017-06-15

Exhaust muffler for combustion engine

#32
20170159531
2017-06-08

Exhaust structure of vehicle

#33
20170082006
2017-03-23

Silencer and catalytic converter apparatus with adjustable blocking panel

#34
20170009639
2017-01-12

Engine device and stationary work machine having same mounted thereon

#35
20170002712
2017-01-05

Catalyst storage case, exhaust duct, and engine

#36
20160222865
2016-08-04

Exhaust muffler

#37
20160215671
2016-07-28

Exhaust gas purification device

#38
20160146082
2016-05-26

Module for the metered provision of a liquid

#39
20160146081
2016-05-26

Silencer for mid-bed air injection mixing

#40
20150275721
2015-10-01

System and method for tuned exhaust

#41
20150267586
2015-09-24

Multi-piece muffler housing

#42
20150233276
2015-08-20

MODULAR ASSEMBLY FOR AFTERTREATMENT SYSTEM

#43
20150219041
2015-08-06

Engine

#44
20150159537
2015-06-11

Exhaust gas aftertreatment module

#45
20150152773
2015-06-04

Exhaust system for motorcycle

#46
20140373821
2014-12-25

Engine exhaust gas purification device

#47
20140348715
2014-11-27

Exhaust treatment device

#48
20140298782
2014-10-09

Arrangement for fitting an exhaust cleaning unit in an exhaust passage

#49
20140223891
2014-08-14

Two-stroke lean burn gas engine with a silencer-catalytic converter

#50
20140208723
2014-07-31

Catalytic converter and muffler

#51
20140174057
2014-06-26

Exhaust gas aftertreatment module

#52
20130255238
2013-10-03

Catalyst converter device for purifying exhaust gas and saddle-ride type vehicle

#53
20130230434
2013-09-05

Four cycle internal combustion engine exhaust

#54
20130086890
2013-04-11

Exhaust gas purification system

#55
20130075192
2013-03-28

Muffler for small-sized vehicle

#56
20120228053
2012-09-13

Silencer for a two-stroke motor of a power tool

#57
20120224998
2012-09-06

Exhaust gas denitrifying system having noise-reduction structure

#58
20120124968
2012-05-24

Mixing pipe for SCR mufflers

#59
20120103719
2012-05-03

Exhaust filter

#60
20120024275
2012-02-02

Two-stroke internal combustion engine

#61
20110296819
2011-12-08

Multiple-shell silencer / rear shell port

#62
20110225953
2011-09-22

Exhaust chamber in motorcycle exhaust system

#63
20110219749
2011-09-15

Exhaust system having multiple inlets and multiple outlets

#64
20110162358
2011-07-07

Exhaust gas purification system for diesel engines of utility motor vehicles

#65
20110107750
2011-05-12

Exhaust emission control device

#66
20110030352
2011-02-10

Two-stroke lean burn gas engine with a silencer/catalytic converter

#67
20100242451
2010-09-30

Exhaust gas-treating device

#68
20100205946
2010-08-19

Engine exhaust heat recovery device, and energy supply apparatus using the same

#69
20100139626
2010-06-10

Drive unit with cooling circuit and separate heat recovery circuit

#70
20100107613
2010-05-06

Black exhaust purification apparatus for diesel engine

#71
20100061898
2010-03-11

Exhaust gas retreatment device

#72
20100050618
2010-03-04

Exhaust gas after treatment apparatus of a motor vehicle

#73
20090272106
2009-11-05

Exhaust gas treatment unit

#74
20090266327
2009-10-29

Vehicle with secondary air supply passage

#75
20090263296
2009-10-22

CATALYST WITH BIOREACTOR FOR COMBUSTION ENGINES

#76
20090188246
2009-07-30

Deflector Plate to Enhance Fluid Stream Contact with a Catalyst

#77
20090166115
2009-07-02

VEHICLE WITH STRUCTURE FOR IMPROVED ENGINE OUTPUT

#78
20090165448
2009-07-02

Catalyst arrangement construction of motorcycle

#79
20090145687
2009-06-11

Motorcycle exhaust muffler

#80
20090107761
2009-04-30

Exhaust sound and emission control systems

#81
20090020359
2009-01-22

Double-flow exhaust system for an internal-combustion engine

#82
20090013673
2009-01-15

MUFFLER FOR SMALL ENGINE

#83
20090007551
2009-01-08

Exhaust Gas Aftertreatment System

#84
20080307778
2008-12-18

Fixing Device of Catalyst Substrate

#85
20080282672
2008-11-20

Method and System for Controlling Emission from an Off-Road Engine

#86
20080271442
2008-11-06

Exhaust gas system for an internal combustion engine

#87
20080245604
2008-10-09

Passive secondary air muffler

#88
20080236941
2008-10-02

Exhaust system for saddle-ride type vehicle

#89
20080229734
2008-09-25

System for Purifying the Exhaust Gases Emitted by Internal Combustion Engines

#90
20080163613
2008-07-10

Vehicle exhaust system structure

#91
20080155966
2008-07-03

Exhaust Gas Purifier of Engine used in Locomotive

#92
20080127639
2008-06-05

Multiple-shell silencer / rear shell port

#93
20080110155
2008-05-15

Exhauster for motorcycle and motorcycle including exhauster

#94
20080072579
2008-03-27

Two-stroke lean burn gas engine with a silencer/catalytic converter

#95
20080053078
2008-03-06

Two-stroke lean burn gas engine with a silencer/catalytic converter

#96
20080053076
2008-03-06

EXHAUST DEVICE WITH A FLAME RESONATOR

#97
20080041043
2008-02-21

Exhaust treatment devices and methods for reducing sound using the exhaust treatment devices

