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Total properties:
29
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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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04/14/1987
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Application #:
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06345468
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Filing Dt:
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02/03/1982
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Title:
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ROLLING CUTTER DRILL BIT
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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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06/17/1986
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Application #:
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06571410
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Filing Dt:
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01/17/1984
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Title:
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ROTARY DRILL BIT, PARTS THEREFOR, AND METHOD OF MANUFACTURING THEREOF
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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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Patent #:
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Issue Dt:
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10/15/1985
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Application #:
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06625495
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Filing Dt:
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06/28/1984
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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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10/28/1986
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Application #:
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06649646
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Filing Dt:
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09/12/1984
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Title:
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ROLLER CUTTER DRILL BIT HAVING A TEXTURIZED SEAL MEMBER
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Patent #:
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Issue Dt:
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07/15/1986
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Application #:
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06676244
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Filing Dt:
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11/29/1984
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Title:
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METHOD AND APPARATUS FOR MACHINING A WORKPIECE
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Patent #:
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Issue Dt:
|
09/09/1986
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Application #:
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06739884
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Filing Dt:
|
05/31/1985
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Title:
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DRILL BIT HAVING A FAILURE INDICATOR
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|
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Patent #:
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|
Issue Dt:
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08/19/1986
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Application #:
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06759459
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Filing Dt:
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07/26/1985
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Title:
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CUTTING MEANS FOR DRAG DRILL BITS
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|
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Patent #:
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|
Issue Dt:
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11/18/1986
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Application #:
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06776452
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Filing Dt:
|
09/16/1985
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|
Title:
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SEAL ASSEMBLY FOR DRILL BITS
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|
|
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Patent #:
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|
Issue Dt:
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10/21/1986
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Application #:
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06777279
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Filing Dt:
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09/18/1985
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Title:
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HARDENED BEARING SURFACE AND METHOD OF FORMING SAME
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|
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Patent #:
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Issue Dt:
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07/28/1987
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Application #:
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06830399
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Filing Dt:
|
02/18/1986
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Title:
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MOUNTING MEANS FOR CUTTING ELEMENTS IN DRAG TYPE ROTARY DRILL BIT
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Patent #:
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Issue Dt:
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08/25/1987
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Application #:
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06895288
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Filing Dt:
|
08/11/1986
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Title:
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DRILL BIT HAVING A FAILURE INDICATOR
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|
|
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Patent #:
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|
Issue Dt:
|
05/03/1988
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Application #:
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06908080
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Filing Dt:
|
09/15/1986
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|
Title:
|
DRILL BIT HAVING OFFSET ROLLER CUTTERS AND IMPROVED NOZZLES
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|
|
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Patent #:
|
|
Issue Dt:
|
05/16/1989
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Application #:
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07061413
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Filing Dt:
|
06/12/1987
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Title:
|
MOUNTING MEANS FOR CUTTING ELEMENTS IN DRAG TYPE ROTARY DRILL BIT
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|
|
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Patent #:
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|
Issue Dt:
|
03/13/1990
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Application #:
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07084892
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Filing Dt:
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08/13/1987
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Title:
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ROTARY DRILL BIT HAVING IMPROVED MOUNTING MEANS FOR MULTIPLE CUTTING ELEMENTS
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|
|
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Patent #:
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Issue Dt:
|
07/18/1989
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Application #:
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07162289
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Filing Dt:
|
02/29/1988
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|
Title:
|
DRILL BIT HAVING OFFSET ROLLER CUTTERS AND IMPROVED NOZZLES
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
06/13/1989
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Application #:
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07186022
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Filing Dt:
|
04/25/1988
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|
Title:
|
SEAL ASSEMBLY FOR ROTARY DRILL BITS
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|
|
|
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Patent #:
|
|
Issue Dt:
|
12/19/1989
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Application #:
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07218642
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Filing Dt:
|
07/13/1988
|
|
Title:
|
ROLLER CUTTER DRILL BIT AND METHOD OF FORMING
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|
|
|
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Patent #:
|
|
Issue Dt:
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07/18/1989
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Application #:
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07270431
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Filing Dt:
|
11/07/1988
|
|
Title:
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DRAG DRILL BIT HAVING IMPROVED ARRANGEMENT OF CUTTING ELEMENTS
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|
|
|
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Patent #:
|
|
Issue Dt:
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03/27/1990
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Application #:
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07312459
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Filing Dt:
|
02/21/1989
|
|
Title:
|
MEANS FOR RETAINING ROLLER CUTTERS ON ROTARY DRILL BIT
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|
|
|
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Patent #:
|
|
Issue Dt:
|
07/10/1990
|
Application #:
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07333576
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Filing Dt:
|
04/05/1989
|
|
Title:
|
CUTTING ELEMENTS FOR ROLLER CUTTER DRILL BITS
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|
