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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12/28/2010
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Application #:
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12253474
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Filing Dt:
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10/17/2008
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Publication #:
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Pub Dt:
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12/10/2009
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Inventors:
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Gokturk Tunc, Zheng Rong Xu, Patrick Schorn, Lawrence J. Leising
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Title:
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DOWNHOLE APPLICATION FOR A BACKPRESSURE VALVE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 110 SCHLUMBERGER DRIVE |
| SUGAR LAND, TEXAS 77478 |
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| RODNEY WARFFORD |
| 555 INDUSTRIAL BLVD., MD-5 |
| SUGAR LAND, TX 77478 |
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