ClassID:

141035

F02M35/1255 - CPC Classification

Classification description:

Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines; Intake silencers Sound modulation, transmission or amplification using resonance

Sub-classes:
Recent Application in this class:
#1
20250250954
2025-08-07

INTAKE NOISE AMPLIFYING SYSTEM OF INTERNAL COMBUSTION ENGINE

#2
20250230786
2025-07-17

PROPULSION DEVICE, WATERCRAFT PROPULSION UNIT, AND WATERCRAFT WITH WATERCRAFT PROPULSION UNIT

#3
20250198373
2025-06-19

INTERNAL COMBUSTION ENGINE WITH AN IMPROVED INTAKE LINE

#4
20240125261
2024-04-18

Device increasing engine efficiency and reducing exhaust and noise

#5
20240075418
2024-03-07

FILTER SYSTEM COMPRISING A RESONATOR

#6
20240018924
2024-01-18

High temperature noise and vibration enabler for composite resonator

#7
20230053401
2023-02-23

Intake noise reduction structure for vehicle

#8
20220397082
2022-12-15

Method and system for diagnosing an evaporative emissions system

#9
20220260045
2022-08-18

Resonator insert for insertion into an intake pipe of a turbocharger, turbocharger and resonator

#10
20220186693
2022-06-16

Outboard machine

#11
20220145836
2022-05-12

Air cleaner housing for a vehicle

#12
20220128020
2022-04-28

Air cleaner for vehicles

#13
20220126232
2022-04-28

Filter element for mounting in an air cleaner housing of a vehicle

#14
20220049672
2022-02-17

Air duct of an internal combustion engine

#15
20210123399
2021-04-29

Fluid pipe arrangement

#16
20200408179
2020-12-31

Straddled vehicle

#17
20200408178
2020-12-31

Resonator

#18
20200408139
2020-12-31

Supercharger integral resonator

#19
20200340434
2020-10-29

Vehicle air cleaner

#20
20200232429
2020-07-23

Inline high frequency fiber silencer

#21
20200063700
2020-02-27

Vehicle Charge Air Cooler with Resonator Chamber, and Engine Air Induction System

#22
20190178209
2019-06-13

Intake manifold

#23
20190120184
2019-04-25

INTAKE DEVICE OF INTERNAL COMBUSTION ENGINE

#24
20190107087
2019-04-11

Internal combustion engine pipe and internal combustion engine

#25
20190063382
2019-02-28

SILENCER SYSTEMS AND ASSEMBLIES

#26
20190032612
2019-01-31

Silencer having expansion chamber and partition

#27
20180363599
2018-12-20

Intake duct structure of engine intake system for internal combustion engine

#28
20180347521
2018-12-06

Work vehicle

#29
20180291848
2018-10-11

Vehicle resonator and vehicle air cleaner having the same

#30
20180258891
2018-09-13

Silencing device

#31
20180245553
2018-08-30

Vehicular resonator

#32
20180223733
2018-08-09

ACOUSTIC TREATMENT ASSEMBLY FOR A TURBINE SYSTEM

#33
20180149122
2018-05-31

Vehicle silencer

#34
20180142652
2018-05-24

MUFFLING APPARATUS

#35
20180112636
2018-04-26

Internal combustion engine provided with a device for the amplification of the intake sound

#36
20180043765
2018-02-15

Motor vehicle having a frame-like assembly carrier as a component of a bodywork in the front end region

