W. James Hughes

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Tulsa, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for inducing under balanced drilling condition...
- Patent number 6,769,498
- Issue date Aug 3, 2004
- Sunstone Corporation
- W. James Hughes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for aligning drill pipe and tubing
- Patent number 5,950,744
- Issue date Sep 14, 1999
- W. James Hughes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for drilling a planar curved borehole
- Patent number 5,941,321
- Issue date Aug 24, 1999
- W. James Hughes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for short radius drilling of curved boreholes
- Patent number 5,467,834
- Issue date Nov 21, 1995
- Maverick Tool Company
- W. James Hughes
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for inducing under balanced drilling condition...
- Publication number 20040011561
- Publication date Jan 22, 2004
- W. James Hughes
- E21 - EARTH DRILLING MINING