Patents-Review.com
ClassID:

137744 ⎘

F01N1/02 - CPC Classification

Classification description:

Silencing apparatus characterised by method of silencing by using resonance

Sub-classes:
Recent Application in this class:
#1
20260110257
2026-04-23

MUFFLER

 #2
20260097827
2026-04-09

TURBOCHARGER ASSEMBLY

 #3
20260062095
2026-03-05

VEHICLE AND METHOD OF SUPPLYING A FUEL-AIR MIXTURE IN AN ENGINE

 #4
20250388285
2025-12-25

Straddle-Type Vehicle

 #5
20250187694
2025-06-12

TWO-WHEELED VEHICLE

 #6
20250067201
2025-02-27

Dual Mode Muffler

 #7
20250027439
2025-01-23

MUFFLER

 #8
20250026445
2025-01-23

EXHAUST SYSTEM FOR AN ENGINE

 #9
20240352881
2024-10-24

Exhaust sound attenuation and control system

 #10
20240208599
2024-06-27

Straddle-Type Vehicle

 #11
20240183293
2024-06-06

AIR AMPLIFIER WITH NOISE SUPPRESSION

 #12
20240125259
2024-04-18

BROADBAND RESONATOR WITH AN ENTRAINED WATER REMOVAL SYSTEM FOR A FUEL CELL COMPRESSOR

 #13
20240035405
2024-02-01

EXHAUST SOUND ATTENUATION AND CONTROL SYSTEM

 #14
20230383677
2023-11-30

Timbre scaled exhaust system

 #15
20230349309
2023-11-02

Constant velocity muffler assembly

 #16
20230349308
2023-11-02

Resonator core with spiral slits

 #17
20230304425
2023-09-28

DRONE ELIMINATION MUFFLER

 #18
20230184146
2023-06-15

A MUFFLER HEAT-EXCHANGER FOR AN ENGINE EXHAUST, AND ENGINE EXHAUST SYSTEM, AND AN ENGINE SYSTEM

 #19
20230160325
2023-05-25

Exhaust system tuner tube to reduce standing wave

 #20
20230044457
2023-02-09

Vehicle exhaust bracket

 #21
20230003148
2023-01-05

Muffler comprising one or more sensor ports

 #22
20220372714
2022-11-24

Noise reducing resonator in a surface compaction machine

 #23
20220311083
2022-09-29

Traction battery venting system and venting method

 #24
20220290600
2022-09-15

Exhaust device of engine and work machine

 #25
20220275738
2022-09-01

Acoustically tuned muffler

 #26
20220258825
2022-08-18

Straddle-type vehicle

 #27
20220250704
2022-08-11

Straddle-Type Vehicle

 #28
20220243638
2022-08-04

Muffler for small engines

 #29
20220220873
2022-07-14

Exhaust device

 #30
20220186642
2022-06-16

EXHAUST PIPE

 #31
20220161884
2022-05-26

Two-wheeled vehicle with fairing coupled to down tube assembly

 #32
20220065149
2022-03-03

EXHAUST GAS PURIFICATION SYSTEM WITH AIR INJECTION

 #33
20220056827
2022-02-24

Method for interlocking engine exhaust sound with traveling mode and exhaust system for smart vehicle

 #34
20220049640
2022-02-17

Vehicle exhaust system

 #35
20220042440
2022-02-10

Muffler including an internal photocatalyst and a light source

 #36
20220025793
2022-01-27

Method and apparatus for converting a vehicle from a dual-in, single-out exhaust system to a dual-in, dual-out exhaust system

 #37
20210381448
2021-12-09

Inverter generator

 #38
20210301693
2021-09-30

Exhaust muffler

 #39
20210293173
2021-09-23

Sinuous balanced tailpipe system

 #40
20210285346
2021-09-16

Rotary valve internal combustion engine

 #41
20210270159
2021-09-02

Carbon capture in an internal combustion engine

 #42
20210270158
2021-09-02

Muffler

 #43
20210260961
2021-08-26

Pressure regulator warm up system for a transport refrigeration unit

 #44
20210254522
2021-08-19

Impact energy absorber with integrated engine exhaust noise muffler

 #45
20210231036
2021-07-29

MUFFLER SYSTEM

 #46
20210215146
2021-07-15

Muffler, compressor assembly, and refrigerator

 #47
20210199033
2021-07-01

Exhaust-gas aftertreatment arrangement

 #48
20210148261
2021-05-20

Exhaust component with louver bridge for suppressing vehicle exhaust pipe resonances and vehicle exhaust system with exhaust component

