Patent Assignment Details
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Reel/Frame: | 004757/0914 | |
| Pages: | 2 |
| | Recorded: | 09/03/1987 | | |
Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Total properties:
1
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Patent #:
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Issue Dt:
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06/06/1989
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Application #:
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07086999
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Filing Dt:
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08/18/1987
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Title:
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METHOD AND APPARATUS FOR MEASURING THE ELECTRICAL RESISTIVITY OF GEOLOGIC FORMATIONS THROUGH METAL DRILL PIPE OR CASING
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Assignee
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A CORP. OF DE |
LOS ANGELES, CALIFORNIA |
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Correspondence name and address
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MICHAEL E. MARTIN
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PATENT DEPT.
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ATLANTIC RICHFIELD CO.
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2300 WEST PLANO PARKWAY
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PLANO, TX 75075
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