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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04/09/2002
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Application #:
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09519064
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Filing Dt:
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03/03/2000
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Inventors:
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Donald L Purvis, David D. Cramer, David D. Smith, Douglas L. Walton
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Title:
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DIVERSION TREATMENT METHOD
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| SUITE 1600 |
| 1001 FANNIN |
| HOUSTON, TEXAS 77002 |
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| O'KEEFE, EGAN & PETERMAN |
| 1101 CAPITAL OF TEXAS HIGHWAY SOUTH |
| BUILDING C |
| SUITE 2000 |
| AUSTIN, TEXAS 78746 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 5500 NORTHWEST CENTRAL DRIVE |
| HOUSTON, TEXAS 77092 |
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| O'KEEFE, EGAN & PETERMAN |
| WILLIAM W. ENDERS |
| 1101 CAPITAL OF TEXAS HIGHWAY SOUTH |
| BUILDING C., SUITE 200 |
| AUSTIN, TX 78746 |
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