Inventor · disambiguated record
Geoffrey W. Perkins
Also filed as: PERKINS GEOFFREY · PERKINS GEOFFREY W
23 granted patents·283 citations·filing 1979–2012
96Inventor score
Top patents by PatentIndex Score
23 records- 0186US8598916B2Circuit having gate drivers having a level shifterMILLER IRA G·Filed 2010·Granted Dec 3, 2013·10 cites·11 claims
- 0282US8049299B2Antifuses with curved breakdown regionsFREESCALE SEMICONDUCTOR INC·Filed 2009·Granted Nov 1, 2011·9 cites·16 claims
- 0378US7700417B2Methods for forming cascode current mirrorsFREESCALE SEMICONDUCTOR INC·Filed 2007·Granted Apr 20, 2010·6 cites·20 claims
- 0478US4800429AAuto sync polarity control circuit for use with monitorMOTOROLA INC·Filed 1988·Granted Jan 24, 1989·32 cites·7 claims
- 0577US4506292AVideo driver circuit and method for automatic gray scale adjustment and elimination of contrast tracking errorsMOTOROLA INC·Filed 1984·Granted Mar 19, 1985·26 cites·34 claims
- 0674US4760353AIntegrated gyrator oscillatorMOTOROLA INC·Filed 1988·Granted Jul 26, 1988·30 cites·1 claims
- 0773US8329514B2Methods for forming antifuses with curved breakdown regionsMIN WON GI·Filed 2011·Granted Dec 11, 2012·3 cites·17 claims
- 0873US4663594AElectronic phase shifter circuit and methodMOTOROLA INC·Filed 1984·Granted May 5, 1987·24 cites·7 claims
- 0968US7486535B2Method and device for programming anti-fusesFREESCALE SEMICONDUCTOR INC·Filed 2007·Granted Feb 3, 2009·5 cites·18 claims
- 1067US7851834B2Cascode current mirror and methodFREESCALE SEMICONDUCTOR INC·Filed 2010·Granted Dec 14, 2010·2 cites·17 claims
- 1163US9559592B2Synchronous rectifier timer for discontinuous mode DC/DC converterPIGOTT JOHN M·Filed 2012·Granted Jan 31, 2017·2 cites·19 claims
- 1262US5646580AMethod and apparatus for switching crystals in a crystal controlled oscillatorMOTOROLA INC·Filed 1996·Granted Jul 8, 1997·13 cites·19 claims
- 1361US4485348AFull wave envelope detector using current mirrorsMOTOROLA INC·Filed 1982·Granted Nov 27, 1984·15 cites·5 claims
- 1460US5715014ACircuit and method of providing parental discretionary control on a PIP ICMOTOROLA INC·Filed 1996·Granted Feb 3, 1998·34 cites·19 claims
- 1559US5355806AMonocoque locomotiveGEN ELECTRIC·Filed 1993·Granted Oct 18, 1994·19 cites·1 claims
- 1654US5552742ACircuit for controlling current flow between two nodesMOTOROLA INC·Filed 1995·Granted Sep 3, 1996·13 cites·20 claims
- 1754US4298886AAutomatic peak beam current leveler systemMOTOROLA INC·Filed 1979·Granted Nov 3, 1981·9 cites·10 claims
- 1852US4876518AFrequency tracking systemMOTOROLA INC·Filed 1988·Granted Oct 24, 1989·10 cites·10 claims
- 1938US5767662AAmplifier having single-ended input and differential output and method for amplifying a signalMOTOROLA INC·Filed 1996·Granted Jun 16, 1998·6 cites·16 claims
- 2036US5839815AHeadlight enclosure for a monocoque locomotiveGEN ELECTRIC·Filed 1997·Granted Nov 24, 1998·6 cites·5 claims
- 2133US6224308B1Brace panel assembly for a monocoque locomotiveGEN ELECTRIC·Filed 1998·Granted May 1, 2001·7 cites·11 claims
- 2230US4488177AT.V. Integrator circuit and horizontal oscillatorMOTOROLA INC·Filed 1982·Granted Dec 11, 1984·0 cites·4 claims
- 2329US5093585ACurrent biasing for I2 L circuitsMOTOROLA INC·Filed 1991·Granted Mar 3, 1992·2 cites·8 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →