Patents-Review.com
ClassID:

220785 ⎘

H03H9/581 - CPC Classification

Classification description:

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

Recent Application in this class:
#1
20250015784
2025-01-09

ACOUSTIC WAVE DEVICE

 #2
20240356519
2024-10-24

ACOUSTIC WAVE DEVICE WITH CERAMIC SUBSTRATE

 #3
20240322793
2024-09-26

ACOUSTIC WAVE DEVICE AND COMPOSITE FILTER DEVICE

 #4
20240283429
2024-08-22

FILTER DEVICE

 #5
20240120898
2024-04-11

BULK FILTER

 #6
20240113693
2024-04-04

RECONFIGURABLE ACOUSTIC WAVE RESONATORS AND FILTERS

 #7
20240039501
2024-02-01

BAND-PASS FILTER CIRCUIT AND MULTIPLEXER

 #8
20220385275
2022-12-01

Acoustic wave resonator RF filter circuit and system

 #9
20220385274
2022-12-01

Acoustic wave resonator RF filter circuit and system

 #10
20200162053
2020-05-21

Acoustic wave device with ceramic substrate

 #11
20190363243
2019-11-28

Aluminum nitride film, piezoelectric device, resonator, filter, and multiplexer

 #12
20190253038
2019-08-15

5G n79 Wi-Fi acoustic triplexer circuit

 #13
20190229705
2019-07-25

FBAR devices having multiple epitaxial layers stacked on a same substrate

 #14
20180278228
2018-09-27

Method for fabricating RF resonators and filters

 #15
20180278227
2018-09-27

Method for fabricating RF resonators and filters

 #16
20170370962
2017-12-28

Piezoelectric transducer

 #17
20150244347
2015-08-27

Bulk acoustic wave resonator having doped piezoelectric layer

 #18
20080252398
2008-10-16

Bulk acoustic wave (BAW) filter having reduced second harmonic generation and method of reducing second harmonic generation in a BAW filter

 #19
20050030127
2005-02-10

Filter system comprising a bulk acoustic wave resonator

 #20
20050012568
2005-01-20

BAW resonator having piezoelectric layers oriented in opposed directions