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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04/13/2004
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Application #:
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10152498
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Filing Dt:
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05/21/2002
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Publication #:
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Pub Dt:
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11/27/2003
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Inventors:
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Ying Xiang, George B. Witman IV, Michael A. Siracki
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Title:
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SINGLE-CONE ROCK BIT HAVING CUTTING STRUCTURE ADAPTED TO IMPROVE HOLE CLEANING, AND TO REDUCE TRACKING AND BIT BALLING
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 16740 HARDY ST. |
| HOUSTON, TEXAS 77032 |
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| JONATHAN P. OSHA |
| JEFFREY S. BERGMAN |
| 1221 MCKINNEY AVENUE |
| SUITE 2800 |
| HOUSTON, TX 77010 |
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