Patent Assignment Details
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Reel/Frame: | 007473/0403 | |
| Pages: | 3 |
| | Recorded: | 04/26/1995 | | |
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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01/14/1997
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Application #:
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08429436
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Filing Dt:
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04/26/1995
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Title:
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FRICTION MODIFIER FOR WATER-BASED WELL DRILLING FLUIDS AND METHODS OF USING THE SAME
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Assignee
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29400 LAKELAND BOULEVARD |
WICKLIFFE, OHIO 44092 |
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Correspondence name and address
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JOHN H. ENGELMANN
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THE LUBRIZOL CORPORATION
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PATENT DEPARTMENT
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29400 LAKELAND BOULEVARD
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WICKLIFFE, OH 44092-2298
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