Patents-Review.com
ClassID:

137750 ⎘

F01N1/08 - CPC Classification

Classification description:

Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling

Sub-classes:
Recent Application in this class:
#1
20260009348
2026-01-08

MUFFLER FOR AN EXHAUST SYSTEM AND METHOD FOR MAKING A MUFFLER

 #2
20260002458
2026-01-01

METHOD FOR BRAKING A LOW-OVERPRESSURE GAS FLOW

 #3
20250116216
2025-04-10

MUFFLER

 #4
20250003359
2025-01-02

EXHAUST GAS ASSEMBLY

 #5
20230392827
2023-12-07

Muffler with metallic meshed rings

 #6
20230349309
2023-11-02

Constant velocity muffler assembly

 #7
20230235690
2023-07-27

Exhaust restriction device for improved sensor signal

 #8
20230160325
2023-05-25

Exhaust system tuner tube to reduce standing wave

 #9
20220401944
2022-12-22

Method for unblocking pores in a selective catalytic reduction catalyst

 #10
20220389849
2022-12-08

MUFFLER VALVE AND MUFFLER

 #11
20220307399
2022-09-29

Vehicle exhaust system with silencer having exhaust jet deflector

 #12
20220298940
2022-09-22

Noise abatement system for internal combustion engines

 #13
20220274714
2022-09-01

Muffler

 #14
20220186642
2022-06-16

EXHAUST PIPE

 #15
20220042431
2022-02-10

Exhaust gas assembly

 #16
20210317763
2021-10-14

Insert assembly unit for a muffler of an exhaust system of an internal combustion engine

 #17
20210239017
2021-08-05

Exhaust system component

 #18
20210180487
2021-06-17

Air outlet sound absorber for a rotating electrical machine

 #19
20210080151
2021-03-18

Muffler with metallic meshed rings

 #20
20200080654
2020-03-12

Exhaust gas control valve and assembly including the same

 #21
20200056519
2020-02-20

Muffler for motor vehicles

 #22
20190368396
2019-12-05

Muffler for an exhaust system of an internal combustion engine

 #23
20190284984
2019-09-19

Exhaust device equipped with spark arrester

 #24
20190203619
2019-07-04

Exhaust system having tunable exhaust sound

 #25
20190162104
2019-05-30

Valvular-conduit exhaust manifold

 #26
20190147842
2019-05-16

Sound damping device for a duct or chamber

 #27
20190120115
2019-04-25

Silencer insert, silencer comprising the same and method for manufacturing a silencer insert

 #28
20190085744
2019-03-21

Exhaust device for internal combustion engine

 #29
20190078476
2019-03-14

Exhaust device for internal combustion engine

 #30
20190055866
2019-02-21

Exhaust device for internal combustion engine

 #31
20190040776
2019-02-07

Internal straight core

 #32
20190032531
2019-01-31

ENGINE AND ENGINE WORK MACHINE

 #33
20190024549
2019-01-24

Method for forming a collar in a muffler housing

 #34
20180202353
2018-07-19

Method to control an electrically-operated turbocharger in a supercharged internal combustion engine for increasing acoustical emission in the exhaust

