Patents-Review.com
ClassID:

137753 ⎘

F01N1/083 - CPC Classification

Classification description:

Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow

Recent Application in this class:
#1
20240384673
2024-11-21

MUFFLER FOR INTERNAL COMBUSTION ENGINES

 #2
20240352881
2024-10-24

Exhaust sound attenuation and control system

 #3
20240044274
2024-02-08

Engine assembly for a vehicle having a hydrocarbon trap

 #4
20230358153
2023-11-09

NOISE REDUCTION SYSTEMS FOR AEROSOL COLLECTORS

 #5
20230212967
2023-07-06

Muffler

 #6
20230017164
2023-01-19

INLINE MUFFLER AND POSITIVE AIRWAY PRESSURE THERAPY APPARATUS INCLUDING SAME

 #7
20220371716
2022-11-24

Exhaust pipe coupling

 #8
20220316371
2022-10-06

Dual function exhaust system attachment

 #9
20220275738
2022-09-01

Acoustically tuned muffler

 #10
20220274714
2022-09-01

Muffler

 #11
20210170861
2021-06-10

Vehicle

 #12
20210164370
2021-06-03

LOW NOISE ENCLOSURE

 #13
20210140354
2021-05-13

Muffler for vehicle

 #14
20210115824
2021-04-22

Methods and systems for an exhaust muffler system

 #15
20200240299
2020-07-30

Multi-chambered sound attenuation with resonant frequency targeting

 #16
20200141301
2020-05-07

Muffler with baffle defining multiple chambers

 #17
20200109721
2020-04-09

Noise mitigating compressor

 #18
20200102876
2020-04-02

Muffler for vehicle

 #19
20190360379
2019-11-28

MODULAR MUFFLER ASSEMBLY AND METHOD

 #20
20190301323
2019-10-03

Vehicle muffler

 #21
20190301322
2019-10-03

Low noise enclosure

 #22
20190226371
2019-07-25

Muffler

 #23
20190218956
2019-07-18

Exhaust orifice tube for vehicle mufflers

 #24
20190195100
2019-06-27

Selective acoustic soundproofing device

 #25
20190178124
2019-06-13

Acoustically tuned muffler

 #26
20190153925
2019-05-23

Pipe and metal sheet subassembly for an exhaust treatment device

 #27
20190145297
2019-05-16

MUFFLER

 #28
20190136740
2019-05-09

Exhaust silencer device

 #29
20190136739
2019-05-09

Vehicle exhaust device

 #30
20190120102
2019-04-25

Muffler valve device for vehicle

 #31
20190107020
2019-04-11

Exhaust systems and methods for gas turbine engine

 #32
20190107019
2019-04-11

Acoustically tuned muffler

 #33
20190107018
2019-04-11

MUFFLER WITH VENTURI EXHAUST LINE

 #34
20190063282
2019-02-28

Air exhausting device

 #35
20190063281
2019-02-28

Air exhausting device

 #36
20190063263
2019-02-28

Mobile power generation system including noise attenuation

 #37
20190048778
2019-02-14

Marine exhaust system

 #38
20190024549
2019-01-24

Method for forming a collar in a muffler housing

 #39
20190024548
2019-01-24

Muffler

 #40
20190017428
2019-01-17

Exhaust device of straddle-type vehicle

 #41
20180347421
2018-12-06

Exhaust systems and methods for gas turbine engine

 #42
20180291781
2018-10-11

Baffle assembly for a duct

 #43
20180274426
2018-09-27

Exhaust device

 #44
20180258807
2018-09-13

Muffler

 #45
20180202335
2018-07-19

Exhaust device of engine

 #46
20180202334
2018-07-19

Exhaust Muffler For Marine Engine Exhaust System

 #47
20180149053
2018-05-31

Exhaust gas muffler and method for the manufacture thereof

 #48
20180080354
2018-03-22

RECIPROCATION ENGINE EXHAUST SCAVENGING SYSTEM

 #49
20180051608
2018-02-22

Structure of muffler

 #50
20180038249
2018-02-08

MUFFLER WITH VENTURI EXHAUST LINE

 #51
20170335729
2017-11-23

Slip-type active noise control muffler and method for controlling the same

 #52
20170335728
2017-11-23

Exhaust systems and methods for gas turbine engine

 #53
20170321581
2017-11-09

EXHAUST MUFFLER FOR LONGITUDINAL INSTALLATION IN A VEHICLE

 #54
20170314435
2017-11-02

Muffler and/or exhaust apparatus and method of manufacture

 #55
20170306817
2017-10-26

MUFFLER FOR ENGINE

 #56
20170276043
2017-09-28

Exhaust after-treatment assembly for engine system

 #57
20170276041
2017-09-28

Muffler device including central common active control valve

 #58
20170218831
2017-08-03

Muffler joint

 #59
20170218806
2017-08-03

Muffler

 #60
20170198617
2017-07-13

Exhaust system for an internal combustion engine and method for operating the exhaust system

 #61
20170167333
2017-06-15

Exhaust muffler for combustion engine

 #62
20170167332
2017-06-15

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

 #63
20170159520
2017-06-08

Muffler and method for manufacturing same

 #64
20170152778
2017-06-01

Reductant mixing system for an exhaust gas after-treatment device

 #65
20170122171
2017-05-04

Optimized structure for integrated catalytic muffler

 #66
20170089239
2017-03-30

Exhaust muffler and sound deadening element

 #67
20170074132
2017-03-16

Exhaust system for internal combustion engine

 #68
20170067379
2017-03-09

MUFFLER FOR AN EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE

 #69
20170058732
2017-03-02

Exhaust system having variable exhaust gas paths

 #70
20170051646
2017-02-23

Silencer

 #71
20170044943
2017-02-16

Muffler for automobile

 #72
20170022861
2017-01-26

Exhaust silencer

 #73
20170009622
2017-01-12

Particulate filter for a motor vehicle

 #74
20160347168
2016-12-01

Exhaust muffler for transverse installation in a vehicle

 #75
20160341083
2016-11-24

Muffler for construction machine

 #76
20160312673
2016-10-27

Exhaust muffler

 #77
20160290195
2016-10-06

Exhaust pipe structure for vehicle

 #78
20160281559
2016-09-29

Muffler for an exhaust system of an internal combustion engine

 #79
20160273424
2016-09-22

MOUNTING STRUCTURE OF VARIABLE VALVE FOR DUAL EXHAUST SYSTEM

 #80
20160230627
2016-08-11

Muffler

 #81
20160222865
2016-08-04

Exhaust muffler

 #82
20160130996
2016-05-12

Recirculating Muffler Apparatus and Method

 #83
20160010918
2016-01-14

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

 #84
20160010524
2016-01-14

Muffler for automobile

 #85
20160003116
2016-01-07

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

 #86
20150377113
2015-12-31

Muffler unit and vehicle including the same

 #87
20150361841
2015-12-17

Vehicle exhaust system with resonance damping

 #88
20150273411
2015-10-01

Doser and mixer for a vehicle exhaust system

 #89
20150233276
2015-08-20

MODULAR ASSEMBLY FOR AFTERTREATMENT SYSTEM

 #90
20150219041
2015-08-06

Engine

 #91
20150219001
2015-08-06

EXHAUST SYSTEM FOR ADJUSTING PERFORMANCE OF A VEHICLE

 #92
20150152760
2015-06-04

Muffler

 #93
20150089932
2015-04-02

Internal combustion engine

 #94
20150014091
2015-01-15

Frequency-modifying muffler

 #95
20150008068
2015-01-08

Automotive muffler

 #96
20150004015
2015-01-01

Sound absorber for refrigerant compressor

 #97
20140345662
2014-11-27

Device for converting thermal energy to electrical energy

 #98
20140311821
2014-10-23

Exhaust muffler

 #99
20140284138
2014-09-25

Engine muffler

 #100
20140251718
2014-09-11

Muffler equipped with catalytic converter

 #101
20140251717
2014-09-11

Muffler equipped with catalytic converter

 #102
20140238006
2014-08-28

Exhaust gas heat exchanger

 #103
20140230418
2014-08-21

Assembly for purifying exhaust gases

 #104
20140216007
2014-08-07

DEVICE AND METHOD FOR AN EXHAUST SYSTEM OF A MOTOR VEHICLE

 #105
20140090920
2014-04-03

Exhaust system of saddle-ride type vehicle

 #106
20140054101
2014-02-27

Muffler assembly with siphon tube

 #107
20140041959
2014-02-13

Muffler for vehicle

 #108
20130270034
2013-10-17

Silencing apparatus for vehicle

 #109
20130220732
2013-08-29

Muffler with dual exhaust gas discharge pipe for vehicle

 #110
20130175115
2013-07-11

Adjustable exhaust baffling device

 #111
20130068554
2013-03-21

Muffler system with protector for small-sized vehicle

 #112
20130020147
2013-01-24

Tunable Muffler

 #113
20120305330
2012-12-06

Muffler for internal combustion engine

 #114
20120273296
2012-11-01

Component for motor vehicles and method for its production

 #115
20120255522
2012-10-11

Fuel rail for attenuating radiated noise

 #116
20120228055
2012-09-13

Exhaust device for internal combustion engine

 #117
20120193221
2012-08-02

Radial counterflow muffler for NO reduction and pollutant collection

 #118
20120180465
2012-07-19

Exhaust apparatus of internal combustion engine

