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Glen Batten
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Glasshoughton, GB
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Patents Grants
last 30 patents
Information
Patent Grant
Downhole apparatus for controlling fluid pressure
Patent number
6,494,269
Issue date
Dec 17, 2002
Baker Hughes Incorporated
Clive John French
E21 - EARTH DRILLING MINING
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Patent Grant
Downhole apparatus
Patent number
6,230,808
Issue date
May 15, 2001
Ocre (Scotland) Limited
Clive John French
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
Downhole tool
Publication number
20020157824
Publication date
Oct 31, 2002
Clive John French
E21 - EARTH DRILLING MINING
Information
Patent Application
Downhole apparatus
Publication number
20010007284
Publication date
Jul 12, 2001
Clive John French
E21 - EARTH DRILLING MINING