Inventor · disambiguated record
Charles Forrest Campbell
Also filed as: CAMPBELL CHARLES · CAMPBELL CHARLES F · CAMPBELL CHARLES FORREST
22 granted patents·3 pending applications·50 citations·filing 1992–2025
92Inventor score
Files withQORVO US INC17TRIQUINT SEMICONDUCTOR INC4CAMPBELL CHARLES1RF MICRO DEVICES INC1TSERNG HUA-QUEN1
Top patents by PatentIndex Score
25 records- 0185US8988161B2Transformer for monolithic microwave integrated circuitsTRIQUINT SEMICONDUCTOR INC·Filed 2013·Granted Mar 24, 2015·8 cites·22 claims
- 0282US10903178B1Isolation network for multi-way power divider/combinersQORVO US INC·Filed 2019·Granted Jan 26, 2021·3 cites·20 claims
- 0381US11539108B1Reconfigurable quadrature couplerQORVO US INC·Filed 2021·Granted Dec 27, 2022·1 cites·20 claims
- 0480US11245427B1Frequency selective limiterQORVO US INC·Filed 2021·Granted Feb 8, 2022·1 cites·18 claims
- 0579US10396714B2Reconfigurable low-noise amplifier (LNA)QORVO US INC·Filed 2017·Granted Aug 27, 2019·3 cites·20 claims
- 0677US2024291454A1Power reconfigurable power amplifierQORVO US INC·Filed 2024·Application pending·0 cites
- 0776US8754496B2Field effect transistor having a plurality of field platesTSERNG HUA-QUEN·Filed 2009·Granted Jun 17, 2014·9 cites·20 claims
- 0875US11777187B2Reconfigurable quadrature couplerQORVO US INC·Filed 2022·Granted Oct 3, 2023·0 cites·20 claims
- 0974US8538368B1Dynamic power limiter circuitCAMPBELL CHARLES·Filed 2011·Granted Sep 17, 2013·5 cites·20 claims
- 1074US2025379549A1Efficiency enhanced power amplifier systemQORVO US INC·Filed 2025·Application pending·0 cites
- 1172US9768770B2Bias circuit for a high power radio frequency switching deviceTRIQUINT SEMICONDUCTOR INC·Filed 2014·Granted Sep 19, 2017·3 cites·17 claims
- 1268US10715085B2Reconfigurable low-noise amplifier (LNA)QORVO US INC·Filed 2019·Granted Jul 14, 2020·1 cites·18 claims
- 1367US12224717B2Distributed bias circuit for wideband amplifiersQORVO US INC·Filed 2022·Granted Feb 11, 2025·0 cites·20 claims
- 1466US12040759B2Power reconfigurable power amplifierQORVO US INC·Filed 2021·Granted Jul 16, 2024·0 cites·21 claims
- 1565US12483286B2Reinforcement learning receiver front-endQORVO US INC·Filed 2023·Granted Nov 25, 2025·0 cites·42 claims
- 1665US2025385703A1System and methods for controlling filter bank deviceQORVO US INC·Filed 2025·Application pending·0 cites
- 1759US9209507B1Monolithic wideband high power termination elementTRIQUINT SEMICONDUCTOR INC·Filed 2013·Granted Dec 8, 2015·2 cites·19 claims
- 1858US5256991ABroadband microwave active inductor circuitUNIV IOWA STATE RES FOUND INC·Filed 1992·Granted Oct 26, 1993·14 cites·17 claims
- 1956US11451226B2Radio frequency switch circuitryQORVO US INC·Filed 2020·Granted Sep 20, 2022·0 cites·25 claims
- 2051US10811750B2Circulator systemQORVO US INC·Filed 2019·Granted Oct 20, 2020·0 cites·20 claims
- 2149US10637527B2Sequentially switched bulk acoustic wave (BAW) delay line circulatorQORVO US INC·Filed 2018·Granted Apr 28, 2020·0 cites·19 claims
- 2245US9912371B2Self-activated transfer switchRF MICRO DEVICES INC·Filed 2016·Granted Mar 6, 2018·0 cites·22 claims
- 2345US9276538B2Low noise amplifier drain switch circuitTRIQUINT SEMICONDUCTOR INC·Filed 2014·Granted Mar 1, 2016·0 cites·20 claims
- 2440US11575373B2Switch circuitryQORVO US INC·Filed 2018·Granted Feb 7, 2023·0 cites·16 claims
- 2539US10164587B2Electronically reconfigurable matching networkQORVO US INC·Filed 2017·Granted Dec 25, 2018·0 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →