ClassID:

220530

H03H9/0211 - CPC Classification

Classification description:

Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators; Details of bulk acoustic wave devices; Means for compensation or elimination of undesirable effects of reflections

Recent Application in this class:
#1
20260066869
2026-03-05

STRUCTURES, ACOUSTIC DEVICES AND SYSTEMS

#2
20260039271
2026-02-05

STRUCTURES, DEVICES, ACOUSTIC WAVE RESONATORS, AND SYSTEMS

#3
20260039270
2026-02-05

ACOUSTIC WAVE DEVICE

#4
20260005673
2026-01-01

BULK ACOUSTIC WAVE DEVICE WITH CAPACITOR

#5
20250392282
2025-12-25

BULK ACOUSTIC WAVE RESONATOR, PATTERNED LAYER STRUCTURES, DEVICES AND SYSTEMS

#6
20250364967
2025-11-27

METHOD OF MAKING A PIEZOELECTRIC DEVICE

#7
20250357909
2025-11-20

ACOUSTIC DEVICES INCORPORATING MULTILAYER VAN DER WAALS MATERIAL

#8
20250350257
2025-11-13

DEVICES AND METHODS RELATED TO GRADIENT RAISED FRAMES IN FILM BULK ACOUSTIC RESONATORS

#9
20250279764
2025-09-04

LOW LOSS TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATORS AND FILTERS

#10
20250266802
2025-08-21

SYSTEMS, ACOUSTIC WAVE STRUCTURES, AND DEVICES

#11
20250247075
2025-07-31

VIBRATOR

#12
20250247068
2025-07-31

ACOUSTIC REFLECTOR AND RESONATOR STRUCTURES, DEVICES AND SYSTEMS

#13
20250211190
2025-06-26

ACOUSTIC WAVE DEVICE WITH OVERTONE MODE

#14
20250175138
2025-05-29

STRUCTURE FOR PENETRATING ACOUSTIC BARRIER IN A BROADBAND FREQUENCY RANGE

#15
20250088168
2025-03-13

ACOUSTIC WAVE DEVICE WITH LAYER STRUCTURES, DEVICES AND SYSTEMS

#16
20250023542
2025-01-16

DOPED ACOUSTIC WAVE RESONATORS, STRUCTURES, DEVICES AND SYSTEMS

#17
20250023541
2025-01-16

ACOUSTIC STRUCTURES, DEVICES, FILTERS AND SYSTEMS

#18
20250023538
2025-01-16

BULK ACOUSTIC WAVE RESONATORS HAVING CONVEX SURFACES, AND METHODS OF FORMING THE SAME

#19
20240421793
2024-12-19

Methods related to gradient raised frames in film bulk acoustic resonators

#20
20240413803
2024-12-12

ACOUSTIC RESONATOR SOLIDLY MOUNTED ON A HIGH ACOUSTIC VELOCITY SUBSTRATE

#21
20240396523
2024-11-28

BULK ACOUSTIC WAVE RESONANCE STRUCTURE AND PREPARATION METHOD THEREFOR, AND ACOUSTIC WAVE DEVICE

#22
20240356531
2024-10-24

FILTER WITH BULK ACOUSTIC WAVE RESONATOR IN PARALLEL WITH CAPACITOR

#23
20240356530
2024-10-24

BULK ACOUSTIC WAVE COMPONENT WITH CIRCUIT ELEMENT INCLUDING CONDUCTIVE MATERIAL BURIED IN DIELECTRIC

#24
20240356529
2024-10-24

BULK ACOUSTIC WAVE DEVICE STRUCTURE WITH METAL-INSULATOR-METAL CAPACITOR

#25
20240356515
2024-10-24

LATERALLY EXCITED BULK WAVE DEVICE WITH ACOUSTIC MIRROR

#26
20240258982
2024-08-01

METHOD FOR MANUFACTURING ACOUSTIC DEVICES WITH IMPROVED PERFORMANCE

#27
20240243719
2024-07-18

TEMPERATURE COMPENSATING ACOUSTIC WAVE STRUCTURES, DEVICES AND SYSTEMS

#28
20240235524
2024-07-11

ACOUSTIC WAVE ELEMENT, ACOUSTIC WAVE FILTER DEVICE, AND MULTIPLEXER

#29
20240195381
2024-06-13

ACOUSTIC FILTERS WITH IMPROVED RETURN LOSS

#30
20240146281
2024-05-02

BULK ACOUSTIC WAVE RESONATOR WITH PATTERNED LAYER STRUCTURES, DEVICES AND SYSTEMS

#31
20240146279
2024-05-02

ACOUSTIC WAVE DEVICE

#32
20240137003
2024-04-25

ACOUSTIC WAVE ELEMENT, ACOUSTIC WAVE FILTER DEVICE, AND MULTIPLEXER

#33
20240136998
2024-04-25