#98
20080035418
2008-02-14

Exhaust sound and emission control systems

#99
20080010979
2008-01-17

Exhaust Gas Purification Apparatus for Engine

#100
20070290510
2007-12-20

Combustion Generator Enhancement Device

#101
20070289294
2007-12-20

Exhaust gas aftertreatment device for an internal combustion engine

#102
20070277517
2007-12-06

Exhaust pipe structure

#103
20070261907
2007-11-15

Exhaust device including elastically deformable annular member and vehicle with exhaust device

#104
20070261393
2007-11-15

Multi-cylinder internal combustion engine

#105
20070256673
2007-11-08

MOTORCYCLE DYNAMIC EXHAUST SYSTEM

#106
20070256409
2007-11-08

Exhaust device and vehicle with exhaust device

#107
20070245713
2007-10-25

Two-stroke lean burn gas engine with a silencer/catalytic converter

#108
20070193255
2007-08-23

Liquid reducing agent injection nozzle having novel structure

#109
20070158136
2007-07-12

Muffler and vehicle equipped with muffler

#110
20070158135
2007-07-12

Muffler and vehicle equipped with muffler

#111
20070144828
2007-06-28

Inlet metallic foam support coupled to precious metal catalyst for application on 4 stroke platforms

#112
20070119433
2007-05-31

Device for exhaust gas purification for spark-ignited engines

#113
20070113540
2007-05-24

Catalyst body and an exhaust system for a small-size engine and a method for producing the catalyst body

#114
20070107419
2007-05-17

Exhaust system for motorcycle

#115
20070104621
2007-05-10

Catalytic exhaust device for simplified installation or replacement

#116
20070012035
2007-01-18

Muffling apparatus having exhaust emission purifying function

#117
20060286013
2006-12-21

Engine exhaust system component having structure for accessing aftertreatment device

#118
20060283180
2006-12-21

Exhaust system with catalytic converter and motorcycle using the same

#119
20060266024
2006-11-30

Layout of catalyst of vehicle

#120
20060260867
2006-11-23

Silencer containing one or more porous bodies

#121
20060242952
2006-11-02

Exhaust system for motorcycle

#122
20060225951
2006-10-12

Muffler with catalytic converter

#123
20060185348
2006-08-24

Device for purifying exhaust gases

#124
20060171866
2006-08-03

Deflector plate to enhance fluid stream contact with a catalyst

#125
20060162995
2006-07-27

Muffler for an exhaust gas system

#126
20060156712
2006-07-20

Exhaust gas treatment system

#127
20060144236
2006-07-06

Electrostatic filtering and particle conversion in gaseous environments

#128
20060102420
2006-05-18

Muffler for exhaust gas

#129
20060101813
2006-05-18

Muffler device with catalysts for improving purifying exhaust gas of nitrogen oxides within a motorcycle exhaust pipe

#130
20060039836
2006-02-23

Meander-type catalytic converter

#131
20060026953
2006-02-09

Catalyst-attached muffler for internal combustion engine

#132
20060010860
2006-01-19

Catalyst-attached muffler for internal combustion engine

#133
20060005794
2006-01-12

Internal combustion engine cylinder and muffler assembly with catalytic converter

#134
20060000205
2006-01-05

Motorcycle dynamic exhaust system

#135
20050284140
2005-12-29

Reflection catalytic converter

#136
20050279571
2005-12-22

Exhaust sound and emission control systems

#137
20050263344
2005-12-01

Exhaust gas muffler

#138
20050262835
2005-12-01

Two-stroke lean burn gas engine with a silencer/catalytic converter

#139
20050247051
2005-11-10

Exhaust treatment control system for an internal combustion engine

#140
20050224284
2005-10-13

Engine exhaust muffler with exhaust emission control function

#141
20050223703
2005-10-13

Muffler with catalytic converter arrangement; and method

#142
20050217931
2005-10-06

Method and apparatus for venting exhaust gas from an engine

#143
20050199408
2005-09-15

Arcing electron stream apparatus and method

#144
20050191148
2005-09-01

Attachment pin for an exhaust-gas muffler

#145
20050115229
2005-06-02

Muffler with an integrated catalytic converter

#146
20050077104
2005-04-14

Serviceable muffler

#147
20050029039
2005-02-10

Exhaust gas muffler

#148
20050022515
2005-02-03

Motor vehicle having special arrangement of fuel tank, preliminary muffler and reduction agent tank