Donald E. Hoke

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Albuquerque, NM, US

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Patents Grantslast 30 patents

Information Patent Grant
Downhole steam generator with improved preheating/cooling features
- Patent number 4,411,618
- Issue date Oct 25, 1983
- A. Burl Donaldson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole steam injector
- Patent number 4,366,860
- Issue date Jan 4, 1983
- The United States of America as represented by the United States Department o...
- A. Burl Donaldson
- E21 - EARTH DRILLING MINING