H01P1/20354 - CPC Classification Index

ClassID:

213975 ⎘

H01P1/20354 - CPC Classification

Classification description:

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

Sub-classes:

H01P1/20363 » {Linear resonators} 79
H01P1/20372 » {Hairpin resonators} 53
H01P1/20381 » {Special shape resonators} 218

Recent Application in this class:

20240145893

2024-05-02

RADIO FREQUENCY FILTERS COVERED BY PRINTED CIRCUIT BOARDS

20190036191

2019-01-31

Methods of forming flipped RF filter components

20180102578

2018-04-12

Flipped RF filters and components

20150303542

2015-10-22

Tunable filter comprising a microstrip patch having symmetrical slots, asymmetrical feed lines and a plurality of diodes

20120169436

2012-07-05

Microwave filter

20120001703

2012-01-05

Electronic component

20110068883

2011-03-24

Microstrip filter

20100265013

2010-10-21

Miniaturized Band-Pass Filter

20100265012

2010-10-21

Stripline filter and manufacturing method thereof

#10

20100013577

2010-01-21

Bandpass filter, wireless communication module and wireless communication device

#11

20090167460

2009-07-02

Superconducting tunable filter

#12

20080278262

2008-11-13

Zig-zag array resonators for relatively high-power HTS applications