 #35
20180179931
2018-06-28

Exhaust Mechanism

 #36
20180149053
2018-05-31

Exhaust gas muffler and method for the manufacture thereof

 #37
20180119594
2018-05-03

Exhaust pipe structure

 #38
20180051607
2018-02-22

Flutter dampened exhaust valve

 #39
20180016964
2018-01-18

Engine and engine-driven working machine

 #40
20170314435
2017-11-02

Muffler and/or exhaust apparatus and method of manufacture

 #41
20170219153
2017-08-03

Sound suppression apparatus

 #42
20170218831
2017-08-03

Muffler joint

 #43
20170211438
2017-07-27

CPAP DEVICE

 #44
20170191390
2017-07-06

Silencer

 #45
20170152778
2017-06-01

Reductant mixing system for an exhaust gas after-treatment device

 #46
20170145881
2017-05-25

Vehicle exhaust system with resistive patch

 #47
20170137268
2017-05-18

Industrial vehicle

 #48
20170058732
2017-03-02

Exhaust system having variable exhaust gas paths

 #49
20170051646
2017-02-23

Silencer

 #50
20170022861
2017-01-26

Exhaust silencer

 #51
20160347168
2016-12-01

Exhaust muffler for transverse installation in a vehicle

 #52
20160341084
2016-11-24

Engine system with turbulence assisted damping of low frequency sound

 #53
20160312673
2016-10-27

Exhaust muffler

 #54
20160281579
2016-09-29

Valvular-conduit manifold

 #55
20160281557
2016-09-29

Silencer for internal combustion engine

 #56
20160222848
2016-08-04

Exhaust muffler

 #57
20160201529
2016-07-14

EXHAUST TAILPIPE AUXILIARY SOUND ENHANCEMENT HOLE

 #58
20160084127
2016-03-24

Exhaust muffler device for combustion engine

 #59
20160061073
2016-03-03

Exhaust chamber for saddle-riding type vehicle

 #60
20150322831
2015-11-12

Sub-muffler and manufacturing method of sub-muffler

 #61
20150292375
2015-10-15

Sound-Attenuating Muffler Having Reduced Back Pressure

 #62
20150101885
2015-04-16

Structure of exhaust system for CDA engine

 #63
20150059913
2015-03-05

Exhaust pipe

 #64
20150047921
2015-02-19

Fluid flow noise mitigation structure and method

 #65
20150027566
2015-01-29

Valve device for exhaust gas flow path

 #66
20150014091
2015-01-15

Frequency-modifying muffler

 #67
20140366516
2014-12-18

Engine apparatus

 #68
20140353077
2014-12-04

Motorcycle

 #69
20140326534
2014-11-06

NATURAL VACUUM LEAK DETECTION NOISE ATTENUATION DEVICE

 #70
20140291067
2014-10-02

Exhaust silencing device

 #71
20140230418
2014-08-21

Assembly for purifying exhaust gases

 #72
20140116801
2014-05-01

Silencer and a method for producing same

 #73
20140102300
2014-04-17

Low pressure drop, high efficiency spark or particulate arresting devices and methods of use

