H01P1/217 - CPC Classification Index

ClassID:

213999 ⎘

H01P1/217 - CPC Classification

Classification description:

Auxiliary devices; Frequency-selective devices, e.g. filters using ferromagnetic material the ferromagnetic material acting as a tuning element in resonators

Recent Application in this class:

20190089031

2019-03-21

Systems and devices for filtering electrical signals

20160118704

2016-04-28

Low-loss continuously tunable filter and resonator thereof

20160067915

2016-03-10

High frequency oscillator, high frequency welding system and method for controlling the frequency using said type of high frequency oscillator

20090034900

2009-02-05

Band-pass filter and method for making photonic crystal for the band-pass filter

20050007208

2005-01-13

Tunable circuit for tunable capacitor devices