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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07/24/2012
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Application #:
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12415188
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Filing Dt:
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03/31/2009
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Publication #:
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Pub Dt:
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07/23/2009
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Inventors:
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David R. Hall, Scott Dahlgren, Jonathan Marshall
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Title:
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DOWNHOLE PERCUSSIVE TOOL WITH ALTERNATING PRESSURE DIFFERENTIALS
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 2185 SOUTH LARSEN PARKWAY |
| PROVO, UTAH 84606 |
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| TYSON J. WILDE NOVATEK INTERNATIONAL, IN |
| 2185 SOUTH LARSEN PARKWAY |
| PROVO, UT 84606 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 5599 SAN FELIPE |
| SUITE 1600 |
| HOUSTON, TEXAS 77056 |
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| JAMES W. REPASS |
| 1301 MCKINNEY STREET |
| FULBRIGHT & JAWORSKI L.L.P. |
| HOUSTON, TX 77010 |
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