Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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07/14/2009
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Application #:
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11244801
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Filing Dt:
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10/06/2005
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Publication #:
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Pub Dt:
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04/12/2007
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Inventors:
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Stephen A. Bell, William W. Shumway
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Title:
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ADDITIVES FOR IMPARTING FRAGILE PROGRESSIVE GEL STRUCTURE AND CONTROLLED TEMPORARY VISCOSITY TO OIL BASED DRILLING FLUIDS
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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10200 BELLAIRE BOULEVARD |
HOUSTON, TEXAS 77072-5206 |
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KAREN B. TRIPP |
P.O. BOX 1301 |
HOUSTON, TX 77251-1301 |
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