#37
20170284350
2017-10-05

Saddle-ride type vehicle

#38
20170284349
2017-10-05

Structure for mounting resonators to duct

#39
20170249933
2017-08-31

Sound attenuation device and method

#40
20170241310
2017-08-24

Acoustic device

#41
20170204881
2017-07-20

Supercharger outlet resonator

#42
20170130046
2017-05-11

Thermoplastic polyester elastomer composition

#43
20170089308
2017-03-30

Resonator structure of saddle-ride vehicle, and saddle-ride vehicle

#44
20170074220
2017-03-16

Muffler

#45
20160186702
2016-06-30

Fresh air system

#46
20160160818
2016-06-09

Air induction system having an acoustic resonator

#47
20160102637
2016-04-14

Air cleaner assembly with integrated acoustic resonator

#48
20150354513
2015-12-10

Resonator Apparatus for Vehicles

#49
20150345440
2015-12-03

Intake noise reduction device and straddle-type vehicle including the same

#50
20150226163
2015-08-13

Resonator for vehicle

#51
20150184625
2015-07-02

SELF-ADJUSTING RESONATOR

#52
20150152819
2015-06-04

SELF-ADJUSTING RESONATOR

#53
20150144088
2015-05-28

Variable intake system for vehicle

#54
20150068481
2015-03-12

Engine noise attenuation

#55
20140338628
2014-11-20

Torque increase resonator

#56
20140196978
2014-07-17

SILENCER AND METHOD FOR MANUFACTURING THE SAME

#57
20140190439
2014-07-10

Intake apparatus

#58
20130306393
2013-11-21

Saddle-ride type vehicle

#59
20130263811
2013-10-10

Air intake apparatus for internal combustion engine

#60
20120222643
2012-09-06

SWIRL GUIDING ACOUSTIC DEVICE WITH AN INTERNAL COAXIALLY INTEGRATED SWIRL GUIDE STRUCTURE

#61
20120126537
2012-05-24

Cogeneration apparatus

#62
20110308494
2011-12-22

Integrated idealized inlet for engine air induction system

#63
20110011670
2011-01-20

Muffling structure of vent pipe and muffling structure of case

#64
20100224159
2010-09-09

Engine assembly having variable intake air tuning device and tuning method

#65
20100071676
2010-03-25

Resonator and crankcase ventilation system for internal combustion engine

#66
20090242323
2009-10-01

Air duct as tuning mechanism and engine cover

#67
20090236171
2009-09-24

Intake air sound generation device

#68
20090229556
2009-09-17

Calibrated air intake tract having air infusion insert

#69
20090199808
2009-08-13

INTAKE MANIFOLD

#70
20090178880
2009-07-16

Air-Suction-Noise Reduction Device and Working Machine With the Same

#71
20090078497
2009-03-26

Internal combustion engine equipped with intake silencer

#72
20090007876
2009-01-08

Air induction system with resonator bypass valve

#73
20090000587
2009-01-01

SOUND QUALITY CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

#74
20080236938
2008-10-02

INDUCTION SYSTEM DUCT WITH NOISE ATTENUATING HOLES

#75
20080236534
2008-10-02

Resonator for an intake system of a motor vehicle

#76
20080195298
2008-08-14

Calibrated air intake tract having air infusion insert

#77
20080184705
2008-08-07

Device for turbocharging an internal combusting engine comprising a pulsation damping chamber

#78
20080072863
2008-03-27

Multicylinder internal combustion engine with resonator

#79
20080066999
2008-03-20

Continuously variable tuned resonator

#80
20080053393
2008-03-06

Calibrated air intake tract for internal combustion engines

#81
20080051983
2008-02-28

Calibration method for air intake tracts for internal combustion engines

#82
20080041657
2008-02-21

Muffler duct

#83
20080035092
2008-02-14

Air duct orifice for reducing low frequency noise

#84
20080023262
2008-01-31

Air-intake apparatus

#85
20080017440
2008-01-24

Noise reduction apparatus

#86
20080017156
2008-01-24

Air-intake device for internal combustion engine having noise reduction mechanism

#87
20070266988
2007-11-22

Outboard engine unit

#88
20070163533
2007-07-19

Intake muffler

#89
20070113815
2007-05-24

Intake apparatus

#90
20070044748
2007-03-01

Vehicular intake system

#91
20070029134
2007-02-08

Dual-neck plane wave resonator

#92
20070023230
2007-02-01

Variable resonator

#93
20070012276
2007-01-18

Intake system of engine

#94
20060231054
2006-10-19

Modular resonator

#95
20060180389
2006-08-17

Tubular acoustic silencer

#96
20060032699
2006-02-16

Resonator for vehicle

#97
20060006016
2006-01-12

Motorcycle

#98
20060005801
2006-01-12

Engine

#99
20050279319
2005-12-22

Filter box with resonator and reservoir

#100
20050252476
2005-11-17

Mounting structure for resonator

#101
20050224036
2005-10-13

Integrated air induction system

#102
20050217930
2005-10-06

Systems and methods for controlling acoustical damping

#103
20050217635
2005-10-06

Intake system for an internal combustion engine

#104
20050194207
2005-09-08

Apparatus and method of sound attenuation in a system employing a VSD and a quarter-wave resonator

#105
20050072626
2005-04-07

Noise control type intake hose

#106
20050051384
2005-03-10

AIR INTAKE SILENCER

#107
20050011699
2005-01-20

Muffler

#108
20050000362
2005-01-06

Evaporative emissions filter

#109
18510309
2025-03-04

Engine intake device for forklifts

#110
17713624
2023-02-14

Marine engine intake manifolds having noise attenuation

#111
16197437
2020-01-21

Vehicle charge air cooler with an integrated resonator