 #49
20210115835
2021-04-22

Muffler heat protection assembly

 #50
20210078674
2021-03-18

Exhaust system for an engine

 #51
20210061082
2021-03-04

Work vehicle

 #52
20210023940
2021-01-28

Engine and work machine

 #53
20210003053
2021-01-07

Muffler structure

 #54
20200408130
2020-12-31

Exhaust gas aftertreatment device

 #55
20200408119
2020-12-31

Timbre scaled exhaust system

 #56
20200398919
2020-12-24

Straddle type vehicle

 #57
20200392879
2020-12-17

Component for an exhaust system of an internal combustion engine

 #58
20200386132
2020-12-10

Exhaust sound attenuation device

 #59
20200369402
2020-11-26

Double inlets exhaust system for unmanned aerial vehicle

 #60
20200353813
2020-11-12

Exhaust gas purification device

 #61
20200347761
2020-11-05

Exhaust muffler for an exhaust system of an internal combustion engine

 #62
20200318523
2020-10-08

Exhaust fluid collision type muffler

 #63
20200318510
2020-10-08

Exhaust muffler

 #64
20200318509
2020-10-08

Exhaust device for internal combustion engine of saddled vehicle

 #65
20200309062
2020-10-01

Engine device

 #66
20200300136
2020-09-24

METHOD OF SELECTING AN OPERATING MODE OF AN ACTIVE SOUND GENERATING DEVICE OF AN EXHAUST SYSTEM, EXHAUST SYSTEM, AND MOTOR VEHICLE

 #67
20200284529
2020-09-10

Acoustic absorber with integrated heat sink

 #68
20200271036
2020-08-27

Muffler and catalytic converters for combined heating and power systems

 #69
20200263578
2020-08-20

Exhaust muffler structure

 #70
20200240300
2020-07-30

Muffler

 #71
20200240299
2020-07-30

Multi-chambered sound attenuation with resonant frequency targeting

 #72
20200238819
2020-07-30

Intake device structure of saddle riding vehicle

 #73
20200234687
2020-07-23

Soundproof structure body

 #74
20200224577
2020-07-16

Exhaust device

 #75
20200217231
2020-07-09

Exhaust pipe

 #76
20200182142
2020-06-11

Wastegate Sizing For Turbocharger For A Two-Stroke Engine

 #77
20200182123
2020-06-11

Exhaust system for a vehicle

 #78
20200126532
2020-04-23

Soundproof system

 #79
20200123946
2020-04-23

Drone elimination muffler

 #80
20200123945
2020-04-23

Muffler structure of saddle-type vehicle

 #81
20200049055
2020-02-13

Exhaust gas system for an internal combustion engine

 #82
20200049040
2020-02-13

Exhaust flap for an exhaust system of a motor vehicle, controller for such an exhaust flap, and method for operating such an exhaust flap

 #83
20200031219
2020-01-30

Exhaust structure of vehicle

 #84
20190249588
2019-08-15

Muffler unit

 #85
20190226371
2019-07-25

Muffler

 #86
20190218955
2019-07-18

Vehicle frame with acoustic volume for an exhaust system

 #87
20190203619
2019-07-04

Exhaust system having tunable exhaust sound

 #88
20190186332
2019-06-20

Vorticity based noise abatement

 #89
20190154176
2019-05-23

Structure for installing pipe fixing clamp installed in internal structural pipe of sound absorber

