Patents-Review.com
ClassID:

213972 ⎘

H01P1/20327 - CPC Classification

Classification description:

Auxiliary devices; Frequency-selective devices, e.g. filters; Filters for transverse electromagnetic waves; Strip line filters Electromagnetic interstage coupling

Sub-classes:
Recent Application in this class:
#1
20260011899
2026-01-08

FILTER

 #2
20240047388
2024-02-08

Channelized filter using semiconductor fabrication

 #3
20230230942
2023-07-20

Channelized filter using semiconductor fabrication

 #4
20220311405
2022-09-29

Composite electronic component

 #5
20220278059
2022-09-01

Channelized filter using semiconductor fabrication

 #6
20220020708
2022-01-20

Channelized filter using semiconductor fabrication

 #7
20210408651
2021-12-30

Tunable band-stop filter, method of driving the same and electronic device

 #8
20210296748
2021-09-23

Filter

 #9
20210091443
2021-03-25

Dual-substrate waveguide filter

 #10
20210057143
2021-02-25

Filter circuits

 #11
20200358159
2020-11-12

Cryogenic on-chip microwave filter for quantum devices

 #12
20200358158
2020-11-12

Radio frequency filter and radio frequency module

 #13
20200144689
2020-05-07

Band pass filter including microstrip transmission line

 #14
20200106148
2020-04-02

Band-pass filter

 #15
20200090078
2020-03-19

Cryogenic on-chip microwave filter for quantum devices

 #16
20200076032
2020-03-05

Transmission-line filtering with enhanced frequency response

 #17
20200007103
2020-01-02

Radio frequency filter and radio frequency module

 #18
20190246493
2019-08-08

Filter comprising printed circuit board and busbars

 #19
20190237839
2019-08-01

Multi-common port multiband filters

 #20
20190199313
2019-06-27

Band-pass filter

 #21
20180241109
2018-08-23

Multi-common port multiband filters

 #22
20180191045
2018-07-05

High-power filtering switch with low loss and high isolation based on dielectric resonator

 #23
20180115033
2018-04-26

Filter circuit and frequency switching method

 #24
20180062232
2018-03-01

Frequency tunable reflectionless bandstop filter using L-resonators

 #25
20180049314
2018-02-15

Filter comprising printed circuit board and busbars

 #26
20170365903
2017-12-21

Resonant unit and filter

 #27
20170272047
2017-09-21

Electronic component

 #28
20160365616
2016-12-15

Ground structures between resonators for distributed electromagnetic wave filters

 #29
20160087323
2016-03-24

Electromagnetic noise filter device and equivalent filter circuit thereof

 #30
20140340175
2014-11-20

Signal transmission device, filter, and inter-substrate communication device

 #31
20140159834
2014-06-12

RF planar filter having resonator segments connected by adjustable electrical links

 #32
20140035703
2014-02-06

Multiple-mode filter for radio frequency integrated circuits

 #33
20130271909
2013-10-17

Multi-pair differential lines printed circuit board common mode filter

 #34
20130141187
2013-06-06

Cross-coupled bandpass filter

 #35
20130063228
2013-03-14

Reconfigurable bandpass filter based on a planar combline filter comprising varactor diodes

 #36
20120229231
2012-09-13

Variable filter and communication apparatus

 #37
20120062342
2012-03-15

MULTI BAND-PASS FILTER

 #38
20120049981
2012-03-01

Signal transmission device, filter, and inter-substrate communication device

 #39
20120032760
2012-02-09

COMPACT PLANAR RESONATORS WITH Z-AXIS FOLDING

 #40
20110120628
2011-05-26

Method of fabricating a module, for millimeter wave multi-gigabit wireless systems

 #41
20110050365
2011-03-03

SIGNAL TRANSMISSION APPARATUS

 #42
20100244990
2010-09-30

Stripline filter

 #43
20100182104
2010-07-22

STRIPLINE FILTER

 #44
20100013577
2010-01-21

Bandpass filter, wireless communication module and wireless communication device

 #45
20090243760
2009-10-01

Second-order band-pass filter and wireless apparatus using the same

 #46
20090237183
2009-09-24

Low-pass filter

 #47
20090145646
2009-06-11

Electromagnetic bandgap structure and printed circuit board

 #48
20090128263
2009-05-21

Cavity resonator having a re-entrant stub on a printed circuit board with cut-out areas

 #49
20090121813
2009-05-14

Electronic component

 #50
20060250308
2006-11-09

Module, filter, and antenna technology for millimeter waves multi-gigabits wireless systems

 #51
18101852
2026-01-13

EBG-based electronic filter using multi-layer and multi-cell structure