H03H7/253 - CPC Classification Index

ClassID:

220465 ⎘

H03H7/253 - CPC Classification

Classification description:

Multiple-port networks comprising only passive electrical elements as network components; Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable the element being a diode

Sub-classes:

H03H7/255 » {the element being a PIN diode} 17
H03H7/256 » {the element being a VARACTOR diode} 6

Recent Application in this class:

20220399642

2022-12-15

Gain variation compensation using temperature attenuator

20190348962

2019-11-14

Digital switched attenuator

20190123707

2019-04-25

Digital switched attenuator

20180241375

2018-08-23

VARIABLE ATTENUATOR

20180054178

2018-02-22

Digital switched attenuator

20080088392

2008-04-17

Attenuator

20070268096

2007-11-22

Attenuator

20070053136

2007-03-08

Diode switch and attenuator for reducing a bias current