Inventor · disambiguated record
Douglas R. Curtis
Also filed as: CURTIS DOUGLAS R
9 granted patents·230 citations·filing 1975–1997
89Inventor score
Top patents by PatentIndex Score
9 records- 0194US5294889ABattery operated capacitance measurement circuitTANDY CORP·Filed 1992·Granted Mar 15, 1994·134 cites·25 claims
- 0277US4004141ALinear/logarithmic analog multiplierCURTIS DOUGLAS R·Filed 1975·Granted Jan 18, 1977·26 cites·28 claims
- 0365US4514704AVariable filter circuitCURTIS DOUGLAS R·Filed 1983·Granted Apr 30, 1985·15 cites·20 claims
- 0457US5373410ASingle string resistive divider network for a digital multimeterTANDY CORP·Filed 1992·Granted Dec 13, 1994·19 cites·16 claims
- 0546US5355082AAutomatic transistor checkerTANDY CORP·Filed 1992·Granted Oct 11, 1994·10 cites·8 claims
- 0643US5606481AOvervoltage protection for battery powered equipmentTANDY CORP·Filed 1994·Granted Feb 25, 1997·10 cites·23 claims
- 0737US5214321AAnalog multiplier/divider utilizing substrate bipolar transistorsCURTIS DOUGLAS R·Filed 1992·Granted May 25, 1993·7 cites·26 claims
- 0832US5898890AMethod for transferring data between devices by generating a strobe pulse and clamping a clock lineAST RESEARCH INC·Filed 1997·Granted Apr 27, 1999·6 cites·6 claims
- 0931US5414373AAutomatic transistor checkerTANDY CORP·Filed 1994·Granted May 9, 1995·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →