Thomas D. Svoboda

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Pasadena, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for changing bits while drilling with a flexib...
- Patent number 5,746,279
- Issue date May 5, 1998
- Gas Research Institute
- Kenneth Havlinek
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for drilling with a flexible shaft while using...
- Patent number 5,687,806
- Issue date Nov 18, 1997
- Gas Research Institute
- Alan Sallwasser
- E21 - EARTH DRILLING MINING