H03H7/0169 - CPC Classification Index

ClassID:

220433 ⎘

H03H7/0169 - CPC Classification

Classification description:

Multiple-port networks comprising only passive electrical elements as network components; Frequency selective two-port networks; Electrical filters; Controlling thereof; Bandpass filters Intermediate frequency filters

Sub-classes:

H03H7/0176 » {witout magnetic core} 2
H03H7/0184 » {with ferromagnetic core} 2

Recent Application in this class:

20250293657

2025-09-18

FILTER DEVICE

20230231530

2023-07-20

MULTILAYER BAND-PASS FILTER

20210367576

2021-11-25

INDUCTORLESS INTERFERENCE CANCELLATION FILTER

20200203488

2020-06-25

Tunable capacitors including III-N multi-2DEG and 3DEG structures for tunable RF filters

20200076032

2020-03-05

Transmission-line filtering with enhanced frequency response

20200028230

2020-01-23

Tunable probe for high-performance cross-coupled RF filters

20160056845

2016-02-25

Low-cost receiver using integrated inductors

20150147991

2015-05-28

Low-cost receiver using integrated inductors

20150035622

2015-02-05

Interference rejection RF filters

#10

20150035612

2015-02-05

Calibration for a tunable RF filter structure

#11

20150002240

2015-01-01

Methods and apparatus for signal filtering

#12

20130171952

2013-07-04

Low-cost receiver using integrated inductors

#13

20110299634

2011-12-08

SAW-LESS RECEIVER WITH A FREQUENCY TRANSLATED BPF HAVING A NEGATIVE RESISTANCE

#14

20080057897

2008-03-06

RF filter adjustment based on LC variation

#15

20060208832

2006-09-21

Radio frequency inductive-capacitive filter circuit topology

#16

20060046679

2006-03-02

Flat intermediate if filter for tuners

#17

20050266823

2005-12-01

Receiver for an integrated heterodyne communication system including BAW-type resonators