MASS LOADED BULK ACOUSTIC WAVE RESONATOR STRUCTURES, DEVICES AND SYSTEMS

#34
20240106411
2024-03-28

ACOUSTIC DEVICES, STRUCTURES AND SYSTEMS

#35
20240097644
2024-03-21

SYSTEMS, STRUCTURES, ACOUSTIC WAVE RESONATORS AND DEVICES TO SENSE A TARGET VARIABLE

#36
20240080009
2024-03-07

PIEZOELECTRIC BULK WAVE DEVICE

#37
20240039510
2024-02-01

ACOUSTIC WAVE DEVICES WITH RESONANCE-TUNED LAYER STACK AND METHOD OF MANUFACTURE

#38
20230396229
2023-12-07

Bulk acoustic wave resonators having convex surfaces, and methods of forming the same

#39
20230378929
2023-11-23

Multiplexer with floating raised frame bulk acoustic wave device

#40
20230308073
2023-09-28

Packaging structure and method of acoustic device

#41
20230299735
2023-09-21

Bulk acoustic wave (BAW) resonator structures, devices and systems

#42
20230261637
2023-08-17

Recess frame structure for reduction of spurious signals in a bulk acoustic wave resonator

#43
20230216476
2023-07-06

BULK ACOUSTIC WAVE (BAW) RESONATOR, PATTERNED LAYER STRUCTURES, DEVICES AND SYSTEMS

#44
20230216470
2023-07-06

BULK-ACOUSTIC WAVE RESONATOR

#45
20230208382
2023-06-29

ACOUSTIC WAVE DEVICE

#46
20230155566
2023-05-18

ACOUSTIC WAVE DEVICE

#47
20230155565
2023-05-18

ACOUSTIC WAVE DEVICE

#48
20230143523
2023-05-11

ACOUSTIC WAVE DEVICE

#49
20230121844
2023-04-20

Laterally excited bulk wave device with acoustic mirror

#50
20230115689
2023-04-13

STAIR STEP FRAME STRUCTURES IN PIEZOELECTRIC RESONATORS

#51
20230107820
2023-04-06

ASSEMBLY WITH PARTIALLY EMBEDDED INTERDIGITAL TRANSDUCER ELECTRODE

#52
20230107728
2023-04-06

STACKED ACOUSTIC WAVE DEVICE ASSEMBLY

#53
20230107416
2023-04-06

ACOUSTIC WAVE DEVICE

#54
20230105034
2023-04-06

ASSEMBLY WITH PIEZOELECTRIC LAYER WITH EMBEDDED INTERDIGITAL TRANSDUCER ELECTRODE

#55
20230103956
2023-04-06

STACKED SINGLE MIRROR ACOUSTIC WAVE DEVICE AND DOUBLE MIRROR ACOUSTIC WAVE DEVICE

#56
20230063980
2023-03-02

Solidly mounted resonator having electromagnetic shielding structure, and manufacturing process

#57
20230006635
2023-01-05

ACOUSTIC RESONATOR

#58
20220416744
2022-12-29

Method for manufacturing acoustic devices with improved performance

#59
20220407498
2022-12-22

Film bulk acoustic resonators in thin LN-LT layers

#60
20220393661
2022-12-08

Two-stage lateral bulk acoustic wave filter with capacitive coupling of counter electrode

#61
20220352873
2022-11-03

LOW LOSS TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATORS AND FILTERS

#62
20220321078
2022-10-06

SOLID REFLECTION-TYPE BULK ACOUSTIC RESONATOR AND PREPARATION METHOD THEREOF

#63
20220278670
2022-09-01

Small transversely-excited film bulk acoustic resonators with enhanced Q-factor

#64
20220263495
2022-08-18

Acoustic wave device with overtone mode

#65
20220239279
2022-07-28

Film bulk acoustic sensors using thin LN-LT layer

#66
20220224305
2022-07-14

ACOUSTIC WAVE DEVICE

#67
20220216845
2022-07-07

Acoustic wave device

#68
20220158605
2022-05-19

Bulk acoustic wave resonator with slit

#69
20220140811
2022-05-05

BULK ACOUSTIC WAVE RESONATOR

#70
20220140806
2022-05-05

STRUCTURES, ACOUSTIC WAVE RESONATORS, DEVICES AND SYSTEMS

#71
20220140805
2022-05-05

Temperature compensating bulk acoustic wave (BAW) resonator structures, devices and systems

