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Morgantown, WV, US
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Patents Grants
last 30 patents
Information
Patent Grant
Methods and apparatus for drilling directional wells by percussion...
Patent number
8,893,823
Issue date
Nov 25, 2014
Javins Corporation
Huy D. Bui
E21 - EARTH DRILLING MINING
Information
Patent Grant
Force balancing system for use with a well bore tool
Patent number
7,857,076
Issue date
Dec 28, 2010
Javins Corporation
Huy D. Bui
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and apparatus for drilling directional wells by percussion...
Patent number
7,832,502
Issue date
Nov 16, 2010
Javins Corporation
Huy D. Bui
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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