ClassID:

231949

H04R1/44 - CPC Classification

Classification description:

Details of transducers, loudspeakers or microphones Special adaptations for subaqueous use, e.g. for hydrophone

Recent Application in this class:
#1
20260156399
2026-06-04

EARPHONES AND METHODS FOR CONTROLLING EARPHONES

#2
20260129359
2026-05-07

CORE ASSEMBLIES FOR WATERPROOF EARPHONES AND WATERPROOF EARPHONES

#3
20260129358
2026-05-07

ACOUSTIC DEVICES

#4
20260122415
2026-04-30

ACOUSTIC MODULES AND ACOUSTIC DEVICES

#5
20260122414
2026-04-30

ACOUSTIC DEVICES

#6
20260122413
2026-04-30

WATERPROOF ASSEMBLY FOR SOUND TRANSMISSION HOLE OF ACOUSTIC DEVICE

#7
20260107089
2026-04-16

ACOUSTIC DEVICES

#8
20260075360
2026-03-12

ELECTRONIC DEVICE FOR PERFORMING OPERATION ACCORDING TO MOISTURE DETECTION, OPERATION METHOD THEREOF, AND STORAGE MEDIUM

#9
20260028102
2026-01-29

ANTI-FULL-THROAT DIVING DEVICE, AND UNDERWATER COMMUNICATION DEVICE AND MANUFACTURING METHOD AND COMMUNICATION METHOD THEREFOR

#10
20250358567
2025-11-20

MICROPHONE MODULE

#11
20250314795
2025-10-09

ACOUSTIC ROAD NOISE REMOVAL BY ADAPTIVE FILTERING OF MODELED GUIDED WAVES

#12
20250267399
2025-08-21

Low Cross Feed Hydrophone and Method of Manufacture

#13
20250234122
2025-07-17

PROTECTED ACOUSTIC TRANSDUCER

#14
20250203281
2025-06-19

CAMERA MICROPHONE DRAINAGE SYSTEM DESIGNED FOR BEAMFORMING

#15
20250196186
2025-06-19

ACOUSTIC TRANSDUCER

#16
20250193591
2025-06-12

UNDERWATER COMMUNICATION DEVICE

#17
20250193570
2025-06-12

EARPHONE WITHOUT COVERING AN EAR CANAL

#18
20250184660
2025-06-05

EARCUP FOR AUDIO COMMUNICATION AND HEADSET

#19
20250142252
2025-05-01

SPEAKER DEVICE

#20
20250106552
2025-03-27

FLUID-FILLED ACOUSTIC FLOW SHIELD

#21
20250071455
2025-02-27

Waterproof and Illuminated Speaker Systems and Devices

#22
20250039591
2025-01-30

ACOUSTIC OUTPUT APPARATUS

#23
20250030969
2025-01-23

ACOUSTIC OUTPUT APPARATUS AND METHODS THEREOF

#24
20250016487
2025-01-09

ACOUSTIC OUTPUT APPARATUS

#25
20240422466
2024-12-19

OPEN EARPHONE

#26
20240422460
2024-12-19

SOUND SYSTEM FOR A POOL AND POOL EQUIPPED WITH SUCH A SYSTEM

#27
20240406633
2024-12-05

Speaker

#28
20240406611
2024-12-05

ACOUSTIC OUTPUT APPARATUS

#29
20240388831
2024-11-21

ACOUSTIC OUTPUT DEVICE

#30
20240347268
2024-10-17

MAGNETIC FIELD AUDIO LOOP FOR SWIMMING POOLS

#31
20240334121
2024-10-03

SUBMERSIBLE SPEAKER SYSTEM WITH A COMPRESSIBLE SPACER

#32
20240334102
2024-10-03

ELECTRONIC DEVICE

#33
20240323579
2024-09-26

ACOUSTIC OUTPUT DEVICE AND COMPONENTS THEREOF

#34
20240313866
2024-09-19

WIRELESS AUDIO STREAMING SYSTEM FOR SWIMMERS AND UNDER WATER APPLICATIONS

#35
20240292138
2024-08-29

DETACHABLE LOUDSPEAKER AND METAL DETECTOR

#36
20240288302
2024-08-29

OPTICAL FIBER-BASED HYDROPHONE

#37
20240207907
2024-06-27

ACOUSTIC DRAINAGE STRUCTURE AND ELECTRONIC DEVICE

#38
20240205582
2024-06-20

Acoustic device

#39
20240179446
2024-05-30

SPEAKER DEVICE

#40
20240171892
2024-05-23

ACOUSTIC OUTPUT DEVICE AND NOISE REDUCTION AND SOUND TRANSMISSION DEVICE

#41
20240147149
2024-05-02

ACOUSTIC DEVICE, AND ELECTRONIC DEVICE

#42
20240121541
2024-04-11

Internal venting mechanisms for audio system with non-porous membrane

#43
20240107227
2024-03-28

UNDERWATER SURFACE MOUNTABLE SPEAKER

#44
20240094979
2024-03-21

PRE-RECEIVED AUDIO PLAYBACK FUNCTION IN WATERPROOF HEADPHONES

#45
20240073579
2024-02-29

Acoustic output apparatus

#46
20240064456
2024-02-22

SOUND BAR FOR DETERRENCE OF ASIAN CARP

#47
20240044828
2024-02-08

SUBSTRATE, PACKAGE, SENSOR DEVICE, AND ELECTRONIC APPARATUS

#48
20230403503
2023-12-14

Underwater speaker

#49
20230396912
2023-12-07

ACOUSTIC OUTPUT APPARATUS AND METHOD THEREOF

#50
20230388686
2023-11-30

ELECTROACOUSTIC TRANSDUCER AND MOUNTING STRUCTURE OF SAME

#51
20230362538
2023-11-09

Submersible speaker system with a compressible spacer

#52
20230353925
2023-11-02

AUDIO DEVICE WITH CONNECTION TERMINAL AND SENSOR

#53
20230336902
2023-10-19

Earphone without covering an ear canal

#54
20230294132
2023-09-21

Acoustic transducer

#55
20230276161
2023-08-31

Acoustic output apparatus

#56
20230276160
2023-08-31

Acoustic output apparatus

#57
20230269531
2023-08-24

UNDERWATER BLUETOOTH HEADPHONES FOR AQUATIC ENVIRONMENTS

#58
20230269530
2023-08-24

Methods And Apparatus For Wideband Acoustic Communication

#59
20230262371
2023-08-17

AUDIO APPARATUSES

#60
20230232145
2023-07-20

Acoustic output apparatus and methods thereof

#61
20230224048
2023-07-13

Wireless audio streaming system for swimmers and under water applications

#62
20230223791
2023-07-13

ACOUSTIC WAVE-BASED FULL-SEA-DEPTH-COVERING UNDERSEA WIRELESS CHARGING METHOD AND DEVICE

#63
20230223188
2023-07-13

Magnetic field audio loop for swimming pools

#64
20230188888
2023-06-15

SPEAKER MODULE AND ELECTRONIC DEVICE INCLUDING SPEAKER MODULE

#65
20230179915
2023-06-08

Camera microphone drainage system designed for beamforming

#66
20230171528
2023-06-01

Open earphone

#67
20230156406
2023-05-18

Diaphragm for high pressure waterproof microspeaker and high pressure waterproof microspeaker including the same

