Inventor · disambiguated record
David B. Francis
Also filed as: FRANCIS DAVID · FRANCIS DAVID B
6 granted patents·160 citations·filing 1979–2011
84Inventor score
Top patents by PatentIndex Score
6 records- 0184US6697960B1Method and system for recovering data to maintain business continuityCITIBANK NA·Filed 2000·Granted Feb 24, 2004·76 cites·45 claims
- 0276US8479568B1Apparatus for measuring variations in flatnessCHAMPAIGNE JACK·Filed 2011·Granted Jul 9, 2013·5 cites·5 claims
- 0367US4420815AApparatus and method for removal of sinusoidal noise from a sampled signalIBM·Filed 1981·Granted Dec 13, 1983·16 cites·19 claims
- 0462US4321932AElectrode impedance monitoring method apparatus for electrocardiographyIBM·Filed 1979·Granted Mar 30, 1982·15 cites·23 claims
- 0557US4509530ASystem for plotting a miniature ECGIBM·Filed 1983·Granted Apr 9, 1985·46 cites·13 claims
- 0625US4581671AMagnetic tape recording and playback systemIBM·Filed 1983·Granted Apr 8, 1986·2 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →