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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01/12/1993
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Application #:
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07531981
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Filing Dt:
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06/01/1990
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Inventor:
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JULIANNE ELWARD-BERRY
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Title:
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RHEOLOGICALLY-STABLE WATER-BASED HIGH TEMPERATURE DRILLING FLUID
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| HOUSTON, TEXAS 77252-2189 |
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| MICHAEL A. NAMETZ |
| EXXON PRODUCTION RESEARCH CO. |
| P.O. BOX 2189 |
| HOUSTON, TX 77252-2189 |
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Assignment:
2
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
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| P.O. BOX 2189, HOUSTON, TEXAS 77252-2189 |
| 3120 BUFFALO SPEEDWAY |
| HOUSTON, TEXAS 77098 |
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| EXXON MOBIL UPSTREAM RESEARCH COMPANY |
| SALVATORE J. CASAMASSIMA |
| 3319 MERCER STREET |
| HOUSTON, TX 77027 |
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