#68
20230156391
2023-05-18

Acoustic output device

#69
20230156390
2023-05-18

Acoustic output device

#70
20230145038
2023-05-11

Acoustic output device

#71
20230141946
2023-05-11

Acoustic output device

#72
20230109699
2023-04-13

Acoustic device

#73
20230070507
2023-03-09

ACOUSTIC OUTPUT APPARATUS AND METHOD THEREOF

#74
20230066263
2023-03-02

Acoustic output device

#75
20230062163
2023-03-02

WATERPROOF SOUND-TRANSMITTING SHEET

#76
20230027469
2023-01-26

High temperature high pressure acoustic sensor design and packaging

#77
20230012124
2023-01-12

Acoustic output device and components thereof

#78
20230008918
2023-01-12

Methods And Apparatus For Acoustic Backscatter Communication

#79
20230007380
2023-01-05

Acoustic output apparatus

#80
20220410082
2022-12-29

ACOUSTIC COMPOSITE INCLUDING A STIFFENING POLYMER, DEVICES, AND ASSEMBLIES INCLUDING THE SAME

#81
20220408172
2022-12-22

Acoustic output apparatus

#82
20220386012
2022-12-01

Acoustic output apparatus

#83
20220337940
2022-10-20

Sounding Component and Electronic Device

#84
20220303675
2022-09-22

Submersible microphone system with a compressible spacer

#85
20220279271
2022-09-01

Underwater ear pod system

#86
20220264212
2022-08-18

Open earphone

#87
20220248132
2022-08-04

Microphone unit

#88
20220247894
2022-08-04

Drainage channels for use in a camera

#89
20220225002
2022-07-14

Loudspeaker apparatus

#90
20220212920
2022-07-07

LIQUID-RESISTANT AIR INLET PASSIVE DEVICE AND METHODS OF MAKING SAME

#91
20220201390
2022-06-23

Audible end cap and handheld metal detector

#92
20220191606
2022-06-16

Voice-controlled household device

#93
20220140916
2022-05-05

Wireless audio streaming system for swimmers and under water applications

#94
20220132240
2022-04-28

Nonlinear Mixing of Sound Beams for Focal Point Determination

#95
20220116698
2022-04-14

Sound transmission holder and related speaker assembly electronic device

#96
20220103923
2022-03-31

Loudspeaker apparatus

#97
20220095024
2022-03-24

Internal venting mechanisms for audio system with non-porous membrane

#98
20220070570
2022-03-03

Acoustic output device and noise reduction and sound transmission device

#99
20220053266
2022-02-17

Electronic device and acoustic waterproof structure

#100
20220038814
2022-02-03

Terminal device

#101
20220030347
2022-01-27

Acoustic output apparatus

#102
20220021969
2022-01-20

WATERPROOF MICROPHONE

#103
20220021963
2022-01-20

Acoustic output apparatus and methods thereof

#104
20220021960
2022-01-20

Loudspeaker

#105
20210400381
2021-12-23

Camera microphone drainage system designed for beamforming

#106
20210385568
2021-12-09

Keyless control device and earphone

#107
20210377645
2021-12-02

Acoustic output apparatus and method thereof

#108
20210352396
2021-11-11

Earplug with wireless audio communication

#109
20210345038
2021-11-04

Underwater transducer for wide-band communication

#110
20210345033
2021-11-04

PORTABLE AUDIO EQUIPMENT

#111
20210329376
2021-10-21

Speaker device

#112
20210327246
2021-10-21

SYSTEM AND METHOD FOR DETECTION OF AN ALARM STATE IN A BODY OF WATER

#113
20210321648
2021-10-21

ACOUSTIC TREATMENT OF FERMENTED FOOD PRODUCTS

#114
20210289281
2021-09-16

Acoustic output apparatus

#115
20210274281
2021-09-02

Acoustic output apparatus

#116
20210274280
2021-09-02

Acoustic output device and buttons thereof

#117
20210274278
2021-09-02

Acoustic output apparatus

#118
20210274276
2021-09-02

Earphone without covering an ear canal

#119
20210271115
2021-09-02

Microphone noise reduction system and smart glasses using the system

#120
20210258687
2021-08-19

Dual-resonance dual-aperture subwoofer system

#121
20210258672
2021-08-19

Protection of integrated low power system designed to monitor the acoustic environment

#122
20210255051
2021-08-19

Breathable waterproof sheet

#123
20210251095
2021-08-12

Waterproof membrane, waterproof member including same, and electronic device

#124
20210243518
2021-08-05

Acoustic output device and components thereof

#125
20210235181
2021-07-29

Acoustic output apparatus

#126
20210227319
2021-07-22

System and method for simultaneously attenuating high-frequency sounds and amplifying low-frequency sounds produced by underwater acoustic pressure source

#127
20210227306
2021-07-22

Audio glasses

#128
20210223577
2021-07-22

Acoustic output device

#129
20210185421
2021-06-17

Acoustic output apparatus with a plurality of acoustic drivers and methods thereof

#130
20210176550
2021-06-10

Waterproof sound-transmitting member and electronic device provided therewith

#131
20210168500
2021-06-03

Acoustic output apparatus

#132
20210168498
2021-06-03

Acoustic output apparatus with drivers in multiple frequency ranges and bluetooth low energy receiver

#133
20210168495
2021-06-03

Acoustic output apparatus

#134
20210168485
2021-06-03

Open earphone

#135
20210160610
2021-05-27

Acoustic output apparatus and methods thereof

#136
20210160606
2021-05-27

Open earphone

#137
20210160602
2021-05-27

Acoustic device

#138
20210152907
2021-05-20

SPEAKER APPARATUS

#139
20210152903
2021-05-20

Component for draining off water from the speakers of a waterproof electronic device

