ClassID:

137912

F01N13/002 - CPC Classification

Classification description:

Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups  - , , Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines

Recent Application in this class:
#1
20250314190
2025-10-09

HANDHELD WORK APPARATUS, AND EXHAUST GAS AFTER-TREATMENT UNIT FOR A HANDHELD WORK APPARATUS, AND EXHAUST MUFFLER

#2
20250297563
2025-09-25

SILENCER, COOLING SYSTEM, MOTOR SYSTEM AND GENERATOR SYSTEM

#3
20250270947
2025-08-28

PURIFICATION SYSTEM

#4
20250250924
2025-08-07

TRACTOR

#5
20250250923
2025-08-07

TRACTOR

#6
20250250922
2025-08-07

SOUND-ATTENUATING DEVICES

#7
20250237164
2025-07-24

METHODS AND SYSTEMS FOR A FUEL OPERATED HEATER

#8
20240217486
2024-07-04

WORK VEHICLE WITH EXTERIOR DEBRIS REMOVAL SYSTEM

#9
20230358153
2023-11-09

NOISE REDUCTION SYSTEMS FOR AEROSOL COLLECTORS

#10
20230332529
2023-10-19

System and method for treating gas turbine exhaust gas

#11
20230268199
2023-08-24

GAS EXHAUST APPARATUS AND INTAKE LINE AUTOMATIC CLOSING APPARATUS USED FOR GAS EXHAUST APPARATUS

#12
20230212974
2023-07-06

Autonomous auxiliary DEF supply system with purge control

#13
20230118454
2023-04-20

Tractor

#14
20230030215
2023-02-02

Work machine with directional air intake assembly

#15
20220412200
2022-12-29

Cover assembly, pipe assembly and turbine fracturing unit

#16
20220333542
2022-10-20

Controller for hybrid electric vehicle and method for controlling hybrid electric vehicle

#17
20220010716
2022-01-13

System and method for low CO emission engine

#18
20210310398
2021-10-07

Vibrating plate with hood optimized for noise reduction

#19
20210219492
2021-07-22

Riding lawn mower

#20
20210033017
2021-02-04

Autonomous auxiliary DEF supply system with purge control

#21
20210025302
2021-01-28

Externally mounted in-line exhaust gas valve

#22
20210025301
2021-01-28

Externally mounted in-line exhaust gas valve

#23
20200318523
2020-10-08

Exhaust fluid collision type muffler

#24
20200271042
2020-08-27

Exhaust structure for saddle riding vehicle

#25
20200240312
2020-07-30

Mixer

#26
20200141295
2020-05-07

Vacuum cleaner and electric motor module thereof

#27
20200102877
2020-04-02

Pulse exhaust pipe and diesel engine installed with pulse exhaust pipe

#28
20200102855
2020-04-02

Emission reducing louvers

#29
20200032694
2020-01-30

Autonomous auxiliary DEF supply system with purge control

#30
20190360379
2019-11-28

MODULAR MUFFLER ASSEMBLY AND METHOD

#31
20190344658
2019-11-14

Industrial vehicle

#32
20190323438
2019-10-24

Combined engine systems

#33
20190264767
2019-08-29

LAWN CARE VEHICLE

#34
20190264595
2019-08-29

System and method for low CO emission engine

#35
20190249588
2019-08-15

Muffler unit

#36
20190055875
2019-02-21

Exhaust layout for off road vehicle

#37
20190024548
2019-01-24

Muffler

#38
20180363533
2018-12-20

Emissions control systems and methods

#39
20180334938
2018-11-22

Extraction apparatus

#40
20180128140
2018-05-10

UREA-WATER SOLUTION HEATING AND COOLING DEVICES FOR CONSTRUCTION EQUIPMENT

#41
20180111474
2018-04-26

Exhaust device of motorcycle

#42
20170271942
2017-09-21

Engine-driven working machine

#43
20170241322
2017-08-24

Aftertreatment module having replaceable catalyst housing

#44
20170217304
2017-08-03

Industrial vehicle

#45
20170138240
2017-05-18

System for treating the exhaust gases for a vehicle equipped with internal combustion engine

#46
20170096921
2017-04-06

Method for the operation of an exhaust gas aftertreatment system

#47
20170058750
2017-03-02

Emissions control systems and methods

#48
20170037764
2017-02-09

Emission control system for auxiliary diesel engines

#49
20160319728
2016-11-03

Mounting configuration for a heat duct in an electric generator

#50
20160281576
2016-09-29

Engine-driven generator

#51
20160281575
2016-09-29

Mobile recycler

#52
20160281572
2016-09-29

External air introduction apparatus

#53
20160273435
2016-09-22

Controller for exhaust heat conversion to heat and electricity

#54
20160273425
2016-09-22

EXHAUST DEVICE OF CONSTRUCTION MACHINE

#55
20160252029
2016-09-01

AFTERTREATMENT CONTROL SYSTEM

#56
20160160731
2016-06-09

Auxiliary diesel exhaust fluid systems

#57
20160152226
2016-06-02

Apparatus and method for activating catalyst of hybrid vehicle

#58
20160145820
2016-05-26

Integrated muffler for hydrovac system

#59
20160138457
2016-05-19

Exhaust mixer and method of making same

#60
20160010918
2016-01-14

Engine exhaust-driven heating device for use in portable surface drying equipment

#61
20150275477
2015-10-01

Construction machine

#62
20150267592
2015-09-24

Exhaust pipe structure of motorcycle

#63
20150267580
2015-09-24

Engine equipped with secondary air supply device

#64
20150267579
2015-09-24

Engine equipped with secondary air supply device

#65
20150240957
2015-08-27

Exhaust gate

#66
20150240698
2015-08-27

Engine device

#67
20150204214
2015-07-23

Method and apparatus for operating a gas turbine power plant at low load conditions with stack compliant emissions levels

