Patent Assignment Abstract of Title
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Total Assignments:
3
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Patent #:
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Issue Dt:
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05/04/1993
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Application #:
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07906560
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Filing Dt:
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06/30/1992
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Inventors:
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C. DARWIN WILLIAMSON, DODD W. FONG, ROBERT K. GABEL
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Title:
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ACRYLAMIDE TERPOLYMER SHALE STABILIZING ADDITIVE FOR LOW VISCOSITY OIL AND GAS DRILLING
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| ONE NALCO CENTER |
| NAPERVILLE, ILLINOIS 60563-1198 |
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| DANIEL N. LUNDEEN |
| SROUFE, ZAMECKI, PAYNE & LUNDEEN L.L.P. |
| 1700 WEST LOOP SOUTH, STE. 1230 |
| HOUSTON, TX 77027-3008 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| ONE NALCO CENTER |
| NAPERVILLE, ILLINOIS 60563-1198 |
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| DANIEL N. LUNDEEN |
| SROUFE, ZAMECKI, PAYNE & LUNDEEN, L.L.P. |
| 1700 WEST LOOP SOUTH, SUITE 1230 |
| HOUSTON, TX 77027 |
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Assignment:
3
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| LIMITED PARTNERSHIP |
| 7705 HIGHWAY 90-A |
| SUGARLAND, TEXAS 77478 |
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| NALCO CHEMICAL COMPANY |
| ROBERT A. MILLER |
| PATENT & LICENSING DEPT. |
| ONE NALCO CENTER |
| NAPERVILLE, IL 60563-1198 |
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