#140
20210127200
2021-04-29

Acoustic output device

#141
20210127197
2021-04-29

Acoustic output apparatus

#142
20210127196
2021-04-29

Headphones System and Method

#143
20210127193
2021-04-29

Loudspeaker apparatus

#144
20210112329
2021-04-15

Open earphone

#145
20210105559
2021-04-08

Underwater subwoofer with advanced cooling system

#146
20210099793
2021-04-01

Extreme low frequency microphone/hydrophone for exploration of oceanic and atmospheric dynamics

#147
20210088683
2021-03-25

Hydrophone fairing

#148
20210067869
2021-03-04

Aquatic acoustic enclosure

#149
20210006894
2021-01-07

Clusters of underwater seismic sources

#150
20200404126
2020-12-24

Automatically determining a wet microphone condition in a camera

#151
20200395038
2020-12-17

System and method for drowning detection

#152
20200389725
2020-12-10

Submersible microphone system with a compressible spacer

#153
20200383444
2020-12-10

Roll top backpack with speaker device

#154
20200374013
2020-11-26

Methods and apparatus for acoustic backscatter communication

#155
20200351579
2020-11-05

Portable solar powered smart speaker system

#156
20200336826
2020-10-22

Directional microphone and system and method for capturing and processing sound

#157
20200336814
2020-10-22

Chair mountable audio and charging system for mobile and portable electronic devices

#158
20200322720
2020-10-08

Audio component drainage system for image capture device

#159
20200320969
2020-10-08

Enhanced hour-glass transducer

#160
20200315407
2020-10-08

Loose hair collection device

#161
20200275198
2020-08-27

Waterproof speaker system

#162
20200252138
2020-08-06

Acoustic data transmission, telemetry and underwater communication systems

#163
20200221222
2020-07-09

High-water pressure waterproof microspeaker

#164
20200221221
2020-07-09

Waterproof headphone structure

#165
20200209429
2020-07-02

REAL-TIME METOCEAN SENSOR ARRAYS

#166
20200196037
2020-06-18

Loudspeakers and related components and methods

#167
20200145750
2020-05-07

Pressure regulator

#168
20200131029
2020-04-30

Waterproof microphone and associated packing techniques

#169
20200128333
2020-04-23

DIAGONAL RESONANCE SOUND AND ULTRASONIC TRANSDUCER

#170
20200128311
2020-04-23

Waterproof speaker device

#171
20200084539
2020-03-12

Liquid-resistant modules, acoustic transducers and electronic devices

#172
20200071159
2020-03-05

Directional microphone and associated packing techniques

#173
20200033187
2020-01-30

Membrane hydrophone for high frequency ultrasound and method of manufacture

#174
20200003587
2020-01-02

Non-acoustic measurement unit

#175
20190364177
2019-11-28

Automatically determining a wet microphone condition in a camera

#176
20190335257
2019-10-31

Speaker module

#177
20190321851
2019-10-24

Acoustic transducer

#178
20190310155
2019-10-10

Breathable waterproof sheet

#179
20190268692
2019-08-29

Acoustic protective cover assembly containing a retracted membrane material

#180
20190259363
2019-08-22

Waterproof sound-transmitting sheet

#181
20190255801
2019-08-22

Waterproof sound-transmitting sheet

#182
20190222921
2019-07-18

Electronic device including speaker

#183
20190215612
2019-07-11

Speaker

#184
20190191242
2019-06-20

Waterproof sound-transmitting sheet

#185
20190182586
2019-06-13

Micro speaker device with water-proof structure

#186
20190149914
2019-05-16

Submersible audio amplifier

#187
20190104358
2019-04-04

Acoustic transmission member and method of designing same

#188
20190098415
2019-03-28

Evacuation of liquid from acoustic space

#189
20190082547
2019-03-14

Concealed barometric vent for an electronic device

#190
20190072903
2019-03-07

Electronic device including waterproof structure

#191
20190069059
2019-02-28

Sound receptacle

#192
20190058107
2019-02-21

Thermo-optical method of phrase transformational transduction

#193
20190057680
2019-02-21

Low-frequency broadband sound source for underwater navigation and communication

#194
20190055119
2019-02-21

Directional microphone and associated packing techniques

#195
20190052942
2019-02-14

PORTABLE SOLAR POWERED SMART SPEAKER SYSTEM

#196
20190028815
2019-01-24

Multi-device transducer module, apparatus including the transducer module and method of manufacturing the transducer module

