Patent Assignment Details
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For pending or abandoned applications please consult USPTO staff.
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| Reel/Frame: | 007381/0188 | |
| Pages: | 8 |
| | Recorded: | 03/08/1995 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
6
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Patent #:
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Issue Dt:
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Application #:
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05873085
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Filing Dt:
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Title:
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Patent #:
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Issue Dt:
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04/08/1986
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Application #:
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06570093
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Filing Dt:
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01/12/1984
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Title:
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DISPERSANT FOR WATER-BASED SOLIDS-CONTAINING FLUIDS AND A DRILLING FLUID
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Patent #:
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Issue Dt:
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02/24/1987
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Application #:
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06659521
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Filing Dt:
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10/10/1984
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Title:
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METHOD OF TREATING OIL CONTAMINATED CUTTINGS
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Patent #:
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Issue Dt:
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01/12/1988
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Application #:
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06919587
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Filing Dt:
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10/16/1986
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Title:
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SHALE-STABILIZING DRILLING FLUIDS AND METHOD FOR PRODUCING SAME
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Patent #:
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Issue Dt:
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05/19/1992
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Application #:
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07473474
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Filing Dt:
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02/01/1990
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Title:
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A METHOD OF MAKING DRILLING FLUID CONTAINING ASPHALTITE IN A DISPERSED STATE
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Patent #:
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Issue Dt:
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05/19/1992
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Application #:
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07482852
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Filing Dt:
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02/22/1990
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Title:
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A METHOD OF MAKING A DRILLING FLUID CONTAINING CARBON BLACK IN A DISPERSED STATE
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Assignee
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| 300 CRESCENT COURT, SUITE 1600 |
| DALLAS, TEXAS 75201 |
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Correspondence name and address
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GARDERE & WYNNE, L.L.P.
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WILLIAM D. YOUNG
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3000 THANKSGIVING TOWER
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1601 ELM STREET
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DALLAS, TEXAS 75201-4761
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