 #90
20190153925
2019-05-23

Pipe and metal sheet subassembly for an exhaust treatment device

 #91
20190120116
2019-04-25

Muffler

 #92
20190107019
2019-04-11

Acoustically tuned muffler

 #93
20190093565
2019-03-28

Tunable resonator

 #94
20190093528
2019-03-28

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

 #95
20190063297
2019-02-28

Exhaust sound generating apparatus of vehicle

 #96
20190063281
2019-02-28

Air exhausting device

 #97
20190032530
2019-01-31

Combined exhaust gas silencer

 #98
20190024549
2019-01-24

Method for forming a collar in a muffler housing

 #99
20180340472
2018-11-29

Tunable resonator

 #100
20180334946
2018-11-22

Manifold

 #101
20180323680
2018-11-08

Standby generator with air intake on rear wall and exhaust opening on front wall

 #102
20180274412
2018-09-27

EXHAUST SYSTEM FOR VEHICLE

 #103
20180266301
2018-09-20

Muffler

 #104
20180215446
2018-08-02

Exhaust assembly, exhaust system, and power pack for a vehicle

 #105
20180128483
2018-05-10

Damper for gas turbine

 #106
20180094625
2018-04-05

RESONATOR ELEMENT IN A SUCTION FILTER FOR HERMETIC COMPRESSOR AND METHOD OF MANUFACTURE OF A RESONATOR ELEMENT

 #107
20180023429
2018-01-25

Timbre scaled exhaust system

 #108
20180016954
2018-01-18

Exhaust-gas system

 #109
20170363023
2017-12-21

Straddle-type vehicle

 #110
20170362976
2017-12-21

Exhaust system for an engine

 #111
20170346365
2017-11-30

Standby generator with air intake on rear wall and exhaust opening on front wall

 #112
20170314434
2017-11-02

Exhaust gas aftertreatment device and exhaust gas aftertreatment method

 #113
20170314433
2017-11-02

Resonators with interchangeable metering tubes for gas turbine engines

 #114
20170234552
2017-08-17

Muffler for air-conditioning apparatus and air-conditioning apparatus including the same

 #115
20170219153
2017-08-03

Sound suppression apparatus

 #116
20170211439
2017-07-27

Exhaust gas system for an internal combustion engine

 #117
20170191390
2017-07-06

Silencer

 #118
20170167333
2017-06-15

Exhaust muffler for combustion engine

 #119
20170167332
2017-06-15

Compact muffler having multiple reactive cavities providing multi-spectrum attenuation for enhanced noise suppression

 #120
20170145882
2017-05-25

Drone elimination muffler

 #121
20170145881
2017-05-25

Vehicle exhaust system with resistive patch

 #122
20170114698
2017-04-27

Exhaust-gas module for an internal combustion engine

 #123
20170096919
2017-04-06

Damper assembly for a combustion chamber

 #124
20170082006
2017-03-23

Silencer and catalytic converter apparatus with adjustable blocking panel

 #125
20170074132
2017-03-16

Exhaust system for internal combustion engine

 #126
20170022861
2017-01-26

Exhaust silencer

 #127
20160365773
2016-12-15

Standby generator including enclosure with intake opening in rear wall and exhaust opening in front wall

