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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03/05/1985
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Application #:
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06530814
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Filing Dt:
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09/09/1983
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Inventors:
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DAVID M. GIDDINGS, DONALD G. RIES, ALLEN R. SYRINEK
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Title:
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TERPOLYMERS FOR USE AS HIGH TEMPERATURE FLUID LOSS ADDITIVE AND RHEOLOGY STABILIZER FOR HIGH PRESSURE, HIGH TEMPERATURE OIL WELL DRILLING FLUIDS
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| A DE CORP. |
| OAK BROOK, ILLINOIS |
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| JOHN G. PREMO |
| PATENT & LICENSING DEPT. |
| NALCO CHEMICAL CO. |
| 2901 BUTTERFIELD RD. |
| OAK BROOK, IL 60521 |
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Assignment:
2
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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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Assignment:
3
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
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| 7701 HIGHWAY 90-A |
| SUGAR LAND, TEXAS 77478 |
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| ONDEO NALCO COMPANY |
| MICHAEL B. MARTIN |
| ONDEO NALCO CENTER |
| NAPERVILLE, IL 60563-1198 |
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