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Jason Bigelow
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Houston, TX, US
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last 30 patents
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Patent Grant
Modular retrievable packer
Patent number
6,892,820
Issue date
May 17, 2005
Schlumberger Technology Corporation
Robert Divis
E21 - EARTH DRILLING MINING
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last 30 patents
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Patent Application
Modular retrievable packer
Publication number
20040026092
Publication date
Feb 12, 2004
Robert Divis
E21 - EARTH DRILLING MINING