Patent Assignment Abstract of Title
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Total Assignments:
2
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Patent #:
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Issue Dt:
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11/01/2011
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Application #:
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12851307
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Filing Dt:
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08/05/2010
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Publication #:
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Pub Dt:
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12/16/2010
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Inventors:
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Ephraim J. Gutmark, Tuck Leong Ho
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Title:
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ROTARY DRILL BIT WITH NOZZLES DESIGNED TO ENHANCE HYDRAULIC PERFORMANCE AND DRILLING FLUID EFFICIENCY
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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 |
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| BAKER BOTTS L.L.P. PATENT DEPARTMENT |
| 98 SAN JACINTO BLVD., SUITE 1500 |
| AUSTIN, TX 78701-4039 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 51 GOODMAN DRIVE |
| CINCINNATI, OHIO 45221 |
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| BAKER BOTTS L.L.P. |
| 98 SAN JACINTO BLVD. |
| SUITE 1500 |
| AUSTIN, TX 78701 |
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