 #128
20160298847
2016-10-13

System and method for tuning resonators

 #129
20160298510
2016-10-13

Drone elimination muffler

 #130
20160281558
2016-09-29

MUFFLER

 #131
20160281557
2016-09-29

Silencer for internal combustion engine

 #132
20160245138
2016-08-25

Exhaust structure of straddle-type vehicle, and vehicle incorporating same

 #133
20160230627
2016-08-11

Muffler

 #134
20160222848
2016-08-04

Exhaust muffler

 #135
20160176476
2016-06-23

Motorcycle and motorcycle rear wheel swingarm with integrated resonator

 #136
20160169078
2016-06-16

Exhaust gas system of a motor vehicle

 #137
20160169070
2016-06-16

Exhaust pipe

 #138
20160160717
2016-06-09

Silencer for an internal combustion engine of a motor vehicle

 #139
20160053662
2016-02-25

Method for encasing a body of an exhaust gas system

 #140
20160053659
2016-02-25

Exhaust device of motorcycle

 #141
20160010523
2016-01-14

Attenuating engine noise using a reverse resonator

 #142
20160003116
2016-01-07

Engine-exhaust-system apparatus and package-type engine electric power generator

 #143
20150377487
2015-12-31

Damper for gas turbine

 #144
20150361841
2015-12-17

Vehicle exhaust system with resonance damping

 #145
20150354433
2015-12-10

Method for installing inlet pipe and method for supporting inlet pipe

 #146
20150283897
2015-10-08

Vehicle exhaust assembly

 #147
20150275721
2015-10-01

System and method for tuned exhaust

 #148
20150136520
2015-05-21

Structure of dual exhaust system for CDA engine

 #149
20150101886
2015-04-16

Synthetic jet muffler

 #150
20150089932
2015-04-02

Internal combustion engine

 #151
20150068481
2015-03-12

Engine noise attenuation

 #152
20150001003
2015-01-01

Systems and methods for acoustic resonance mitigation

 #153
20140311822
2014-10-23

Conformal transverse muffler

 #154
20140311125
2014-10-23

METHOD, APPARATUS, AND SYSTEM USED FOR PURIFYING AND SILENCING EXHAUST OF INTERNAL COMBUSTION ENGINE

 #155
20140166394
2014-06-19

Exhaust system for an internal combustion engine

 #156
20140090922
2014-04-03

Simplified modal attenuator

 #157
20140054101
2014-02-27

Muffler assembly with siphon tube

 #158
20140020975
2014-01-23

Resonator silencer for a radial flow machine, in particular for a radial compressor

 #159
20130280109
2013-10-24

Modular discharge silencer for vehicle-mounted compressor

 #160
20130270034
2013-10-17

Silencing apparatus for vehicle

 #161
20130247849
2013-09-26

Shunt pulsation trap for positive displacement (PD) internal combustion engines (ICE)

 #162
20130213731
2013-08-22

Passive valve and resonator assembly for vehicle exhaust system

 #163
20130187392
2013-07-25

Standby generators including compressed fiberglass components

 #164
20130186062
2013-07-25

Exhaust device for an internal combustion engine

 #165
20130164643
2013-06-27

Silencer for reducing acoustic noise of fuel cell system

 #166
20130146391
2013-06-13

Front end exhaust system

 #167
20130111901
2013-05-09

PULSATION ABSORPTION SYSTEM FOR AN ENGINE

 #168
20130047841
2013-02-28

DEVICE FOR DIAGNOSING A PARTICLE FILTER

 #169
20130000748
2013-01-03

DEVICE FOR EJECTING GAS FROM A GAS TURBINE ENGINE AND GAS TURBINE ENGINE

 #170
20120273302
2012-11-01

Exhaust apparatus of internal combustion engine

 #171
20120260626
2012-10-18

IC Power Plant and Method of Operation

 #172
20120228053
2012-09-13

Silencer for a two-stroke motor of a power tool

 #173
20120228049
2012-09-13

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

 #174
20120210875
2012-08-23

Apparatuses and methods for reducing pollutants in gas streams

 #175
20120186905
2012-07-26

Motorcycle exhaust system structure including a resonator provided to an exhaust pipe