#68
20150204051
2015-07-23

Construction machine

#69
20150183314
2015-07-02

MOVING VEHICLE EXHAUST COLLECTION SYSTEM

#70
20150166139
2015-06-18

Saddle-riding vehicle

#71
20150135687
2015-05-21

Exhaust device of motorcycle

#72
20150135686
2015-05-21

Working vehicle

#73
20150089956
2015-04-02

Method of exhaust gas treatment for a gas turbine system and exhaust gas treatment assembly

#74
20150004015
2015-01-01

Sound absorber for refrigerant compressor

#75
20150000258
2015-01-01

Work vehicle

#76
20140311148
2014-10-23

Exhaust apparatus of construction machine

#77
20140305107
2014-10-16

Air-cooled engine for working machine

#78
20140216370
2014-08-07

Engine and engine-operated working machine

#79
20140090920
2014-04-03

Exhaust system of saddle-ride type vehicle

#80
20140034171
2014-02-06

Bi-directional tractor exhaust system

#81
20140000574
2014-01-02

Muffler and engine-driven work machine

#82
20130263582
2013-10-10

Split Flow Exhaust Deflector

#83
20130125528
2013-05-23

Internal combustion engine system and method for controlling internal combustion engine system

#84
20130125524
2013-05-23

Emissions control systems and methods

#85
20120279199
2012-11-08

Muffler attachment system

#86
20120228053
2012-09-13

Silencer for a two-stroke motor of a power tool

#87
20120228049
2012-09-13

Arrangement of a silencer on a combustion motor with improved coupling to the cylinder

#88
20120210704
2012-08-23

Exhaust muffler for general-purpose engine

#89
20120186894
2012-07-26

EXHAUST GAS SYSTEM FOR A BUILDING MACHINE

#90
20120103720
2012-05-03

Engine

#91
20120103711
2012-05-03

Diesel particulate filter packaging and method of directing airflow in a skid steer machine

#92
20120102929
2012-05-03

Power systems with internally integrated aftertreatment and modular features

#93
20110017336
2011-01-27

Muffler attachment system

#94
20110000186
2011-01-06

Exhaust system for an internal combustion engine

#95
20100230205
2010-09-16

Muffler

#96
20100083512
2010-04-08

CHAIN SAW

#97
20100011754
2010-01-21

Exhaust gas muffler

#98
20100011752
2010-01-21

Exhaust muffler comprising a catalytic converter

#99
20090215333
2009-08-27

Outboard motor

#100
20090136387
2009-05-28

Diesel particulate filter system for auxiliary power units

#101
20090084626
2009-04-02

Muffler and working machine

#102
20090038879
2009-02-12

Muffler unit for general-purpose engine

#103
20090013673
2009-01-15

MUFFLER FOR SMALL ENGINE

#104
20090007435
2009-01-08

Power cutter

#105
20080256938
2008-10-23

Explosion protection system with integrated emission control device

#106
20080245604
2008-10-09

Passive secondary air muffler

#107
20080219767
2008-09-11

Road finisher

#108
20080214502
2008-09-04

Apparatus and Method for Dispersing Insecticide

#109
20080164092
2008-07-10

Silencer with fin outlet

#110
20080135331
2008-06-12

Exhaust muffler

#111
20080127641
2008-06-05

EXHAUST SYSTEM

#112
20080110160
2008-05-15

Catalyst chamber

#113
20080053076
2008-03-06

EXHAUST DEVICE WITH A FLAME RESONATOR

#114
20080035421
2008-02-14

Exhaust deflector for a muffler

#115
20080035098
2008-02-14

Portable handheld work apparatus

#116
20080010979
2008-01-17

Exhaust Gas Purification Apparatus for Engine

#117
20070284187
2007-12-13

Exhaust deflector for a muffler

#118
20070187174
2007-08-16

COLLAPSIBLE MUFFLER SYSTEM

#119
20070113540
2007-05-24

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

#120
20060113145
2006-06-01

Fuel cell vehicle

#121
20060112683
2006-06-01

Exhaust system in an implement driven by internal combustion engine

#122
20060102420
2006-05-18

Muffler for exhaust gas

#123
20060026953
2006-02-09

Catalyst-attached muffler for internal combustion engine

#124
20050263344
2005-12-01

Exhaust gas muffler

#125
20050252715
2005-11-17

Muffler for compact combustion engines

#126
20050224284
2005-10-13

Engine exhaust muffler with exhaust emission control function

#127
20050217931
2005-10-06

Method and apparatus for venting exhaust gas from an engine

#128
20050191148
2005-09-01

Attachment pin for an exhaust-gas muffler

#129
20050150719
2005-07-14

Exhaust silencer

#130
20050150716
2005-07-14

Exhaust apparatus for small-sized engine

#131
20050139418
2005-06-30

Exhaust-gas muffler

#132
20050029039
2005-02-10

Exhaust gas muffler

#133
20050028516
2005-02-10

Exhaust gas muffler

#134
18341223
2024-12-03

Cooling flow injection to alter exhaust boundary conditions in a turbo-compounded engine

#135
17324105
2022-05-10

Multiple duct system for conveying exhaust gas from oceangoing vessels to a treatment system

#136
17144414
2023-06-06

Marine muffler with integral bypass water management

#137
16429715
2021-01-12

Marine muffler with integral bypass water management

#138
15877467
2019-06-04

Marine muffler with integral bypass water management

#139
15584556
2019-07-09

Aerodynamically conformal muffler

#140
15381184
2018-01-23

Marine muffler with integral bypass water management

#141
15046891
2017-04-18

Multi-muffler sound attenuator assembly

#142
14521818
2016-10-18

Exhaust arrangements for marine propulsion devices