#197
20190013001
2019-01-10

Underwater flextensional transducer

#198
20190003880
2019-01-03

ELECTRO-OPTICAL TRANSDUCER

#199
20180376245
2018-12-27

APPARATUS, SYSTEM AND METHOD FOR UNDERWATER VOICE COMMUNICATION BY A DIVER

#200
20180352326
2018-12-06

Underwater ultrasonic communication system and method

#201
20180343518
2018-11-29

Submersible microphone system with a compressible spacer

#202
20180329055
2018-11-15

Method and apparatus for detecting that a device is immersed in a liquid

#203
20180324507
2018-11-08

Sensor system for measuring acceleration and pressure

#204
20180321419
2018-11-08

Calibration of combined acceleration and pressure sensors

#205
20180310092
2018-10-25

Ultrathin acoustic impedance converter

#206
20180294893
2018-10-11

System for making motion pictures under water

#207
20180288517
2018-10-04

RACE PROGRESS APPARATUS

#208
20180275313
2018-09-27

Real-time metocean sensor arrays

#209
20180263237
2018-09-20

AQUATIC MAMMAL DETERRENT SYSTEM AND METHOD

#210
20180262840
2018-09-13

Evacuation of liquid from acoustic space

#211
20180242079
2018-08-23

Sound device

#212
20180234768
2018-08-16

Speaker System

#213
20180234190
2018-08-16

Wireless audio streaming system for swimmers and under water applications

#214
20180228259
2018-08-16

Protective cover for electronic device

#215
20180227668
2018-08-09

Electronic device including speaker

#216
20180227667
2018-08-09

High-pressure water resistant microspeaker with improved coil structure

#217
20180227655
2018-08-09

Electronic device

#218
20180220229
2018-08-02

SPEAKER APPARATUS, SPEAKER SYSTEM, AND CONTROL METHOD OF SPEAKER APPARATUS

#219
20180206030
2018-07-19

Water resistant loudspeaker

#220
20180168244
2018-06-21

Garment with integrated speakers

#221
20180152800
2018-05-31

Speaker device

#222
20180136065
2018-05-17

Hydrogel microphone

#223
20180084340
2018-03-22

Submersible microphone system with a compressible spacer

#224
20180084339
2018-03-22

Submersible speaker system with a compressible spacer

#225
20180084324
2018-03-22

Speaker module architecture

#226
20180081406
2018-03-22

Acoustic device

#227
20180070161
2018-03-08

Microphone unit for an action camera

#228
20180063637
2018-03-01

Side Diaphragm with a Waterproof Function and Microspeaker Having the Same

#229
20180063634
2018-03-01

Vented acoustic transducers and related methods and systems

#230
20180063613
2018-03-01

Pool float with built in speakers and power source

#231
20180035204
2018-02-01

Waterproof electronic device

#232
20180035203
2018-02-01

WATERPROOF SOUND TRANSMISSON STRUCTURE, AND ELECTRONIC DEVICE AND ELECTRONIC DEVICE CASE INCLUDING SAME

#233
20180033423
2018-02-01

Acoustic device for forming a wall of sound underwater

#234
20170339320
2017-11-23

Automatically determining a wet microphone condition in a camera

#235
20170325011
2017-11-09

Waterproof sound-permeable membrane, waterproof sound-permeable member, and electronic device

#236
20170318396
2017-11-02

Multi-device transducer module, apparatus including the transducer module and method of manufacturing the transducer module

#237
20170280236
2017-09-28

Hydrophobic and oleophobic membrane, and waterproof sound device using same

#238
20170245032
2017-08-24

Electronic device having side acoustic emission speaker device

#239
20170238105
2017-08-17

Passive vibration cancellation system for microphone assembly

#240
20170230739
2017-08-10

Rock speaker

#241
20170201826
2017-07-13

Acoustic port with an embedded membrane

#242
20170195784
2017-07-06

Waterproof speaker

#243
20170181303
2017-06-22

Membrane for liquid-resistant devices and methods of making a membrane

#244
20170180850
2017-06-22

WATERPROOF ELECTRONIC DEVICE WITH PRESSURE-EQUILIBRIUM FUNCTIONS

#245
20170164495
2017-06-08

SUBSEA CONVERTER MODULE

#246
20170164104
2017-06-08

Waterproof structure for microphone

#247
20170142524
2017-05-18

Directional microphone and associated packing techniques

#248
20170142515
2017-05-18

Systems and methods for monitoring and classifying marine animals based on acoustic signals

