Patent Assignment Details
NOTE:Results display only for issued patents and published applications.
For pending or abandoned applications please consult USPTO staff.
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| Reel/Frame: | 021826/0403 | |
| Pages: | 6 |
| | Recorded: | 11/12/2008 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
5
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Patent #:
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Issue Dt:
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05/19/2009
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Application #:
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11633703
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Filing Dt:
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12/05/2006
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Publication #:
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Pub Dt:
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04/05/2007
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Title:
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INVERT DRILLING FLUIDS AND METHODS OF DRILLING BOREHOLES
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Patent #:
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Issue Dt:
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06/16/2009
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Application #:
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11633704
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Filing Dt:
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12/05/2006
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Publication #:
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Pub Dt:
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04/05/2007
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Title:
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INVERT DRILLING FLUIDS AND METHODS OF DRILLING BOREHOLES
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Patent #:
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Issue Dt:
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12/09/2008
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Application #:
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11633822
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Filing Dt:
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12/05/2006
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Publication #:
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Pub Dt:
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04/05/2007
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Title:
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FLAT RHEOLOGY DRILLING FLUIDS
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Patent #:
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Issue Dt:
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02/10/2009
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Application #:
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11634008
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Filing Dt:
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12/05/2006
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Publication #:
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Pub Dt:
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04/12/2007
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Title:
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INVERT DRILLING FLUIDS FOR USE IN DRILLING IN SUBTERRANEAN FORMATIONS
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Patent #:
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Issue Dt:
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04/13/2010
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Application #:
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11825236
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Filing Dt:
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07/05/2007
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Publication #:
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Pub Dt:
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01/17/2008
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Title:
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DIESEL OIL-BASED INVERT EMULSION DRILLING FLUIDS AND METHODS OF DRILLING BOREHOLES
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Assignee
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| 10200 BELLAIRE BOULEVARD |
| HOUSTON, TEXAS 77072-52006 |
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Correspondence name and address
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KAREN B. TRIPP
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P.O. BOX 1301
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HOUSTON, TEXAS 77251-1301
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