Patent Assignment Details
NOTE:Results display only for issued patents and published applications.
For pending or abandoned applications please consult USPTO staff.
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| Reel/Frame: | 012463/0126 | |
| Pages: | 5 |
| | Recorded: | 01/09/2002 | | |
| Conveyance: | CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). |
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Total properties:
9
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Patent #:
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Issue Dt:
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06/05/1984
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Application #:
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06338768
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Filing Dt:
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01/11/1982
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Title:
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VALVE ASSEMBLY FOR DRILL BIT LUBRICATION SYSTEM
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Patent #:
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Issue Dt:
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05/14/1985
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Application #:
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06437927
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Filing Dt:
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11/01/1982
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Title:
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DRILL BIT HAVING ANGLED NOZZLES FOR IMPROVED BIT AND WELL BORE CLEANING
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Patent #:
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Issue Dt:
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04/24/1984
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Application #:
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06480560
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Filing Dt:
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03/30/1983
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Title:
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COMBINATION DRAG AND ROLLER CUTTER DRILL BIT
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Patent #:
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Issue Dt:
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11/26/1985
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Application #:
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06510693
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Filing Dt:
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07/05/1983
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Title:
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ROTARY DRILL BIT HAVING DRAG CUTTING ELEMENTS
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Patent #:
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Issue Dt:
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04/15/1986
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Application #:
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06547183
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Filing Dt:
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10/31/1983
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Title:
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DRILL BIT HAVING REPLACEABLE NOZZLES DIRECTING DRILLING FLUID AT A PREDETERMINED ANGLE
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Patent #:
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Issue Dt:
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09/16/1986
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Application #:
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06553937
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Filing Dt:
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11/21/1983
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Title:
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DRILL BIT HAVING OFFSET ROLLER CUTTERS AND IMPROVED NOZZLES
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Patent #:
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Issue Dt:
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12/17/1985
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Application #:
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06573245
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Filing Dt:
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01/23/1984
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Title:
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DRILL BIT HAVING ANGLED NOZZLES
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Patent #:
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Issue Dt:
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09/24/1985
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Application #:
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06575644
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Filing Dt:
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01/31/1984
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Title:
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NOZZLE ASSEMBLY FOR AN EARTH BORING DRILL BIT
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Patent #:
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Issue Dt:
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10/22/1985
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Application #:
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06580502
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Filing Dt:
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02/15/1984
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Title:
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DRILL BIT HAVING A FAILURE INDICATOR
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Assignee
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| 7030 ARDMORE |
| HOUSTON, TEXAS 77054 |
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Correspondence name and address
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SCHLUMBERGER OILFIELD SERVICES
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JEFFREY E. DALY
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7211 N. GESSNER
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HOUSTON, TEXAS 77040
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