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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07423483
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Filing Dt:
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10/11/1989
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Inventors:
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CHARLES W. PLEASANTS, KEITH W. SCOTT
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Title:
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HYDRAULIC UP-DOWN WELL JAR AND METHOD OF OPERATING SAME
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| A CORP. OF DE |
| CARROLLTON, TEXAS |
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| OTIS ENGINEERING CORPORATION |
| P.O. BOX 819052 |
| DALLAS, TX 75381-9052 |
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Assignment:
2
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MERGER (SEE DOCUMENT FOR DETAILS).
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| LEGAL, INTELLECTUAL PROPERTY DEPARTMENT |
| P.O. BOX 819052 |
| DALLAS, TEXAS 75381 |
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| ROBERT A. KENT |
| LEGAL, INTELLECTUAL PROPERTY DEPARTMENT |
| HALLIBURTON ENERGY SERVICES |
| MAIL CODE 1-E-135, P.O. BOX 819052 |
| DALLAS, TX 75381 |
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