Patent Assignment Details
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Reel/Frame: | 006542/0338 | |
| Pages: | 3 |
| | Recorded: | 05/07/1993 | | |
Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
1
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Patent #:
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Issue Dt:
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07/19/1994
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Application #:
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08060182
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Filing Dt:
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05/07/1993
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Title:
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DRILL BIT AND OTHER DOWNHOLE TOOLS HAVING ELECTRO-NEGATIVE SURFACES AND SACRIFICIAL ANODES TO REDUCE MUD BALLING
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Assignee
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3000 NORTH SAM HOUSTON PKWY E. |
HOUSTON, TEXAS 77032 |
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Correspondence name and address
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WILLIAM E. JOHNSON, JR.
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BROWNING, BUSHMAN, ANDERSON & BROOKHART
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5718 WESTHEIMER, SUITE 1800
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HOUSTON, TX 77057
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