Inventor · disambiguated record
David M. Stumfall
Also filed as: STUMFALL DAVID M
6 granted patents·255 citations·filing 1982–1997
87Inventor score
Top patents by PatentIndex Score
6 records- 0181US6011322AApparatus and method for providing power to circuitry implementing two different power sourcesSONY CORP·Filed 1997·Granted Jan 4, 2000·103 cites·20 claims
- 0279US4507796AElectronic apparatus having low radio frequency interference from system clock signalPRINTRONIX INC·Filed 1982·Granted Mar 26, 1985·46 cites·5 claims
- 0368US6031299AApparatus and method of providing EMI filteringSONY CORP·Filed 1997·Granted Feb 29, 2000·39 cites·21 claims
- 0460US5942811AApparatus and method for extending the supply of reserved power during a line power interruptionSONY CORP·Filed 1997·Granted Aug 24, 1999·41 cites·20 claims
- 0559US4875409AMagnetic print hammer actuator protection circuitPRINTRONIX INC·Filed 1987·Granted Oct 24, 1989·11 cites·14 claims
- 0650US6160591AApparatus and method of providing switching frequency synchronizationSONY CORP·Filed 1997·Granted Dec 12, 2000·15 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →