ClassID:

220780

H03H9/562 - CPC Classification

Classification description:

Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators; Filters comprising resonators of piezo-electric or electrostrictive material; Monolithic crystal filters comprising a ceramic piezoelectric layer

Recent Application in this class:
#1
20260058640
2026-02-26

5.5 GHz Wi-Fi 5G COEXISTENCE ACOUSTIC WAVE RESONATOR RF FILTER CIRCUIT

#2
20250364966
2025-11-27

PIEZOELECTRIC MATERIALS, DEVICES AND METHODS OF FABRICATING SAID DEVICES

#3
20250357907
2025-11-20

TUNING ACOUSTIC RESONATORS WITH BACK-SIDE COATING

#4
20250309863
2025-10-02

MULTIPLE ELECTROMECHANICAL COUPLING COEFFICIENTS ON SAME WAFER

#5
20250275480
2025-08-28

ACOUSTIC WAVE DEVICE

#6
20250274100
2025-08-28

METHODS OF FORMING PIEZOELECTRIC LAYERS HAVING ALTERNATING POLARIZATIONS AND RELATED BULK ACOUSTIC WAVE FILTER DEVICES

#7
20250260388
2025-08-14

ACOUSTIC WAVE DEVICE

#8
20250219610
2025-07-03

STRAINED PIEZOELECTRIC DEVICES FOR RADIOFREQUENCY RESONATORS AND FABRICATION METHODS THEREOF

#9
20250211203
2025-06-26

FUNDAMENTAL TONE MITIGATION FOR SECOND OVERTONE BULK ACOUSTIC WAVE RESONATOR

#10
20250183876
2025-06-05

ACOUSTIC WAVE DEVICE

#11
20250158589
2025-05-15

ACOUSTIC WAVE DEVICE INCLUDING ION IMPLANTED PIEZOELECTRIC LAYER

#12
20250150053
2025-05-08

SOLIDLY-MOUNTED TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATORS AND FILTERS

#13
20250105820
2025-03-27

BRAGG STACK STRUCTURE FOR SPURIOUS MODE SUPPRESSION IN SOLIDLY-MOUNTED ACOUSTIC RESONATOR

#14
20250105816
2025-03-27

SOLIDLY-MOUNTED TRANSVERSELY-EXCITED FILM BULK ACOUSTIC DEVICE

#15
20250096769
2025-03-20

TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR WITH BURIED OXIDE STRIP ACOUSTIC CONFINEMENT STRUCTURES

#16
20250088167
2025-03-13

TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR WITH A CAVITY HAVING ROUND END ZONES

#17
20250070753
2025-02-27

FILTERS USING TRANSVERSLY-EXCITED FILM BULK ACOUSTIC RESONATORS WITH FREQUENCY-SETTING DIELECTRIC LAYERS

#18
20250070752
2025-02-27

CIRCUITS, DEVICES AND METHODS FOR HARMONIC CONTROL

#19
20250070750
2025-02-27

ACOUSTIC WAVE DEVICE AND FILTER APPARATUS

#20
20250038730
2025-01-30

ACOUSTIC WAVE DEVICE

#21
20250023554
2025-01-16

ACOUSTIC WAVE DEVICE

#22
20250023553
2025-01-16

ACOUSTIC WAVE DEVICE

#23
20250023552
2025-01-16

BULK ACOUSTIC WAVE FILTERS WITH DIFFERENTLY DOPED ALUMINUM NITRIDE RESONATORS

#24
20250023539
2025-01-16

FILTER USING TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATORS WITH DIVIDED FREQUENCY-SETTING DIELECTRIC LAYERS

#25
20250015777
2025-01-09

ACOUSTIC WAVE DEVICE AND FILTER DEVICE

#26
20240396526
2024-11-28

TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR WITH A BACK-SIDE DIELECTRIC LAYER

#27
20240388273
2024-11-21

ALUMINUM NITRIDE DOPANT SCHEME FOR BULK ACOUSTIC WAVE DEVICES

#28
20240380376
2024-11-14

TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR

#29
20240372519
2024-11-07

METHOD FOR FABRICATING FILM BULK ACOUSTIC RESONATOR (FBAR), FBAR, AND FILTER

#30
20240364294
2024-10-31

ACOUSTIC WAVE DEVICE AND FILTER DEVICE

#31
20240275360
2024-08-15

FILTER DEVICE

#32
20240195387
2024-06-13

FILTER ELEMENT AND FILTER DEVICE

#33
20240195377
2024-06-13

METHOD FOR MAKING A WITH BULK ACOUSTIC WAVE FILTER

#34
20240186984
2024-06-06

Transversely-excited film bulk acoustic resonator with periodic etched holes

#35
20240186983
2024-06-06

XBAR resonators with non-rectangular diaphragms

#36
20240113681
2024-04-04

Multi-port filter using transversely-excited film bulk acoustic resonators

#37
20240039506
2024-02-01

Solidly-mounted transversely-excited film bulk acoustic resonator

#38
20240022234
2024-01-18

Filters using transversly-excited film bulk acoustic resonators with frequency-setting dielectric layers

#39
20240022233
2024-01-18

Transversely-excited film bulk acoustic resonator

#40
20240022228
2024-01-18

Decoupled transversely-excited film bulk acoustic resonators

#41
20230344414
2023-10-26

Transversely-excited acoustic resonator with Z-cut lithium niobate plate

#42
20230344400
2023-10-26

Electronic device and formation method therefor

#43
20230327649
2023-10-12

5.5 GHz Wi-Fi 5G COEXISTENCE ACOUSTIC WAVE RESONATOR RF FILTER CIRCUIT

#44
20230318571
2023-10-05

COMPOSITE FILTER DEVICE

#45
20230318569
2023-10-05

Radio-frequency circuits and devices having harmonic suppression

#46
20230318564
2023-10-05

TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR WITH REDUCED SPURIOUS MODES

#47
20230291388
2023-09-14

Transversely-excited film bulk acoustic resonator with recessed rotated-Y-X cut lithium niobate

#48
20230275562
2023-08-31

ACOUSTIC WAVE DEVICE

#49
20230261631
2023-08-17

Acoustic wave device

#50
20230261630
2023-08-17

ACOUSTIC WAVE DEVICE

#51
20230261626
2023-08-17

TUNING ACOUSTIC RESONATORS WITH BACK-SIDE COATING

#52
20230216475
2023-07-06

ACOUSTIC WAVE DEVICE

#53
20230198500
2023-06-22

ACOUSTIC WAVE DEVICE

#54
20230113584
2023-04-13

METHOD FOR FORMING A PIEZOELECTRIC FILM

#55
20230112046
2023-04-13

Resonator shapes for bulk acoustic wave (BAW) devices

#56
20230099342
2023-03-30

Piston mode lamb wave resonators

#57
20230034164
2023-02-02

RF BAW RESONATOR FILTER ARCHITECTURE FOR 6.5GHZ WI-FI 6E COEXISTENCE AND OTHER ULTRA-WIDEBAND APPLICATIONS

#58
20230006632
2023-01-05

Transversely-excited film bulk acoustic resonators with piezoelectric diaphragm supported by piezoelectric substrate

#59
20220393666
2022-12-08

FILTER DEVICE

#60
20220385263
2022-12-01

Transversely-excited film bulk acoustic resonators with piezoelectric diaphragm supported by piezoelectric substrate

#61
20220376669
2022-11-24

Solidly-mounted transversely-excited film bulk acoustic device and method

#62
20220352869
2022-11-03

Transversely-excited film bulk acoustic resonator with buried oxide strip acoustic confinement structures

#63
20220352868
2022-11-03

Transversely-excited film bulk acoustic resonator with buried oxide strip acoustic confinement structures

#64
20220352867
2022-11-03

Transversely-excited film bulk acoustic resonator with oxide strip acoustic confinement structures

