Patents-Review.com
ClassID:

232143 ⎘

H04R2217/01 - CPC Classification

Classification description:

Details of magnetostrictive, piezo-electric, or electrostrictive transducers covered by or but not provided for in any of their subgroups Non-planar magnetostrictive, piezo-electric or electrostrictive benders

Recent Application in this class:
#1
20260129372
2026-05-07

DRIVER UNIT AND HEADPHONE

 #2
20260040826
2026-02-05

THREE-DIMENSIONAL TEXTURED CERAMIC PIEZOELECTRIC TRANSDUCERS AND METHODS OF FORMING SAME

 #3
20250373989
2025-12-04

In-Line Focused Acoustic Energy Transducer and Methods of Use

 #4
20250359973
2025-11-27

ANTIBACTERIAL ELECTRIC TOOTHBRUSH BASED ON PULSED ULTRASONIC PIEZOELECTRIC RESPONSE PRINCIPLE, AND ANTIBACTERIAL METHOD

 #5
20250240577
2025-07-24

Shear Mode Transducer and Methods

 #6
20240224803
2024-07-04

APPARATUS

 #7
20240223963
2024-07-04

APPARATUS

 #8
20230354712
2023-11-02

Audio Device And Driving Method Thereof, And Display Device

 #9
20230353948
2023-11-02

ACOUSTIC OUTPUT DEVICES

 #10
20230320221
2023-10-05

ACOUSTIC DEVICES

 #11
20230304197
2023-09-28

Highly Sensitive Acoustic Fabric Including An Acoustic Fiber Transducer

 #12
20230076542
2023-03-09

Devices, systems, and methods for noise reduction

 #13
20230070821
2023-03-09

PASSIVE INTEGRITY MANAGEMENT OF AN IMPLANTABLE DEVICE

 #14
20220329933
2022-10-13

High performance transparent piezoelectric transducers as an additional sound source for personal audio devices

 #15
20220272458
2022-08-25

Piezoelectric element

 #16
20220201388
2022-06-23

High performance transparent piezoelectric transducers as an additional sound source for personal audio devices

 #17
20200178000
2020-06-04

MEMS sound transducer

 #18
20190367355
2019-12-05

Microelectromechanical transducer

 #19
20190222941
2019-07-18

Piezoelectric microphone

 #20
20190016588
2019-01-17

Microelectromechanical transducer

 #21
20180160232
2018-06-07

Sound generator, vibration member for the sound generator, and sound generation system

 #22
20180124530
2018-05-03

Passive integrity management of an implantable device

 #23
20180070183
2018-03-08

Speaker arrangement

 #24
20170331030
2017-11-16

Electroacoustic transduction film and manufacturing method of electroacoustic transduction film

 #25
20170311087
2017-10-26

Sound generator, vibration member for the sound generator, and sound generation system

 #26
20170238099
2017-08-17

Electro-acoustic transducer

 #27
20170223465
2017-08-03

Electroacousitic loudspeaker system for use in a partial enclosure

 #28
20170195798
2017-07-06

Acoustic generator, acoustic generation device, and electronic apparatus

 #29
20160366521
2016-12-15

Electroacousitic loudspeaker system for use in a partial enclosure

 #30
20160219374
2016-07-28

Multi-mode microphones

 #31
20160157370
2016-06-02

Electronic apparatus

 #32
20160157021
2016-06-02

Electroacoustic transducer

 #33
20160155926
2016-06-02

Electroacoustic transducer

 #34
20160119721
2016-04-28

Electroacoustic converter

 #35
20160119719
2016-04-28

Electroacoustic converter and electronic device

 #36
20160112818
2016-04-21

Manufacturing method of a condenser microphone

 #37
20160088409
2016-03-24

Acoustic device

 #38
20150362394
2015-12-17

Pressure-sensitive sensor

 #39
20150326977
2015-11-12

ACOUSTIC TRANSDUCERS WITH BEND LIMITING MEMBER

 #40
20150304779
2015-10-22

Piezoelectric electroacoustic transducer

 #41
20150245145
2015-08-27

Sound generator, vibration member for the sound generator, and sound generation system

 #42
20150245144
2015-08-27

Loudspeaker with piezoelectric elements

 #43
20150172824
2015-06-18

Wearable communication device

 #44
20150119758
2015-04-30

Bioacoustic sensor with active noise correction

 #45
20150092974
2015-04-02

Microphone having closed cell foam body

 #46
20150071468
2015-03-12

Electrostatic electroacoustic transducer and fabricating methods for the same

 #47
20150063595
2015-03-05

SPEAKER APPARATUS

 #48
20140355791
2014-12-04

Multifunctional earphone

 #49
20140301596
2014-10-09

Screen sounder

 #50
20140233767
2014-08-21

Condenser microphone and manufacturing method thereof

 #51
20130039497
2013-02-14

System and method for using endpoints to provide sound monitoring

 #52
20130028458
2013-01-31

Speaker apparatus and audio output method

 #53
20120169185
2012-07-05

Actuator

 #54
20100192693
2010-08-05

ACOUSTIC TRANSDUCER ASSEMBLY

 #55
20090245027
2009-10-01

Slotted cylinder acoustic transducer

 #56
20090208045
2009-08-20

Water-resistant hearing device

 #57
20090136077
2009-05-28

Speaker apparatus and method for driving speaker

 #58
20080025533
2008-01-31

Loudspeaker

 #59
20070165886
2007-07-19

Louderspeaker

 #60
20070058827
2007-03-15

Loudspeaker

 #61
20050279566
2005-12-22

Loudspeaker

 #62
20050269906
2005-12-08

Electro-active actuator

 #63
17969744
2025-03-18

Jig for assembly of segments into a ring geometry

 #64
14510908
2016-07-26

Magnetostrictive parametric transducer

 #65
14278032
2017-01-10

Wearable alert device having selectable alert volume and method of operating same