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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04/16/1991
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Application #:
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07473863
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Filing Dt:
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02/02/1990
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Inventors:
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DENNIS A. WILLIAMS, ROGER L. HORTON, ROBERT E. CHUMLEY, JOHN C. NEWLOVE
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Title:
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METHOD OF TREATING SUBTERRANEAN FORMATIONS USING A NON-DAMAGING FRACTURING FLUID
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| ROBERT L. GRAHAM |
| R.L. GRAHAM |
| 15603 KUYKENDAHL, |
| SUITE 115 |
| HOUSTON, TX 77090 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 7701 HIGHWAY 90-A |
| SUGARLAND, TEXAS 77478 |
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| NALCO CHEMICAL COMPANY |
| ROBERT A. MILLER |
| PATENT AND LICENSING DEPT. |
| ONE NALCO CENTER |
| NAPERVILLE, IL 60563-1198 |
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