J. Derwin King

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San Antonio, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Measurement of flow fractions flow velocities and flow rates of a m...
- Patent number 6,268,727
- Issue date Jul 31, 2001
- Southwest Research Institute
- J. Derwin King
- E21 - EARTH DRILLING MINING
Information Patent Grant
Measurement of flow fractions, flow velocities, and flow rates of a...
- Patent number 6,046,587
- Issue date Apr 4, 2000
- Southwest Research Institute
- J. Derwin King
- E21 - EARTH DRILLING MINING
Information Patent Grant
Explosive detection method and apparatus using selective gamma ray...
- Patent number 5,159,617
- Issue date Oct 27, 1992
- Southwest Research Institute
- J. Derwin King
- G01 - MEASURING TESTING