#72
20220140804
2022-05-05

Mass loaded bulk acoustic wave (BAW) resonator structures, devices, and systems

#73
20220140803
2022-05-05

Bulk acoustic wave (BAW) resonator with patterned layer structures, devices and systems

#74
20220123729
2022-04-21

Acoustic devices structures, filters and systems

#75
20220123725
2022-04-21

Bulk acoustic wave (BAW) reflector and resonator structures, devices and systems

#76
20220123719
2022-04-21

Acoustic devices with layer structures, devices and systems

#77
20220123718
2022-04-21

Doped acoustic wave resonator structures, devices and systems

#78
20220123710
2022-04-21

Bulk acoustic wave (BAW) resonator structures, devices, and systems

#79
20220123709
2022-04-21

Acoustic device structures, devices and systems

#80
20220060165
2022-02-24

Bulk acoustic wave resonator with a heatsink region and electrical insulator region

#81
20220038071
2022-02-03

Acoustic wave device, filter, and multiplexer

#82
20220014171
2022-01-13

Longitudinally coupled resonator acoustic wave filter and filter device

#83
20220014166
2022-01-13

Temperature compensated bulk acoustic wave device by neutral stress plane engineering through double sided silicon substrate integration

#84
20210408996
2021-12-30

Two-stage lateral bulk acoustic wave filter

#85
20210391846
2021-12-16

Small transversely-excited film bulk acoustic resonators with enhanced Q-factor

#86
20210384887
2021-12-09

Bulk acoustic wave resonators employing materials with piezoelectric and negative piezoelectric coefficients

#87
20210359663
2021-11-18

Bulk acoustic wave resonator, manufacturing method of the same, and filter

#88
20210359659
2021-11-18

Loaded series resonators for adjusting frequency response of acoustic wave resonators

#89
20210351759
2021-11-11

Structures, acoustic wave resonators, devices and systems to sense a target variable

#90
20210351758
2021-11-11

Acoustic wave device

#91
20210336604
2021-10-28

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

#92
20210328574
2021-10-21

Small transversely-excited film bulk acoustic resonators with enhanced Q-factor

#93
20210297053
2021-09-23

Wave control apparatus using elastic modulus change of thermoresponsive material

#94
20210288627
2021-09-16

POLARITY PATTERNED PIEZOELECTRIC FILM

#95
20210265974
2021-08-26

Film bulk acoustic sensors using thin LN-LT layer

#96
20210250014
2021-08-12

Resonance apparatus for processing electrical loss using conductive material and method for manufacturing the same

#97
20210167753
2021-06-03

Laterally excited bulk wave device with acoustic mirror

#98
20210119604
2021-04-22

Film bulk acoustic resonators in thin LN-LT layers

#99
20210111702
2021-04-15

Bulk acoustic resonator structures with improved edge frames

#100
20210111699
2021-04-15

Bulk acoustic wave resonator with multilayer base

#101
20210111693
2021-04-15

Composite piezoelectric film and bulk acoustic resonator incorporating same

#102
20210111692
2021-04-15

Multiplexer with floating raised frame bulk acoustic wave device

#103
20210083643
2021-03-18

Gradient raised frames n film bulk acoustic resonators

#104
20210075392
2021-03-11

Loaded series resonators for adjusting frequency response of acoustic wave resonators

#105
20210058062
2021-02-25

Film bulk acoustic resonators in thin LN-LT layers

#106
20210036678
2021-02-04

Structures, acoustic wave resonators, devices and systems to sense a target variable, including as a non-limiting example corona viruses

#107
20210028765
2021-01-28

Bulk acoustic wave/film bulk acoustic wave resonator and filter for wide bandwidth applications

#108
20210006223
2021-01-07

Acoustic wave device

#109
20200395911
2020-12-17

Bulk acoustic wave device with floating raised frame

#110
20200382091
2020-12-03

Bulk acoustic wave resonators having convex surfaces, and methods of forming the same

#111
20200373901
2020-11-26

Film bulk acoustic resonator including recessed frame with scattering sides

#112
20200328727
2020-10-15

Acoustic wave device

#113
20200304094
2020-09-24

Acoustic wave device

#114
20200274521
2020-08-27

Resonance apparatus for processing electrical loss using conductive material and method for manufacturing the same