#249
20170142514
2017-05-18

Boundary microphone

#250
20170137282
2017-05-18

Waterproof microphone and associated packing techniques

#251
20170081000
2017-03-23

Cleaning and grooming water submerged structures using acoustic pressure shock waves

#252
20170041706
2017-02-09

Device having a composite acoustic membrane

#253
20170026743
2017-01-26

Low capacitance, shielded, watertight device interconnect

#254
20170026742
2017-01-26

Waterproof sound-transmitting member

#255
20170019731
2017-01-19

MONOLITHIC CERAMIC TRANSDUCERS WITH EMBEDDED ELECTRODES

#256
20170019726
2017-01-19

Race progress apparatus

#257
20170006398
2017-01-05

Automatically determining a wet microphone condition in a sports camera

#258
20170006397
2017-01-05

Automatic microphone selection in a sports camera based on wet microphone determination

#259
20170006396
2017-01-05

Automatic microphone selection in a sports camera

#260
20170006195
2017-01-05

Drainage channel for sports camera

#261
20160366767
2016-12-15

Printed circuit board, waterproof microphone and production process thereof

#262
20160360627
2016-12-08

ENCLOSURE FOR ELECTRONIC DEVICE

#263
20160351205
2016-12-01

System and method for enhancing speech of a diver wearing a mouthpiece

#264
20160295308
2016-10-06

Speaker assembly and integrated light

#265
20160294106
2016-10-06

Connector assembly

#266
20160286308
2016-09-29

SEPARABLE FLOATING WATER SHOW SPEAKER

#267
20160270454
2016-09-22

Garment with integrated speakers

#268
20160269823
2016-09-15

Waterproof earphone structure

#269
20160234594
2016-08-11

Microphone

#270
20160219367
2016-07-28

PORTABLE WIRELESS WATERPROOF SPEAKERS WITH POWER MANAGEMENT

#271
20160212526
2016-07-21

Waterproof speaker module

#272
20160205469
2016-07-14

Water proof speaker device

#273
20160167756
2016-06-16

Submersible remotely operated vehicle

#274
20160146935
2016-05-26

Method and apparatus for detecting that a device is immersed in a liquid

#275
20160139245
2016-05-19

Sparsity-driven passive tracking of acoustic sources

#276
20160134965
2016-05-12

Apparatus, system and method for underwater voice communication by a diver

#277
20160119700
2016-04-28

Chair mountable audio and charging system for mobile and portable electronic devices

#278
20160094912
2016-03-31

Underwater voice communication devices and associated methods

#279
20160094911
2016-03-31

Underwater communication systems, underwater speakers, underwater microphone assemblies and methods

#280
20160086093
2016-03-24

Passive tracking of underwater acoustic sources with sparse innovations

#281
20160082466
2016-03-24

Water jet device and water dance speaker

#282
20160037256
2016-02-04

Microphone

#283
20160007127
2016-01-07

Passive vibration cancellation system for microphone assembly

#284
20150362394
2015-12-17

Pressure-sensitive sensor

#285
20150304767
2015-10-22

Waterproof sound-transmitting membrane, waterproof sound-transmitting member including same, electronic device, electronic device case, and waterproof sound-transmitting structure

#286
20150302843
2015-10-22

Underwater acoustic projector

#287
20150289051
2015-10-08

Water-repellent earphone

#288
20150245134
2015-08-27

Microphone waterproof structure

#289
20150239537
2015-08-27

Snorkel Apparatus

#290
20150231661
2015-08-20

Water dancing speaker

#291
20150222986
2015-08-06

Waterproof Speaker System

#292
20150222985
2015-08-06

Waterproof Speaker

#293
20150215707
2015-07-30

PBLG based planar microphones

#294
20150172797
2015-06-18

Electro-Acoustic Converters, Electronic Devices, Waterproof Covers, and Air Leakage Test Methods For Electro-Acoustic Converters

#295
20150163572
2015-06-11

Pressure vent for speaker or microphone modules

#296
20150126805
2015-05-07

Hydraulic microphone

#297
20150110320
2015-04-23

Earphone assembly

#298
20150071472
2015-03-12

Waterproof sound-permitting sheet, method of manufacturing same, and electronic device provided with waterproof sound-permitting sheet

#299
20150003656
2015-01-01

Garment With Waterproof Receptacle

#300
20140376758
2014-12-25

UNIVERSAL PROTECTIVE HOUSING AND SOUND SYSTEM