 #176
20120180465
2012-07-19

Exhaust apparatus of internal combustion engine

 #177
20120168245
2012-07-05

Exhaust pipe part and exhaust apparatus for internal combustion engine

 #178
20120138384
2012-06-07

Exhaust apparatus for an internal combustion engine

 #179
20120138383
2012-06-07

Radiated sound reducing structure

 #180
20120137666
2012-06-07

Exhaust gas apparatus of an internal combustion engine

 #181
20120111663
2012-05-10

Resonator for a dual-flow exhaust system

 #182
20120061233
2012-03-15

Apparatuses and methods for reducing pollutants in gas streams

 #183
20120000181
2012-01-05

Exhaust system having an aftertreatment module

 #184
20110225953
2011-09-22

Exhaust chamber in motorcycle exhaust system

 #185
20110209942
2011-09-01

Exhaust device of internal combustion engine

 #186
20110192677
2011-08-11

Exhaust muffler device

 #187
20110192152
2011-08-11

EXHAUST SYSTEM

 #188
20110139541
2011-06-16

Method for adjusting a Helmholtz resonator and an adjustable Helmholtz resonator

 #189
20110127107
2011-06-02

Acoustic resonator and sound chamber

 #190
20110079463
2011-04-07

Variable resonation chamber valve

 #191
20110079462
2011-04-07

Muffling device

 #192
20110048849
2011-03-03

External cylinder and silencer provided with the external cylinder

 #193
20110041488
2011-02-24

EXHAUST SYSTEM OF INTERNAL COMBUSTION ENGINE

 #194
20110031063
2011-02-10

Silencer for motor vehicle exhaust line

 #195
20110000734
2011-01-06

Exhaust system with active exhaust muffler

 #196
20100307864
2010-12-09

AUTOMOTIVE MUFFLER HAVING MEANS FOR SWITCHING BETWEEN LOUD AND QUIETER MODES

 #197
20100307143
2010-12-09

IC power plant, and method of operation

 #198
20100300799
2010-12-02

Exhaust silencer device for internal combustion engine

 #199
20100270103
2010-10-28

Exhaust muffler

 #200
20100212999
2010-08-26

HELMHOLTZ RESONATOR

 #201
20100212990
2010-08-26

Vehicle including silencer

 #202
20100193283
2010-08-05

Noise reduction system

 #203
20100192880
2010-08-05

Exhaust pipe structure for saddle-ride type vehicle

 #204
20100192557
2010-08-05

Multi-cylinder internal combustion engine, vehicle, marine vessel, and exhausting method for multi-cylinder internal combustion engine

 #205
20100192556
2010-08-05

Internal combustion engine, vehicle, marine vessel, and secondary air supply method for internal combustion engine

 #206
20100192553
2010-08-05

Internal combustion engine, vehicle, marine vessel, and exhaust gas cleaning method for internal combustion engine

 #207
20100186407
2010-07-29

PARTICLE BURNING IN AN EXHAUST SYSTEM

 #208
20100180583
2010-07-22

Internal combustion engine, vehicle, marine vessel, and exhausting method for internal combustion engine

 #209
20100170743
2010-07-08

High-performance muffler assembly with multiple modes of operation

 #210
20100170231
2010-07-08

Exhaust pipe for vehicle-mounted engine

 #211
20100167220
2010-07-01

Sound Reduction Provision for Heat Apparatuses

 #212
20100108436
2010-05-06

Acoustically treated exhaust centerbody for jet engines and associated methods

 #213
20100031645
2010-02-11

Trap for exhaust system

 #214
20100019486
2010-01-28

MUFFLER FOR AN EXHAUST SYSTEM

 #215
20100000206
2010-01-07

Intake and exhaust system of internal combustion engine

 #216
20090301807
2009-12-10

Exhaust muffler for exhaust system

 #217
20090266327
2009-10-29

Vehicle with secondary air supply passage

 #218
20090236174
2009-09-24

EXHAUST APPARATUS OF VEHICLE ENGINE

 #219
20090188747
2009-07-30

Method of making an exhaust-noise attenuation muffler, and exhaust-noise attenuation muffler

