Roland B. Heath

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Vernal, UT, US

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Patents Grantslast 30 patents

Information Patent Grant
Load-bearing pressurized liquid column
- Patent number 7,232,103
- Issue date Jun 19, 2007
- Efficient Mining Systems LLC
- Roland B. Heath
- E21 - EARTH DRILLING MINING
Information Patent Grant
Load-bearing pressurized liquid column
- Patent number 6,637,159
- Issue date Oct 28, 2003
- Efficient Mining Systems LLC
- Roland B. Heath
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Load-bearing pressurized liquid column
- Publication number 20060086885
- Publication date Apr 27, 2006
- Efficient Mining Systems LLC.
- Roland B. Heath
- E21 - EARTH DRILLING MINING