Inventor · disambiguated record
Allen Duckworth
Also filed as: DUCKWORTH ALLEN
7 granted patents·303 citations·filing 1974–1992
89Inventor score
Top patents by PatentIndex Score
7 records- 0190US4786874AResistivity sensor for generating asymmetrical current field and method of using the sameTELECO OILFIELD SERVICES INC·Filed 1986·Granted Nov 22, 1988·78 cites·18 claims
- 0282US5215152ARotating pulse valve for downhole fluid telemetry systemsTELECO OILFIELD SERVICES INC·Filed 1992·Granted Jun 1, 1993·86 cites·24 claims
- 0373US4630809AVibration isolator and shock absorber deviceTELECO OILFIELD SERVICES INC·Filed 1985·Granted Dec 23, 1986·30 cites·8 claims
- 0466US3941498AVariable geometry collector for centrifugal pumpCHANDLER EVANS INC·Filed 1974·Granted Mar 2, 1976·22 cites·5 claims
- 0564US5050132AAcoustic data transmission methodTELECO OILFIELD SERVICES INC·Filed 1990·Granted Sep 17, 1991·43 cites·5 claims
- 0652US5010765AMethod of monitoring core sampling during borehole drillingTELECO OILFIELD SERVICES INC·Filed 1989·Granted Apr 30, 1991·25 cites·6 claims
- 0745US5096001AMWD tool for deep, small diameter boreholesTELECO OILFIELD SERVICES INC·Filed 1991·Granted Mar 17, 1992·19 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →