Allen Duckworth

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Middlefield, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotating pulse valve for downhole fluid telemetry systems
- Patent number 5,215,152
- Issue date Jun 1, 1993
- Teleco Oilfield Services Inc.
- Allen Duckworth
- E21 - EARTH DRILLING MINING
Information Patent Grant
MWD tool for deep, small diameter boreholes
- Patent number 5,096,001
- Issue date Mar 17, 1992
- Teleco Oilfield Services Inc.
- Jean P. R. Buytaert
- E21 - EARTH DRILLING MINING
Information Patent Grant
Acoustic data transmission method
- Patent number 5,050,132
- Issue date Sep 17, 1991
- Teleco Oilfield Services Inc.
- Allen Duckworth
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of monitoring core sampling during borehole drilling
- Patent number 5,010,765
- Issue date Apr 30, 1991
- Teleco Oilfield Services Inc.
- Allen Duckworth
- E21 - EARTH DRILLING MINING
Information Patent Grant
Vibration isolator and shock absorber device
- Patent number 4,630,809
- Issue date Dec 23, 1986
- Teleco Oilfield Services Inc.
- Allen Duckworth
- E21 - EARTH DRILLING MINING