ClassID:

137743

F01N1/006 - CPC Classification

Classification description:

Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages comprising at least one perforated tube extending from inlet to outlet of the silencer

Recent Application in this class:
#1
20260071564
2026-03-12

Exhaust Muffler

#2
20250067201
2025-02-27

Dual Mode Muffler

#3
20230212967
2023-07-06

Muffler

#4
20220275738
2022-09-01

Acoustically tuned muffler

#5
20220268186
2022-08-25

MUFFLER FOR ENGINE, AIR-COOLED ENGINE, AND WORK MACHINE

#6
20220220874
2022-07-14

Exhaust system and muffler

#7
20220196017
2022-06-23

Muffler device and compressor having the same

#8
20220010716
2022-01-13

System and method for low CO emission engine

#9
20210285349
2021-09-16

Surface component for vehicle exhaust system

#10
20210131323
2021-05-06

Muffler for vehicle for implementing sporty exhaust sound

#11
20200392880
2020-12-17

Vehicle exhaust system

#12
20200318523
2020-10-08

Exhaust fluid collision type muffler

#13
20200088077
2020-03-19

SILENCER FOR AN EXHAUST GAS SYSTEM OF A MOTOR VEHICLE AND MOTOR VEHICLE WITH A SILENCER

#14
20200003093
2020-01-02

Muffler

#15
20190345856
2019-11-14

Methods of and systems for constraining fibrous material during filling operation

#16
20190264595
2019-08-29

System and method for low CO emission engine

#17
20190226371
2019-07-25

Muffler

#18
20190218956
2019-07-18

Exhaust orifice tube for vehicle mufflers

#19
20190203619
2019-07-04

Exhaust system having tunable exhaust sound

#20
20190170043
2019-06-06

MUFFLER FOR SINGLE-CYLINDER DIESEL ENGINE

#21
20190136739
2019-05-09

Vehicle exhaust device

#22
20190107019
2019-04-11

Acoustically tuned muffler

#23
20190085744
2019-03-21

Exhaust device for internal combustion engine

#24
20190078476
2019-03-14

Exhaust device for internal combustion engine

#25
20190055866
2019-02-21

Exhaust device for internal combustion engine

#26
20180326837
2018-11-15

Valve assembly

#27
20180142588
2018-05-24

Silencer and vehicle engine including same

#28
20180051608
2018-02-22

Structure of muffler

#29
20170298793
2017-10-19

Selectively tunable exhaust noise attenuation device

#30
20170241310
2017-08-24

Acoustic device

#31
20170089239
2017-03-30

Exhaust muffler and sound deadening element

#32
20160281557
2016-09-29

Silencer for internal combustion engine

#33
20160245140
2016-08-25

Exhaust gas duct system for an internal combustion engine

#34
20160097309
2016-04-07

Suppressor for gaseous fuel system

#35
20160053642
2016-02-25

Muffler cutter

#36
20140161677
2014-06-12

Loose-fill insulation exhaust gas treatment device and methods of manufacturing

#37
20120273301
2012-11-01

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

#38
20120273300
2012-11-01

Lightweight polymeric exhaust components

#39
20120273299
2012-11-01

Muffler assembly and process of manufacture

#40
20120205191
2012-08-16

Exhaust system for motorcycle

#41
20120181106
2012-07-19

Exhaust Assembly For Use With A Combustion Engine

#42
20120111663
2012-05-10

Resonator for a dual-flow exhaust system

#43
20110192677
2011-08-11

Exhaust muffler device

#44
20110186376
2011-08-04

Muffler with integrated catalytic converter and polymeric muffler body

#45
20110147118
2011-06-23

Silencer/muffler

#46
20110073405
2011-03-31

Exhaust component

#47
20110061969
2011-03-17

Snap-action valve for exhaust system

#48
20110005860
2011-01-13

EXHAUST COMPONENT WITH REDUCED PACK

#49
20100307863
2010-12-09

COMPOSITE MUFFLER SYSTEM THERMOSETABLE POLYMERS

#50
20100300799
2010-12-02

Exhaust silencer device for internal combustion engine

#51
20100263762
2010-10-21

Wire tube structure for exhaust component

#52
20100224159
2010-09-09

Engine assembly having variable intake air tuning device and tuning method

#53
20100192880
2010-08-05

Exhaust pipe structure for saddle-ride type vehicle

#54
20090301807
2009-12-10

Exhaust muffler for exhaust system

#55
20090101434
2009-04-23

Integrated modular exhaust system

#56
20090007551
2009-01-08

Exhaust Gas Aftertreatment System

#57
20080308347
2008-12-18

Vehicular exhaust system

#58
20080245063
2008-10-09

Snap-action valve for exhaust system

#59
20080224083
2008-09-18

Snap-action valve for exhaust system

#60
20080196970
2008-08-21

Exhaust system for combustion engine

#61
20080093161
2008-04-24

Rear muffler assembly

#62
20080053748
2008-03-06

Vehicle exhaust systems

#63
20080035418
2008-02-14

Exhaust sound and emission control systems

#64
20070295002
2007-12-27

Motorcycle

#65
20070209354
2007-09-13

Exhaust system component

#66
20070051557
2007-03-08

Automobile exhaust pipe assembly

#67
20060283660
2006-12-21

Acoustic termination for a pressure monitoring system

#68
20060162995
2006-07-27

Muffler for an exhaust gas system

#69
20060124384
2006-06-15

Modular muffler with removable cartridge assembly

#70
20060054381
2006-03-16

Exhaust heat recovery muffler

#71
20060037808
2006-02-23

Active exhaust muffler

#72
20050284623
2005-12-29

Combined muffler/heat exchanger

#73
20050279571
2005-12-22

Exhaust sound and emission control systems

#74
20050167192
2005-08-04

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

#75
20050161283
2005-07-28

Vehicle exhaust systems

#76
20050155818
2005-07-21

Exhaust muffler

#77
20050103567
2005-05-19

Exhaust muffler for internal combustion engines

#78
20050061579
2005-03-24

Exhaust gas muffler and flow director

#79
15180868
2017-11-14

Dual purpose muffler