 #119
20120138384
2012-06-07

Exhaust apparatus for an internal combustion engine

 #120
20120137666
2012-06-07

Exhaust gas apparatus of an internal combustion engine

 #121
20120048236
2012-03-01

Fuel rail for attenuating radiated noise

 #122
20120042641
2012-02-23

Method and system for homogenizing exhaust from an engine

 #123
20120031699
2012-02-09

Diesel silencer capable of Tier 3 or Tier 4 operation

 #124
20120012419
2012-01-19

Exhaust device

 #125
20120000181
2012-01-05

Exhaust system having an aftertreatment module

 #126
20110297479
2011-12-08

Diffuser muffler

 #127
20110214937
2011-09-08

Removable exhaust baffle

 #128
20110209942
2011-09-01

Exhaust device of internal combustion engine

 #129
20110192677
2011-08-11

Exhaust muffler device

 #130
20110139110
2011-06-16

Air pillow flow guidance and acoustic countermeasure system for an air intake tract

 #131
20110107750
2011-05-12

Exhaust emission control device

 #132
20110083924
2011-04-14

MUFFLER FOR VEHICLE

 #133
20110072807
2011-03-31

Combined exhaust gas aftertreatment/air cleaner dust and ejector unit

 #134
20110048848
2011-03-03

Muffler apparatus for vehicle

 #135
20100307864
2010-12-09

AUTOMOTIVE MUFFLER HAVING MEANS FOR SWITCHING BETWEEN LOUD AND QUIETER MODES

 #136
20100288581
2010-11-18

Muffler for pneumatic handheld tool

 #137
20100251701
2010-10-07

MUFFLER

 #138
20100223916
2010-09-09

Exhaust gas purification device

 #139
20100199651
2010-08-12

Tube structure for exhaust component

 #140
20100170232
2010-07-08

Baffle for Distribution of Exhaust Flow

 #141
20100126799
2010-05-27

Muffler and engine exhaust apparatus

 #142
20100126159
2010-05-27

Valve for a motor vehicle exhaust silencer, and silencer comprising a valve of this type

 #143
20100116586
2010-05-13

Muffler and corresponding manufacturing process

 #144
20100108436
2010-05-06

Acoustically treated exhaust centerbody for jet engines and associated methods

 #145
20100084220
2010-04-08

Sound-attenuating muffler having reduced back pressure

 #146
20100065365
2010-03-18

Auto-sensing, automatic adjusting exhaust baffle

 #147
20100059312
2010-03-11

PARTICLE MATTER CATALYST INSERTED MUFFLER

 #148
20100050618
2010-03-04

Exhaust gas after treatment apparatus of a motor vehicle

 #149
20100012422
2010-01-21

Flapper configuration for marine exhaust system

 #150
20100011754
2010-01-21

Exhaust gas muffler

 #151
20100011752
2010-01-21

Exhaust muffler comprising a catalytic converter

 #152
20100006370
2010-01-14

Sound-attenuating muffler having reduced back pressure

 #153
20090308687
2009-12-17

Muffler for vehicle

 #154
20090308686
2009-12-17

Venturi muffler

 #155
20090301808
2009-12-10

Muffler structure for vehicle

 #156
20090293462
2009-12-03

Catalytic muffler having crossover passageway for secondary air

 #157
20090266644
2009-10-29

Catalytic converter muffler

 #158
20090229913
2009-09-17

Dual Mode Exhaust Muffler

 #159
20090229911
2009-09-17

VARIABLE GEOMETRY MUFFLER FOR AN EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE

 #160
20090208275
2009-08-20

STRUCTURE FOR EXHAUST PIPE CONNECTION SECTION OF MUFFLER

 #161
20090145687
2009-06-11

Motorcycle exhaust muffler

 #162
20090127025
2009-05-21

Triangular cross section exhaust muffler

 #163
20090050404
2009-02-26

Sound dampening flow channel device

 #164
20090045007
2009-02-19

Muffler with cyclonic plates

 #165
20090045006
2009-02-19

Noise Eliminator for Fuel Cell

 #166
20090000862
2009-01-01

MOTORCYCLE EXHAUST SYSTEM

 #167
20090000282
2009-01-01

Performance exhaust system

 #168
20080308348
2008-12-18

Exhaust System for Internal Combustion Engines

 #169
20080307778
2008-12-18

Fixing Device of Catalyst Substrate

 #170
20080245604
2008-10-09

Passive secondary air muffler

 #171
20080236942
2008-10-02

Exhaust apparatus for small boat

 #172
20080156578
2008-07-03

VARIABLE GEOMETRY MUFFLER FOR AN EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE

 #173
20080141667
2008-06-19

Fuel-cell exhaust system

 #174
20080072576
2008-03-27

Exhaust emission purification apparatus for engine

 #175
20080060870
2008-03-13

EXHAUST MUFFLER

 #176
20080053066
2008-03-06

Exhaust device for motorcycle

 #177
20080035419
2008-02-14

Muffler diffuser

 #178
20080035418
2008-02-14

Exhaust sound and emission control systems

 #179
20080023265
2008-01-31

Combination Silencer

 #180
20070295002
2007-12-27

Motorcycle

 #181
20070256673
2007-11-08

MOTORCYCLE DYNAMIC EXHAUST SYSTEM

 #182
20070246294
2007-10-25

Exhaust noise control for motorcycles

 #183
20070246292
2007-10-25

Sound adjustable device for coupling to an engine and method for manufacturing thereof

 #184
20070227812
2007-10-04

Muffler

 #185
20070227001
2007-10-04

Method of producing metal tubular member

 #186
20070205046
2007-09-06

Muffler for internal combustion engine

 #187
20070045044
2007-03-01

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

 #188
20070039316
2007-02-22

Compact combination exhaust muffler and aftertreatment element and water trap assembly

 #189
20060266024
2006-11-30

Layout of catalyst of vehicle

 #190
20060258237
2006-11-16

Standby generator

 #191
20060243521
2006-11-02

Muffler with improved heat dissipation

 #192
20060218904
2006-10-05

Diesel emissions control system and method

 #193
20060201145
2006-09-14

Low emissions diesel system and method

 #194
20060162995
2006-07-27

Muffler for an exhaust gas system

 #195
20060131102
2006-06-22

Exhaust muffler

 #196
20060096805
2006-05-11

Muffler

 #197
20060090957
2006-05-04

Exhaust muffler

 #198
20060054384
2006-03-16

Automobile muffler with high flow rate

 #199
20060037811
2006-02-23

Muffler assembly

 #200
20060037808
2006-02-23

Active exhaust muffler

 #201
20060037351
2006-02-23

Cogeneration system and exhaust gas heat exchanger assembly thereof

 #202
20060000205
2006-01-05

Motorcycle dynamic exhaust system

 #203
20050279572
2005-12-22

Arrangement for internal combustion engine

 #204
20050279571
2005-12-22

Exhaust sound and emission control systems

 #205
20050258001
2005-11-24

Muffler for an engine

 #206
20050224284
2005-10-13

Engine exhaust muffler with exhaust emission control function

 #207
20050217931
2005-10-06

Method and apparatus for venting exhaust gas from an engine

 #208
20050217929
2005-10-06

Muffler with secondary flow path

 #209
20050199408
2005-09-15

Arcing electron stream apparatus and method

 #210
20050167192
2005-08-04

Silencer for a motor vehicle exhaust system, and its method of mounting

 #211
20050161281
2005-07-28

Exhaust assembly

 #212
20050133301
2005-06-23

Muffler for internal combustion engine

 #213
20050126382
2005-06-16

Silencer

 #214
20050045419
2005-03-03

Noise attenuation device for a vehicle exhaust system

 #215
20050045418
2005-03-03

Noise attenuation device for a vehicle exhaust system

 #216
20050028516
2005-02-10

Exhaust gas muffler

 #217
20050023078
2005-02-03

Tuned exhaust system for small engines

 #218
17965449
2024-04-09

Water drop muffler for diesel powered marine generator

 #219
17144414
2023-06-06

Marine muffler with integral bypass water management

 #220
17097515
2022-10-18

Water drop muffler for diesel powered marine generator

 #221
16429715
2021-01-12

Marine muffler with integral bypass water management

 #222
16372295
2022-03-08

Suppression device and related methods

 #223
15902662
2020-04-14

Sound suppressor for a firearm

 #224
15877467
2019-06-04

Marine muffler with integral bypass water management

 #225
15864131
2020-02-11

Marine drives and idle relief mufflers for marine drives

 #226
15637764
2018-03-20

Muffler for a powerboat engine

 #227
15584556
2019-07-09

Aerodynamically conformal muffler

 #228
15381184
2018-01-23

Marine muffler with integral bypass water management

 #229
15057519
2017-02-07

Marine muffler with pulse attenuation tuning