Patents-Review.com
ClassID:

137915 ⎘

F01N13/007 - 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 used as intake or exhaust silencer

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

Exhaust Muffler

 #2
20250314191
2025-10-09

Utility Vehicle

 #3
20250243796
2025-07-31

CONTROLLING NOISE ON SAFETY VALVES

 #4
20240347030
2024-10-17

SOLID-BODY STRUCTURE

 #5
20230103188
2023-03-30

Exhaust structure

 #6
20230003162
2023-01-05

Muffler and method for making the same

 #7
20220112832
2022-04-14

POWER SYSTEMS AND ENCLOSURES HAVING AN IMPROVED COMPRESSOR DRIVE

 #8
20220010716
2022-01-13

System and method for low CO emission engine

 #9
20210172357
2021-06-10

Device for screening NOsensor

 #10
20210156400
2021-05-27

Noise abatement for air blowers

 #11
20210025302
2021-01-28

Externally mounted in-line exhaust gas valve

 #12
20210025301
2021-01-28

Externally mounted in-line exhaust gas valve

 #13
20200392880
2020-12-17

Vehicle exhaust system

 #14
20200332687
2020-10-22

Device for controlling exhaust sound of vehicle

 #15
20200248598
2020-08-06

Tail pipe

 #16
20200173337
2020-06-04

Power systems and enclosures having improved cooling air flow

 #17
20200165954
2020-05-28

System and method for forming elongated perforations in an inner barrel section of an engine

 #18
20200157988
2020-05-21

EXHAUST VALVE DEVICE

 #19
20200109721
2020-04-09

Noise mitigating compressor

 #20
20200102865
2020-04-02

Muffler for an internal combustion engine

 #21
20200032691
2020-01-30

EXHAUST PIPE DEVICE OF SADDLE-RIDING VEHICLE

 #22
20190301340
2019-10-03

Muffler having movable baffle and control method of the same

 #23
20190264595
2019-08-29

System and method for low CO emission engine

 #24
20190085744
2019-03-21

Exhaust device for internal combustion engine

 #25
20190078476
2019-03-14

Exhaust device for internal combustion engine

 #26
20190063281
2019-02-28

Air exhausting device

 #27
20190055875
2019-02-21

Exhaust layout for off road vehicle

 #28
20190055866
2019-02-21

Exhaust device for internal combustion engine

 #29
20190040776
2019-02-07

Internal straight core

 #30
20180328266
2018-11-15

Apparatus for increasing flow rate in engine pipe and processing method therefor

 #31
20180274426
2018-09-27

Exhaust device

 #32
20180080364
2018-03-22

Exhaust device of motorcycle

 #33
20180058302
2018-03-01

Repackable Muffler

 #34
20180058292
2018-03-01

Mobile selective catalyst reduction system

 #35
20170314561
2017-11-02

Power systems and enclosures having an improved compressor drive

 #36
20170314451
2017-11-02

Power systems and enclosures having improved cooling air flow

 #37
20170138246
2017-05-18

Exhaust system for engine

 #38
20170089239
2017-03-30

Exhaust muffler and sound deadening element

 #39
20170074134
2017-03-16

Connection pipe for connecting an active muffler to an exhaust system for an internal combustion engine

 #40
20160290208
2016-10-06

Crash energy absorbing muffler

 #41
20160273424
2016-09-22

MOUNTING STRUCTURE OF VARIABLE VALVE FOR DUAL EXHAUST SYSTEM

 #42
20160245146
2016-08-25

Exhaust muffler

 #43
20160245140
2016-08-25

Exhaust gas duct system for an internal combustion engine

 #44
20160208788
2016-07-21

Hermetic compressor comprising a suction acoustic filter

 #45
20160146081
2016-05-26

Silencer for mid-bed air injection mixing

 #46
20160145820
2016-05-26

Integrated muffler for hydrovac system

 #47
20160123208
2016-05-05

Air induction system having an acoustic resonator

 #48
20160108792
2016-04-21

Component of an exhaust system

 #49
20160090889
2016-03-31

Exhaust system structure in internal combustion engine for vehicle

 #50
20160061075
2016-03-03

Muffler sound-insulation structure

 #51
20160032813
2016-02-04

Exhaust connection member with braided cover and method of making the same

 #52
20160017787
2016-01-21

Exhaust pipe

 #53
20150267593
2015-09-24

SYSTEM AND METHOD FOR FORMING ELONGATED PERFORATIONS IN AN INNER BARREL SECTION OF AN ENGINE

 #54
20150204280
2015-07-23

Gas flow unit, a gas treatment device and a combustion engine provided therewith

 #55
20150159537
2015-06-11

Exhaust gas aftertreatment module

 #56
20150068481
2015-03-12

Engine noise attenuation

 #57
20150004015
2015-01-01

Sound absorber for refrigerant compressor

 #58
20140291067
2014-10-02

Exhaust silencing device

 #59
20140166394
2014-06-19

Exhaust system for an internal combustion engine

 #60
20130333977
2013-12-19

Lightweight construction silencer

 #61
20130161124
2013-06-27

Exhaust system

 #62
20130129492
2013-05-23

Exhaust-gas turbocharger with silencer

 #63
20120112453
2012-05-10

Exhaust connection member with preformed braided cover

 #64
20110138772
2011-06-16

Turbine detuner for recovering kinetic energy from gas turbine engine exhaust gases

 #65
20100224159
2010-09-09

Engine assembly having variable intake air tuning device and tuning method

 #66
20090145119
2009-06-11

Exhaust diffuser for a truck

 #67
20060037592
2006-02-23

Exhaust manifold arrangement

 #68
17224778
2023-10-24

Marine drives having a muffler for tertiary exhaust outlet

 #69
15427478
2019-03-26

Stern drive arrangements having idle relief exhaust gas bypass