F02M35/1294 - CPC Classification Index

ClassID:

141042 ⎘

F02M35/1294 - 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 Amplifying, modulating, tuning or transmitting sound, e.g. directing sound to the passenger cabin; Sound modulation

Recent Application in this class:

20250250954

2025-08-07

INTAKE NOISE AMPLIFYING SYSTEM OF INTERNAL COMBUSTION ENGINE

20230184201

2023-06-15

Engine intake sound amplifier

20220381211

2022-12-01

Engine intake system

20220381210

2022-12-01

Engine intake system

20210363948

2021-11-25

Apparatus for amplifying sound waves

20200291908

2020-09-17

Sound enhancing system

20200228083

2020-07-16

Sound control device for controlling load based on continuous sound control signal

20200018272

2020-01-16

ENGINE AIR INDUCTION RESISTIVE FOAM ELEMENT SOUND ABSORBER AND SILENCER

20190186447

2019-06-20

Air cleaner assembly of vehicle having supporting members

#10

20190172441

2019-06-06

PASSIVE SOUND ENHANCEMENT SYSTEM FOR A VEHICLE

#11

20190120187

2019-04-25

Vacuum actuated multi-frequency quarter-wave resonator for an internal combustion engine

#12

20180328321

2018-11-15

Sound system for vehicle

#13

20180320646

2018-11-08

Road vehicle with an internal combustion engine and provided with an exhaust noise transmission device

#14

20180313307

2018-11-01

PNEUMATICALLY INSULATING AND ACOUSTICALLY PERMEABLE SYMPOSER DEVICE FOR A NOISE TRANSMISSION DUCT OF AN INTERNAL COMBUSTION ENGINE

#15

20180238277

2018-08-23

Intake sound introduction device

#16

20180135573

2018-05-17

Vacuum actuated multi-frequency quarter-wave resonator for an internal combustion engine

#17

20180112636

2018-04-26

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

#18

20180080402

2018-03-22

Vehicle control unit

#19

20170314543

2017-11-02

Suction muffler for a hermetically encapsulated refrigerant compressor

#20

20160333832

2016-11-17

Intake sound introducing apparatus

#21

20160281660

2016-09-29

Multi-frequency quarter-wave resonator for an internal combustion engine

#22

20160265479

2016-09-15

Vehicular suction noise transmission system

#23

20160160784

2016-06-09

Determination of the point in time of a predetermined open state of a fuel injector

#24

20160108870

2016-04-21

Intake system of engine

#25

20150361934

2015-12-17

Multi-frequency quarter-wave resonator for an internal combustion engine vehicle

#26

20150176550

2015-06-25

Device for transmitting sound

#27

20150114348

2015-04-30

Multiple tap aspirator

#28

20150092957

2015-04-02

Vehicle sound generation apparatus, and vehicle sound generation method

#29

20140284136

2014-09-25

Intake sound introducing apparatus

#30

20140165950

2014-06-19

Active control sound generator

#31

20140121896

2014-05-01

Engine sound enhancement system for a fixed gear transmission

#32

20130230185

2013-09-05

Sound generating device for vehicle, and sound generating method for vehicle

#33

20130199487

2013-08-08

Mapped sound generator

#34

20130121501

2013-05-16

Active noise control apparatus for intake system of vehicle

#35

20130037005

2013-02-14

INTERNAL COMBUSTION ENGINE HAIVNG CYLINDER DEACTIVATION

#36

20130008738

2013-01-10

Sound transmission system

#37

20130008737

2013-01-10

Control device of a motor vehicle

#38

20130008402

2013-01-10

Sound transmission system

#39

20110315472

2011-12-29

Intake sound generation apparatus for internal combustion engine

#40

20110192368

2011-08-11

METHOD AND SYSTEM FOR PROCESSING ENGINE NOISE

#41

20110147116

2011-06-23

Tunable sound transmission device for a motor vehicle

#42

20110132313

2011-06-09

INTAKE SOUND GENERATOR

#43

20100329476

2010-12-30

Tunable, sound enhancing air induction system for internal combustion engine

#44

20100224439

2010-09-09

Intake sound adjusting device

#45

20090250290

2009-10-08

Device for noise transmission in a motor vehicle

#46

20090222192

2009-09-03

Straddle-type vehicle and combustion controller for straddle-type vehicle

#47

20090057054

2009-03-05

Sound generator with structurally and acoustically coupled sound radiation panel and method for manufacturing the same

#48

20090000587

2009-01-01

SOUND QUALITY CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

#49

20070295553

2007-12-27

Vehicle intake sound introducing apparatus

#50

20070292281

2007-12-20

Device and method for amplifying suction noise

#51

20070277768

2007-12-06

Device and method for amplifying suction noise

#52

20070209352

2007-09-13

Method for customizing the properties of a drive assembly in motor vehicles

#53

20070186895

2007-08-16

Air cleaner box, intake sound control apparatus, and intake sound control method

#54

20070131189

2007-06-14

Intake device of internal combustion engine

#55

20070079784

2007-04-12

Sound increase apparatus

#56

20070044747

2007-03-01

Air intake sound control structure

#57

20060283658

2006-12-21

Sound increase apparatus

#58

20060075988

2006-04-13

Intake system for an internal combustion engine

#59

20060060419

2006-03-23

Apparatus for transmitting sound in a motor vehicle

#60

20060042873

2006-03-02

Apparatus for transmitting sound in a motor vehicle

#61

20050133300

2005-06-23

Device for establishing noise in a motor vehicle

#62

20050121255

2005-06-09

Device for establishing noise in a motor vehicle

#63

20050121254

2005-06-09

Device for establishing noise in a motor vehicle

#64

15664433

2018-11-27

Engine sound production systems and methods

#65

15091007

2019-01-15

Outboard motor with sound enhancement device and method for modifying sounds produced by air intake system of an outboard motor