#115
20200244245
2020-07-30

Two-stage lateral bulk acoustic wave filter

#116
20200083861
2020-03-12

Recess frame structure for a bulk acoustic wave resonator

#117
20200083860
2020-03-12

Two-stage lateral bulk acoustic wave filter

#118
20200052674
2020-02-13

Bulk-acoustic wave resonator

#119
20190372548
2019-12-05

Film bulk acoustic resonator

#120
20190372547
2019-12-05

Acoustic wave device, high frequency front-end circuit, and communication device

#121
20190326873
2019-10-24

Bulk acoustic wave resonators having low atomic weight metal electrodes

#122
20190253035
2019-08-15

Acoustic wave element and method for manufacturing same

#123
20190158057
2019-05-23

Acoustic resonator

#124
20190123711
2019-04-25

Acoustic management in integrated circuit using phononic bandgap structure

#125
20190103851
2019-04-04

Baw filter structure with internal electrostatic shielding

#126
20190097599
2019-03-28

Composite device

#127
20190089327
2019-03-21

Acoustic MEMs resonator and filter with fractal electrode and method for producing the same

#128
20190007020
2019-01-03

Bulk acoustic wave resonators having convex surfaces, and methods of forming the same

#129
20180191328
2018-07-05

Acoustic wave resonator and method for manufacturing the same

#130
20180175821
2018-06-21

Polarity patterned piezoelectric film

#131
20180083182
2018-03-22

Bulk acoustic wave resonator

#132
20180076378
2018-03-15

Method for manufacturing resonance apparatus

#133
20180076377
2018-03-15

Resonance apparatus for processing electrical loss using conductive material and method for manufacturing the same

#134
20180019730
2018-01-18

Radio-frequency front-end circuit and communication device

#135
20170366160
2017-12-21

Elastic wave device and manufacturing method therefor

#136
20170294893
2017-10-12

Resonance structure of bulk acoustic wave resonator

#137
20170063334
2017-03-02

BAW device and method of manufacturing BAW device

#138
20150381144
2015-12-31

Bulk acoustic resonator comprising aluminum scandium nitride

#139
20150084719
2015-03-26

Bulk wave resonator having an aluminum nitride film containing scandium and ScAlN protective layer

#140
20140225682
2014-08-14

Acoustic resonator having temperature compensation

#141
20140070671
2014-03-13

Resonance apparatus for processing electrical loss using conductive material and method for manufacturing the same

#142
20130335169
2013-12-19

Optimal acoustic impedance materials for polished substrate coating to suppress passband ripple in BAW resonators and filters

#143
20130181579
2013-07-18

Bulk acoustic wave resonator

#144
20130176086
2013-07-11

Double bulk acoustic resonator comprising aluminum scandium nitride

#145
20130038408
2013-02-14

Bulk acoustic wave resonator device comprising a bridge in an acoustic reflector

#146
20130033340
2013-02-07

Bulk acoustic wave resonator

#147
20120299664
2012-11-29

Filter and duplexer

#148
20120293278
2012-11-22

STACKED BULK ACOUSTIC RESONATOR COMPRISING DISTRIBUTED BRAGG REFLECTOR

#149
20120218059
2012-08-30

Stacked bulk acoustic resonator comprising a bridge and an acoustic reflector along a perimeter of the resonator

#150
20120218058
2012-08-30

Coupled resonator filter comprising a bridge and frame elements

#151
20100327705
2010-12-30

Piezoelectric resonator

#152
20100164325
2010-07-01

Elastic wave device and electronic component

#153
20100096358
2010-04-22

Method of manufacturing a ladder filter

#154
20100013573
2010-01-21

Piezoelectric thin-film filter

#155
20090267459
2009-10-29

COMPOSITE MATERIAL VIBRATOR

#156
20090153268
2009-06-18

Thin-film bulk-acoustic wave (BAW) resonators

#157
20090142480
2009-06-04

Optimal acoustic impedance materials for polished substrate coating to suppress passband ripple in BAW resonators and filters

#158
20090102319
2009-04-23

Acoustic resonator and filter

#159
20080284543
2008-11-20

Piezoelectric thin-film resonator and filter

#160
20080174389
2008-07-24

Piezoelectric resonator and piezoelectric thin-film filter

#161
20080129417
2008-06-05

Ladder type filter

#162
20070001781
2007-01-04

Piezoelectric resonator, method of manufacturing piezoelectric resonator, and filter, duplexer, and communication device using piezoelectric resonator

#163
20060170519
2006-08-03

BAW resonator

#164
20060043507
2006-03-02

Bulk acoustic wave resonator with means for suppression of pass-band ripple in bulk acoustic wave filters

#165
20050140465
2005-06-30

Noise suppression method for wave filter

#166
20050099245
2005-05-12

Piezoelectric resonator, method of manufacturing piezoelectric resonator, and filter, duplexer, and communication device using piezoelectric resonator

#167
20050057117
2005-03-17

Piezoelectric resonator, filter, and duplexer

#168
16932719
2020-12-08

Film bulk acoustic resonators in thin LN-LT layers

#169
16875242
2021-10-12

Tunable BAW resonator with ion-conductible structure

#170
13649025
2016-05-10

Microresonator electrode design