 #220
20090139796
2009-06-04

Exhaust device for straddle-type vehicle and straddle-type vehicle

 #221
20090127025
2009-05-21

Triangular cross section exhaust muffler

 #222
20090127023
2009-05-21

Passive valve assembly for vehicle exhaust system

 #223
20090127022
2009-05-21

PASSIVE VALVE AND RESONATOR ASSEMBLY FOR VEHICLE EXHAUST SYSTEM

 #224
20090126359
2009-05-21

Passive valve with stop pad

 #225
20090126358
2009-05-21

PASSIVE VALVE ASSEMBLY WITH ELONGATED VANE

 #226
20090126357
2009-05-21

PASSIVE VALVE ASSEMBLY FOR VEHICLE EXHAUST SYSTEM

 #227
20090126356
2009-05-21

OFFSET PASSIVE VALVE FOR VEHICLE EXHAUST SYSTEM

 #228
20090114476
2009-05-07

Vehicle resonator structure and attachment method

 #229
20090107759
2009-04-30

Swing-arm integrated exhaust silencer

 #230
20090101434
2009-04-23

Integrated modular exhaust system

 #231
20090014238
2009-01-15

Muffler

 #232
20090014237
2009-01-15

Exhaust muffler having a horizontally extending sound attenuation chamber

 #233
20090000282
2009-01-01

Performance exhaust system

 #234
20080251314
2008-10-16

Exhaust system for an engine and motorcycle including the exhaust system

 #235
20080236942
2008-10-02

Exhaust apparatus for small boat

 #236
20080142294
2008-06-19

Noise control system using smart materials

 #237
20080093162
2008-04-24

Gas flow sound attenuation device

 #238
20080078610
2008-04-03

Noise reduction for an internal combustion engine

 #239
20080060870
2008-03-13

EXHAUST MUFFLER

 #240
20080041043
2008-02-21

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

 #241
20080035418
2008-02-14

Exhaust sound and emission control systems

 #242
20070284186
2007-12-13

Exhaust system

 #243
20070278199
2007-12-06

Particle burning in an exhaust system

 #244
20070272479
2007-11-29

Exhaust system for an internal combustion engine

 #245
20070272478
2007-11-29

Internal combustion engine exhaust component and a method of making an internal combustion engine exhaust component

 #246
20070266696
2007-11-22

Catalyst temperature estimation device

 #247
20070240926
2007-10-18

Exhaust device and understructure of vehicle

 #248
20070227807
2007-10-04

High-performance muffler assembly with multiple modes of operation

 #249
20070205044
2007-09-06

Silencer

 #250
20070187174
2007-08-16

COLLAPSIBLE MUFFLER SYSTEM

 #251
20070181360
2007-08-09

Exhaust system and saddle-ride type vehicle

 #252
20070119433
2007-05-31

Device for exhaust gas purification for spark-ignited engines

 #253
20070102236
2007-05-10

Muffler

 #254
20070102235
2007-05-10

Resonator performance by local reduction of component thickness

 #255
20070101706
2007-05-10

Side branch absorber for exhaust manifold of two-stroke internal combustion engine

 #256
20070062757
2007-03-22

Pressed assembly for passive valve installation

 #257
20070062756
2007-03-22

Active exhaust-noise attenuation muffler

 #258
20070051556
2007-03-08

Exhaust system with external helmholtz resonator and associated method

 #259
20070045044
2007-03-01

Flow-through mufflers with optional thermo-electric, sound cancellation, and tuning capabilities

 #260
20060288695
2006-12-28

Intake and exhaust system of internal combustion engine

 #261
20060283661
2006-12-21

Silencer

 #262
20060266580
2006-11-30

Muffler for an exhaust system and manufacturing method for same

 #263
20060231330
2006-10-19

Spun extrusion side entry muffler

 #264
20060219203
2006-10-05

Two-stroke engine

 #265
20060150620
2006-07-13

Exhaust gas control valve

 #266
20060131102
2006-06-22

Exhaust muffler

 #267
20060090957
2006-05-04

Exhaust muffler

 #268
20060086564
2006-04-27

Dual chamber variable geometry resonator

 #269
20060086563
2006-04-27

Compressor discharge pulsation dampener

 #270
20060032699
2006-02-16

Resonator for vehicle

 #271
20060021507
2006-02-02

Particulate trap with selective blocking element

 #272
20060011409
2006-01-19

Exhaust system of a turbo-charged engine

 #273
20060000667
2006-01-05

Sound dampening assembly for automotive exhaust system

 #274
20050284691
2005-12-29

Integrated heat exchanger and muffler unit

 #275
20050279571
2005-12-22

Exhaust sound and emission control systems

 #276
20050263343
2005-12-01

Noise reducing equipment

 #277
20050258000
2005-11-24

Noise reducing equipment

 #278
20050223703
2005-10-13

Muffler with catalytic converter arrangement; and method

 #279
20050217931
2005-10-06

Method and apparatus for venting exhaust gas from an engine

 #280
20050155818
2005-07-21

Exhaust muffler

 #281
20050155817
2005-07-21

Muffler for internal combustion motor vehicles

 #282
20050150718
2005-07-14

Resonator with retention ribs

 #283
20050126850
2005-06-16

Exhaust muffling device

 #284
20050115764
2005-06-02

Muffler

 #285
20050103567
2005-05-19

Exhaust muffler for internal combustion engines

 #286
20050067219
2005-03-31

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