Patents-Review.com
ClassID:

219629 ⎘

H03F2200/399 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A parallel resonance being added in shunt in the output circuit, e.g. base, gate, of an amplifier stage

Recent Application in this class:
#1
20250260370
2025-08-14

Cascode Amplifier Bias Circuits

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20240364269
2024-10-31

Source Switched Split LNA

 #3
20240348211
2024-10-17

Cascode amplifier bias circuits

 #4
20230387864
2023-11-30

Cascode amplifier bias circuits

 #5
20220368287
2022-11-17

Cascode amplifier bias circuits

 #6
20210336584
2021-10-28

Source switched split LNA

 #7
20210013841
2021-01-14

Cascode amplifier bias circuits

 #8
20200144967
2020-05-07

Source switched split LNA

 #9
20190341893
2019-11-07

RF power amplifier with frequency selective impedance matching network

 #10
20190263712
2019-08-29

Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers

 #11
20190172804
2019-06-06

Integrated passive device for RF power amplifier package

 #12
20190158031
2019-05-23

Cascode amplifier bias circuits

 #13
20190115881
2019-04-18

Power amplifying device

 #14
20180302039
2018-10-18

Source switched split LNA

 #15
20180205351
2018-07-19

Amplifier system for use as high sensitivity selective receiver without frequency conversion

 #16
20180205350
2018-07-19

Amplifier system for use as high sensitivity selective receiver without frequency conversion

 #17
20180175807
2018-06-21

LNA with programmable linearity

 #18
20180083578
2018-03-22

Cascode amplifier bias circuits

 #19
20180054222
2018-02-22

Digital variable capacitance circuit, resonant circuit, amplification circuit, and transmitter

 #20
20180026591
2018-01-25

Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion

 #21
20180026000
2018-01-25

Integrated passive device for RF power amplifier package

 #22
20170187337
2017-06-29

Advanced amplifier system for ultra-wide band RF communication

 #23
20170063405
2017-03-02

Digital variable capacitance circuit, resonant circuit, amplification circuit, and transmitter

 #24
20160248462
2016-08-25

Frequency tuning of narrowband low noise amplifiers

 #25
20150371770
2015-12-24

Broadband power amplifier having high efficiency

 #26
20150171900
2015-06-18

Radio-frequency transmitter and amplifier

 #27
20140248846
2014-09-04

Terrestrial broadcast wave reception-use antenna device and component of same

 #28
20140225671
2014-08-14

High efficiency power amplifier

 #29
20120139644
2012-06-07

Dual use transistor

 #30
20120007678
2012-01-12

Broadband transistor bias network

 #31
20110217940
2011-09-08

Radio-frequency transmitter and amplifier

 #32
20100259331
2010-10-14

High-linearity low noise amplifier

 #33
20100201346
2010-08-12

RF power detector

 #34
20100099368
2010-04-22

Monolithic FM-band transmit power amplifier for mobile cellular devices and method of operation thereof

 #35
20100019849
2010-01-28

RF pre-amplifiers and power amplifiers

 #36
20090189697
2009-07-30

Auto-tuning amplifier

 #37
20090184786
2009-07-23

Multi-segment primary and multi-turn secondary transformer for power amplifier systems

 #38
20090174477
2009-07-09

Multi-segment primary and multi-turn secondary transformer for power amplifier systems

 #39
20090039964
2009-02-12

Low-noise amplifier circuit and receiving system

 #40
20080042742
2008-02-21

Distortion Nulling for Single-Ended High Dynamic Range RF Amplifier

 #41
20080001650
2008-01-03

Controlling output current delivered by a transistor

 #42
20050100084
2005-05-12

System and method for signal amplification