Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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05/16/1989
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Application #:
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07128798
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Filing Dt:
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12/04/1987
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Inventors:
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ALPHONSE C. PERRICONE, DENNIS K. CLAPPER, DOROTHY P. ENRIGHT
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Title:
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MODIFIED NON-POLLUTING LIQUID PHASE SHALE SWELLING INHIBITION DRILLING FLUID AND METHOD OF USING SAME
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| 3900 ESSEX LANE, SUITE 800 |
| A DE CORP. |
| HOUSTON, TEXAS 77027 |
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| NORVELL & ASSOCIATES |
| 6363 WOODWAY, SUITE 275 |
| HOUSTON, TX 77057 |
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