#65
20220352866
2022-11-03

RF BAW RESONATOR FILTER ARCHITECTURE FOR 6.5GHZ WI-FI 6E COEXISTENCE AND OTHER ULTRA-WIDEBAND APPLICATIONS

#66
20220345110
2022-10-27

5.5 GHz Wi-Fi 5G coexistence acoustic wave resonator RF filter circuit

#67
20220344576
2022-10-27

METHODS OF FORMING GROUP III PIEZOELECTRIC THIN FILMS VIA SPUTTERING

#68
20220321095
2022-10-06

ACOUSTIC WAVE DEVICE HAVING STACKED PIEZOELECTRIC LAYERS BETWEEN ELECTRODES

#69
20220286108
2022-09-08

ALUMINUM NITRIDE DOPANT SCHEME FOR BULK ACOUSTIC WAVE FILTERS

#70
20220278666
2022-09-01

Filter using transversely-excited film bulk acoustic resonators with divided frequency-setting dielectric layers

#71
20220271195
2022-08-25

PATTERNED SUBSTRATE, SEMICONDUCTOR DEVICE AND NANOTUBE STRUCTURE

#72
20220263490
2022-08-18

Symmetric transversely-excited film bulk acoustic resonators with reduced spurious modes

#73
20220231665
2022-07-21

5 and 6 GHz Wi-Fi coexistence acoustic wave resonator RF diplexer circuit

#74
20220231664
2022-07-21

Hybrid bulk acoustic wave filter

#75
20220231659
2022-07-21

Decoupled transversely-excited film bulk acoustic resonators

#76
20220216855
2022-07-07

Transversely-excited film bulk acoustic resonator with periodic etched holes

#77
20220216854
2022-07-07

Acoustic wave device

#78
20220216848
2022-07-07

Acoustic wave device

#79
20220216846
2022-07-07

ACOUSTIC WAVE DEVICE

#80
20220216844
2022-07-07

Acoustic wave device

#81
20220216842
2022-07-07

ACOUSTIC WAVE DEVICE AND FILTER DEVICE

#82
20220216392
2022-07-07

Acoustic wave device

#83
20220200573
2022-06-23

Filter using lithium niobate and lithium tantalate transversely-excited film bulk acoustic resonators

#84
20220190807
2022-06-16

Rotation in XY plane to suppress spurious modes in XBAR devices

#85
20220182038
2022-06-09

Transversely-excited film bulk acoustic resonator with etched conductor patterns

#86
20220158608
2022-05-19

Solidly-mounted transversely-excited film bulk acoustic resonator with diamond layers in Bragg reflector stack

#87
20220149809
2022-05-12

Transversely-excited film bulk acoustic resonator with low thermal impedance

#88
20220149808
2022-05-12

Transversely-excited film bulk acoustic resonator with low thermal impedance

#89
20220149807
2022-05-12

Transversely-excited film bulk acoustic resonator with low thermal impedance

#90
20220140226
2022-05-05

Piezoelectric composition, piezoelectric element, piezoelectric device, piezoelectric transformer, ultrasonic motor, ultrasonic wave-generating element, and filter element

#91
20220116019
2022-04-14

Transversely-excited film bulk acoustic resonators with piezoelectric diaphragm supported by piezoelectric substrate

#92
20220116010
2022-04-14

Solidly-mounted transversely-excited film bulk acoustic resonators and filters for 27 GHz communications bands

#93
20220103154
2022-03-31

Substrate processing and membrane release of transversely-excited film bulk acoustic resonator using a sacrificial tub

#94
20220094322
2022-03-24

ELECTRO-ACOUSTIC RESONATOR AND METHOD FOR MANUFACTURING THE SAME

#95
20220093683
2022-03-24

3D HETEROGENEOUS INTEGRATED CRYSTALLINE PIEZOELECTRIC BULK ACOUSTIC RESONATORS

#96
20220085795
2022-03-17

Tunable monolithic group III-nitride filter banks

#97
20220060170
2022-02-24

Solidly-mounted transversely-excited film bulk acoustic device

#98
20220052665
2022-02-17

RF BAW resonator filter architecture for 6.5GHz Wi-Fi 6E coexistence and other ultra-wideband applications

#99
20220014174
2022-01-13

Acoustic wave device

#100
20220014168
2022-01-13

Transversely-excited film bulk acoustic resonators with piezoelectric diaphragm supported by piezoelectric substrate

#101
20220014161
2022-01-13

Method for making transversely-excited film bulk acoustic resonators with piezoelectric diaphragm supported by piezoelectric substrate