 #74
20140090926
2014-04-03

Exhaust system of saddle-ride type vehicle

 #75
20140090924
2014-04-03

Exhaust system of saddle-ride type vehicle

 #76
20140069739
2014-03-13

Device and method for manipulating the exhaust outlet noise of a motor vehicle

 #77
20140000574
2014-01-02

Muffler and engine-driven work machine

 #78
20130291845
2013-11-07

Automatic choke for an engine

 #79
20130270034
2013-10-17

Silencing apparatus for vehicle

 #80
20130263582
2013-10-10

Split Flow Exhaust Deflector

 #81
20130233643
2013-09-12

Frequency-modifying muffler

 #82
20130213734
2013-08-22

Horizontally installed muffler having sporty tone

 #83
20130175114
2013-07-11

Hybrid silencer with gas-liquid separating function in fuel cell system

 #84
20130126266
2013-05-23

Q4 muffler assembly

 #85
20130056083
2013-03-07

Hybrid valve for attenuation of low frequency noise

 #86
20130001009
2013-01-03

Eductor exhaust silencer assembly with bypass gasflow

 #87
20120311984
2012-12-13

Exhaust gas purification device

 #88
20120279199
2012-11-08

Muffler attachment system

 #89
20120273301
2012-11-01

MUFFLER ASSEMBLY WITH MOUNTING ADAPTER(S) AND PROCESS OF MANUFACTURE

 #90
20120168245
2012-07-05

Exhaust pipe part and exhaust apparatus for internal combustion engine

 #91
20120138384
2012-06-07

Exhaust apparatus for an internal combustion engine

 #92
20120124968
2012-05-24

Mixing pipe for SCR mufflers

 #93
20120103720
2012-05-03

Engine

 #94
20110315133
2011-12-29

Automatic choke for an engine

 #95
20110272209
2011-11-10

Silencer

 #96
20110192676
2011-08-11

Exhaust muffler

 #97
20110186379
2011-08-04

MUFFLER BAFFLE

 #98
20110180347
2011-07-28

Spin muffler

 #99
20110017336
2011-01-27

Muffler attachment system

 #100
20100313554
2010-12-16

ADAPTIVE VALVE FOR EXHAUST SYSTEM

 #101
20100205946
2010-08-19

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

 #102
20100170744
2010-07-08

Motor vehicle exhaust line silencer

 #103
20100163337
2010-07-01

Muffler

 #104
20100116585
2010-05-13

Marine muffler with angularly disposed internal baffle

 #105
20100000821
2010-01-07

Marine muffler with angularly disposed internal baffle

 #106
20090283358
2009-11-19

SOUND-REDUCING BAFFLE

 #107
20090255243
2009-10-15

Commercial vehicle with an internal combustion engine and a heat recovery system using the heat sources of that engine

 #108
20090107761
2009-04-30

Exhaust sound and emission control systems

 #109
20090031717
2009-02-05

Exhaust flow distribution device

 #110
20080308347
2008-12-18

Vehicular exhaust system

 #111
20080236680
2008-10-02

Passive valve for attenuation of low frequency noise

 #112
20080196970
2008-08-21

Exhaust system for combustion engine

 #113
20080196969
2008-08-21

Vehicle exhaust muffler

 #114
20080164092
2008-07-10

Silencer with fin outlet

 #115
20080163617
2008-07-10

POWER IMPLEMENT

 #116
20080116004
2008-05-22

Motorcycle Exhaust System and Motorcycle Provided with Exhaust System

 #117
20080110162
2008-05-15

Cover member for plural exhaust pipes

 #118
20080110155
2008-05-15

Exhauster for motorcycle and motorcycle including exhauster

 #119
20080035422
2008-02-14

Marine muffler with angularly disposed internal baffle

 #120
20070261387
2007-11-15

MOTORCYCLE EXHAUST ENHANCEMENT DEVICE

 #121
20070240932
2007-10-18

Long fiber thermoplastic composite muffler system with integrated reflective chamber

 #122
20070205046
2007-09-06

Muffler for internal combustion engine

 #123
20070158136
2007-07-12

Muffler and vehicle equipped with muffler

 #124
20070158135
2007-07-12

Muffler and vehicle equipped with muffler

 #125
20070113540
2007-05-24

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

 #126
20060266022
2006-11-30

Exhaust system

 #127
20060254843
2006-11-16

Switchable loud and quiet exhaust apparatus

 #128
20060249328
2006-11-09

Muffler for motor vehicle

 #129
20060243521
2006-11-02

Muffler with improved heat dissipation

 #130
20060219476
2006-10-05

Modular muffler

 #131
20060124086
2006-06-15

Controlled auto-ignition two-stroke engine

 #132
20060070375
2006-04-06

Exhaust flow distribution device

 #133
20060026953
2006-02-09

Catalyst-attached muffler for internal combustion engine

 #134
20060021507
2006-02-02

Particulate trap with selective blocking element

 #135
20050263344
2005-12-01

Exhaust gas muffler

 #136
20050258001
2005-11-24

Muffler for an engine

 #137
20050223703
2005-10-13

Muffler with catalytic converter arrangement; and method

 #138
20050199408
2005-09-15

Arcing electron stream apparatus and method

 #139
20050139418
2005-06-30

Exhaust-gas muffler

 #140
20050115763
2005-06-02

Motorcycle exhaust enhancers

 #141
20050076668
2005-04-14

Noise attenuating device for a heating-ventilation-cooling system of a motor vehicle

 #142
20050072627
2005-04-07

Noise reduction device having walls therein

 #143
20050067217
2005-03-31

Exhaust system and a method of producing the same

 #144
20050039447
2005-02-24

Structure of engine exhauster

 #145
20050011698
2005-01-20

Internal combustion engine exhaust system

 #146
18491519
2024-08-27

Exhaust assemblies and vehicles including an exhaust assembly

 #147
18094819
2024-05-21

Sound attenuator apparatus and method

 #148
17888902
2023-06-06

Two-stage water-lift muffler for marine generator

 #149
16677405
2023-01-10

Sound attenuator apparatus and method