H03H9/50 - CPC Classification Index

ClassID:

220771 ⎘

H03H9/50 - CPC Classification

Classification description:

Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators; Filters; Coupling means therefor Mechanical coupling means

Sub-classes:

H03H9/505 » {for micro-electro-mechanical filters} 35

Recent Application in this class:

20240113693

2024-04-04

RECONFIGURABLE ACOUSTIC WAVE RESONATORS AND FILTERS

20230223926

2023-07-13

BULK ACOUSTIC WAVE RESONATORS WITH TUNABLE ELECTROMECHANICAL COUPLING

20210336314

2021-10-28

Method of making a ceramic resonator RF filter, an RF module and a wireless mobile device by forming stacked rows of ceramic resonators connected to a printed circuit board

20200052357

2020-02-13

Stacked ceramic resonator filter connected by tabs to a printed circuit board and usable for forming an RF module and a wireless mobile device

20180097505

2018-04-05

Stacked ceramic resonator radio frequency filter for wireless communications

20180019729

2018-01-18

High-frequency filter, front-end circuit, and communication device

20110204996

2011-08-25

Acoustic coupling layer for coupled resonator filters and method of fabricating acoustic coupling layer

20110204995

2011-08-25

Acoustically coupled resonator filter with impedance transformation ratio controlled by resonant frequency difference between two coupled resonators