#102
20210399718
2021-12-23

Filter using lithium niobate and lithium tantalate transversely-excited film bulk acoustic resonators

#103
20210399717
2021-12-23

Filter using lithium niobate and rotated lithium tantalate transversely-excited film bulk acoustic resonators

#104
20210399716
2021-12-23

Filter device, RF front-end device and wireless communication device

#105
20210399713
2021-12-23

BAW resonance device, filter device and RF front-end device

#106
20210391844
2021-12-16

Transversely-excited film bulk acoustic resonator

#107
20210384889
2021-12-09

Bandpass filter with frequency separation between shunt and series resonators set by dielectric layer thickness

#108
20210360837
2021-11-18

Filter with cover layer and shield layer

#109
20210344325
2021-11-04

Transversely-excited film bulk acoustic resonator with etched conductor patterns

#110
20210344317
2021-11-04

Transversely-excited film bulk acoustic resonator with etched conductor patterns

#111
20210328568
2021-10-21

Solidly-mounted transversely-excited film bulk acoustic resonator

#112
20210313953
2021-10-07

Transversely-excited film bulk acoustic resonator with reduced spurious modes

#113
20210313952
2021-10-07

Transversely-excited film bulk acoustic resonator with reduced spurious modes

#114
20210313951
2021-10-07

Transversely-excited film bulk acoustic resonator with reduced spurious modes

#115
20210297055
2021-09-23

Acoustic wave device and filter

#116
20210281238
2021-09-09

Transversely-excited film bulk acoustic resonator with a cavity having round end zones

#117
20210273632
2021-09-02

Solidly-mounted transversely-excited film bulk acoustic resonator with recessed interdigital transducer fingers using rotated y-x cut lithium niobate

#118
20210273626
2021-09-02

Transversely-excited film bulk acoustic resonator with reduced spurious modes

#119
20210273625
2021-09-02

Aluminum nitride dopant scheme for bulk acoustic wave filters

#120
20210265978
2021-08-26

Filters using transversly-excited film bulk acoustic resonators with frequency-setting dielectric layers

#121
20210257992
2021-08-19

Transversely-excited film bulk acoustic resonator with a bonding layer and an etch-stop layer

#122
20210257991
2021-08-19

Transversely-excited film bulk acoustic resonator with a back-side dielectric layer and an etch-stop layer

#123
20210257990
2021-08-19

Transversely-excited film bulk acoustic resonator with thermally conductive etch-stop layer

#124
20210234528
2021-07-29

Fifth-generation (5G)-focused piezoelectric resonators and filters

#125
20210184648
2021-06-17

Elastic wave device

#126
20210167756
2021-06-03

Transversely-excited film bulk acoustic resonator with periodic etched holes

#127
20210159874
2021-05-27

Acoustic resonators and filters that support fifth generation (5G) wireless communications standards

#128
20210143794
2021-05-13

Filter using transversely-excited film bulk acoustic resonators with multiple frequency setting layers

#129
20210111703
2021-04-15

Filter using transversely-excited film bulk acoustic resonators with two frequency setting layers

#130
20210105006
2021-04-08

Bulk acoustic wave filter co-package

#131
20210105005
2021-04-08

Method for forming multiple bulk acoustic wave filters on shared die

#132
20210105003
2021-04-08

XBAR resonators with non-rectangular diaphragms

#133
20210105002
2021-04-08

XBAR resonators with non-rectangular diaphragms

#134
20210099153
2021-04-01

Piston mode Lamb wave resonators

#135
20210091749
2021-03-25

Transversly-excited film bulk acoustic resonators and filters

#136
20210091745
2021-03-25

Transversely-excited film bulk acoustic filter using pitch to establish frequency separation between resonators

#137
20210083652
2021-03-18

Wide bandwidth temperature-compensated transversely-excited film bulk acoustic resonator

#138
20210075400
2021-03-11

Harmonic suppression in bulk acoustic wave duplexer

#139
20210075393
2021-03-11

Symmetric transversely-excited film bulk acoustic resonators with reduced spurious modes

#140
20210067133
2021-03-04

Multi-port filter using transversely-excited film bulk acoustic resonators

#141
20210058056
2021-02-25

Filter using transversely-excited film bulk acoustic resonators with divided frequency-setting dielectric layers

#142
20210044278
2021-02-11

Bulk acoustic wave filters on shared die

#143
20210044272
2021-02-11

Filter using transversely-excited film bulk acoustic resonators with divided frequency-setting dielectric layers

#144
20210028757
2021-01-28

Transversely-excited film bulk acoustic resonator with reduced spurious modes

#145
20210028756
2021-01-28

Transversely-excited film bulk acoustic resonator and filter with a uniform-thickness dielectric overlayer

#146
20210013861
2021-01-14

TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR WITH ETCHED CONDUCTOR PATTERNS

#147
20210013860
2021-01-14

Transversely-excited film bulk acoustic resonator with a cavity having a curved perimeter

#148
20210013859
2021-01-14

TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR WITH ETCHED CONDUCTOR PATTERNS

#149
20200366265
2020-11-19

Bulk acoustic resonator and filter including the same

#150
20200358426
2020-11-12

Solidly-mounted transversely excited film bulk acoustic resonator using rotated Y-X cut lithium niobate

#151
20200350891
2020-11-05

Transversely-excited film bulk acoustic resonator with etch-stop layer

#152
20200350890
2020-11-05

Transversely-excited film bulk acoustic resonator with periodic etched holes

#153
20200343877
2020-10-29

Filter using transversely-excited film bulk acoustic resonators with multiple frequency setting layers

#154
20200336126
2020-10-22

Transversely-excited film bulk acoustic resonator

#155
20200336125
2020-10-22

Resonator shapes for bulk acoustic wave (BAW) devices

#156
20200313649
2020-10-01

Film bulk acoustic resonator (FBAR) devices for high frequency RF filters

#157
20200304091
2020-09-24

Solidly-mounted transversely-excited film bulk acoustic resonator with diamond layers in Bragg reflector stack

#158
20200287521
2020-09-10

Rotation in XY plane to suppress spurious modes in XBAR devices

#159
20200235719
2020-07-23

XBAR resonators with non-rectangular diaphragms

#160
20200228096
2020-07-16

5.5 GHz Wi-Fi 5G coexistence acoustic wave resonator RF filter circuit

#161
20200204157
2020-06-25

FRONT END MODULE

#162
20200177162
2020-06-04

Transversely excited film bulk acoustic resonator using rotated Y-X cut lithium niobate

#163
20200169241
2020-05-28

Solidly-mounted transversely-excited film bulk acoustic resonator

#164
20200119715
2020-04-16

Method and structure for single crystal acoustic resonator devices using thermal recrystallization

#165
20200119087
2020-04-16

Techniques for monolithic co-integration of polycrystalline thin-film bulk acoustic resonator devices and monocrystalline III-N semiconductor transistor devices

#166
20200112298
2020-04-09

4.5G 3.55-3.7 GHz band bulk acoustic wave resonator RF filter circuit

#167
20200111949
2020-04-09

Methods of forming doped crystalline piezoelectric thin films via MOCVD and related doped crystalline piezoelectric thin films

#168
20200091893
2020-03-19

Bandpass filter with frequency separation between shunt and series resonators set by dielectric layer thickness

#169
20200036358
2020-01-30

Acoustic wave filter device

#170
20200013948
2020-01-09

Methods of forming group III piezoelectric thin films via sputtering

#171
20190386637
2019-12-19

Solidly-mounted transversely-excited film bulk acoustic resonator

#172
20190386636
2019-12-19

Transversely-excited film bulk acoustic resonator

#173
20190386635
2019-12-19

Transversely-excited film bulk acoustic resonator

#174
20190379344
2019-12-12

FILM BULK ACOUSTIC WAVE RESONATORS AND FABRICATION METHODS THEREOF

#175
20190372543
2019-12-05

Acoustic filter with packaging-defined boundary conditions and method for producing the same

#176
20190363694
2019-11-28

Bulk acoustic wave (BAW) and passive-on-glass (POG) filter co-integration

#177
20190363693
2019-11-28

Elastic wave device

#178
20190356300
2019-11-21

Acoustic wave resonator and electronic filter circuit

#179
20190319604
2019-10-17

Piezoelectric thin film and bulk acoustic wave filter

#180
20190305039
2019-10-03

Epitaxial AIN/cREO structure for RF filter applications

#181
20190253035
2019-08-15

Acoustic wave element and method for manufacturing same

#182
20190173452
2019-06-06

Film bulk acoustic resonator (FBAR) RF filter having epitaxial layers

#183
20190089325
2019-03-21

Piezoelectric layer and piezoelectric device comprising the piezoelectric layer

#184
20190074813
2019-03-07

Piston mode lamb wave resonators

#185
20190020327
2019-01-17

5.2 GHz Wi-Fi coexistence acoustic wave resonator RF filter circuit

#186
20190007021
2019-01-03

Piezoelectric thin film resonator and fabrication method of the same, filter, and multiplexer

#187
20180358406
2018-12-13

Techniques for integrating three-dimensional islands for radio frequency (RF) circuits

#188
20180342999
2018-11-29

Method and structure for single crystal acoustic resonator devices using thermal recrystallization

#189
20180337654
2018-11-22

Surface acoustic wave device having a piezoelectric layer on a quartz substrate and methods of manufacturing thereof

#190
20180331156
2018-11-15

Integrated RF frontend structures

#191
20180323767
2018-11-08

Film bulk acoustic resonator (FBAR) devices for high frequency RF filters

#192
20180309422
2018-10-25

5.2 GHz Wi-Fi acoustic wave resonator RF filter circuit

#193
20180278228
2018-09-27

Method for fabricating RF resonators and filters

#194
20180275485
2018-09-27

Method of fabrication for single crystal piezoelectric RF resonators and filters

#195
20180175826
2018-06-21

Bulk acoustic wave resonator with multilayer piezoelectric structure

#196
20180062608
2018-03-01

Bulk acoustic resonator and filter including the same

#197
20170353171
2017-12-07

Temperature compensated oscillation circuit, oscillator, electronic apparatus, vehicle, and method of manufacturing oscillator

#198
20170222622
2017-08-03

Surface acoustic wave device having a piezoelectric layer on a quartz substrate and methods of manufacturing thereof

#199
20170187350
2017-06-29

Elastic wave device having a cut in a busbar electrode layer

#200
20170134003
2017-05-11

Elastic wave device

#201
20160261249
2016-09-08

Splitter

#202
20150256146
2015-09-10

Resonator filter having a recess in insulating material of a multi-layered coupling structure

#203
20150244346
2015-08-27

Bulk acoustic wave resonators having doped piezoelectric material and frame elements

#204
20150054597
2015-02-26

Elastic wave filter device and duplexer

#205
20120086523
2012-04-12

Method of manufacturing laterally coupled BAW thin films

#206
20110121683
2011-05-26

Piezoelectric resonator operating in thickness shear mode

#207
20110006638
2011-01-13

Multidomain acoustic wave devices

#208
20080290759
2008-11-27

Piezoelectric vibrator

#209
20080143457
2008-06-19

Process for making a FBAR bandpass filter

#210
20080055021
2008-03-06

Acoustic wave device, filter and duplexer

#211
20070210875
2007-09-13

Piezoelectric plate electric connection structure

#212
20070063623
2007-03-22

Multilayer ceramic substrate, method for manufacturing the same, and piezoelectric resonator component

#213
20060139121
2006-06-29

FBAR band pass filter, duplexer having the filter and methods for manufacturing the same

#214
20050248238
2005-11-10

Thin film piezoelectric resonator, thin film piezoelectric device, and manufacturing method thereof

#215
20050093397
2005-05-05

Method of producing thin film bulk acoustic resonator

#216
20050046519
2005-03-03

Film bulk acoustic resonator and method of producing the same

#217
20050035828
2005-02-17

Film bulk acoustic resonator (FBAR) device and method for producing the same

#218
20050012569
2005-01-20

Piezoelectric vibrator, filter using the same and its adjusting method

#219
17408120
2022-02-01

Decoupled transversely-excited film bulk acoustic resonators