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Patent #:
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Issue Dt:
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07/29/1986
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Application #:
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06618113
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Filing Dt:
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06/07/1984
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Title:
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DIAMOND DRILL BIT WITH VARIED CUTTING ELEMENTS
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Patent #:
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Issue Dt:
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07/29/1986
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Application #:
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06618113
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Filing Dt:
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06/07/1984
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Title:
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DIAMOND DRILL BIT WITH VARIED CUTTING ELEMENTS
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Patent #:
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Issue Dt:
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12/24/1985
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Application #:
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06625479
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Filing Dt:
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06/28/1984
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Title:
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METHOD FOR SHANKING ROCK BITS
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Patent #:
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Issue Dt:
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12/24/1985
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Application #:
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06625479
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Filing Dt:
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06/28/1984
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Title:
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METHOD FOR SHANKING ROCK BITS
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Patent #:
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Issue Dt:
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02/17/1987
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Application #:
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06636195
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Filing Dt:
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07/31/1984
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Title:
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DIAGNOSTIC APPARATUS
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Patent #:
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Issue Dt:
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08/05/1986
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Application #:
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06656825
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Filing Dt:
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10/02/1984
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Title:
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REPLACEABLE BIT NOZZLE
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Patent #:
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Issue Dt:
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08/05/1986
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Application #:
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06656825
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Filing Dt:
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10/02/1984
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Title:
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REPLACEABLE BIT NOZZLE
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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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06705158
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Filing Dt:
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02/25/1985
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Title:
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EARTH BORING BIT WITH BEARING SLEEVE
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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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06705158
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Filing Dt:
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02/25/1985
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Title:
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EARTH BORING BIT WITH BEARING SLEEVE
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Patent #:
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Issue Dt:
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12/23/1986
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Application #:
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06708207
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Filing Dt:
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03/04/1985
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Title:
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DOWNHOLE PRESSURE FLUCTUATING TOOL
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Patent #:
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Issue Dt:
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12/23/1986
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Application #:
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06708207
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Filing Dt:
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03/04/1985
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Title:
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DOWNHOLE PRESSURE FLUCTUATING TOOL
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Patent #:
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Issue Dt:
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01/28/1986
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Application #:
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06710000
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Filing Dt:
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03/13/1985
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Title:
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WELDING TORCH WITH DUAL GAS SHIELDING
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Patent #:
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Issue Dt:
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01/28/1986
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Application #:
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06710000
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Filing Dt:
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03/13/1985
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Title:
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WELDING TORCH WITH DUAL GAS SHIELDING
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Patent #:
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Issue Dt:
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05/19/1987
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Application #:
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06733435
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Filing Dt:
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05/13/1985
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Title:
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EARTH BORING BIT WITH IMPROVED RIGID FACE SEAL ASSEMBLY
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Patent #:
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Issue Dt:
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05/19/1987
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Application #:
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06733435
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Filing Dt:
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05/13/1985
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Title:
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EARTH BORING BIT WITH IMPROVED RIGID FACE SEAL ASSEMBLY
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Patent #:
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Issue Dt:
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04/07/1987
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Application #:
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06743449
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Filing Dt:
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06/11/1985
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Title:
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SIMULTANEOUS CARBURIZING AND BORONIZING OF EARTH BORING DRILL BITS
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Patent #:
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Issue Dt:
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04/07/1987
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Application #:
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06743449
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Filing Dt:
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06/11/1985
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Title:
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SIMULTANEOUS CARBURIZING AND BORONIZING OF EARTH BORING DRILL BITS
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Patent #:
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Issue Dt:
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04/07/1987
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Application #:
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06787580
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Filing Dt:
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10/15/1985
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Title:
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PRE-SET TORQUE LIMITER SUB
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Patent #:
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Issue Dt:
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05/12/1987
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Application #:
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06790922
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Filing Dt:
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10/24/1985
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Title:
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METHOD FOR PROTECTING FROM HARDENING A SELECTED REGION OF A STEEL STRUCTURE
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Patent #:
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Issue Dt:
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05/12/1987
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Application #:
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06790922
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Filing Dt:
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10/24/1985
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Title:
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METHOD FOR PROTECTING FROM HARDENING A SELECTED REGION OF A STEEL STRUCTURE
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Patent #:
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Issue Dt:
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09/23/1986
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Application #:
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06795574
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Filing Dt:
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11/06/1985
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Title:
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EARTH BORING BIT WITH LABYRINTH SEAL PROTECTOR
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Patent #:
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Issue Dt:
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09/23/1986
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Application #:
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06795574
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Filing Dt:
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11/06/1985
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Title:
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EARTH BORING BIT WITH LABYRINTH SEAL PROTECTOR
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Patent #:
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Issue Dt:
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02/17/1987
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Application #:
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06806253
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Filing Dt:
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12/06/1985
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Title:
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PACK CARBURIZING PROCESS FOR EARTH BORING DRILL BITS
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Patent #:
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Issue Dt:
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02/17/1987
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Application #:
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06806253
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Filing Dt:
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12/06/1985
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Title:
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PACK CARBURIZING PROCESS FOR EARTH BORING DRILL BITS
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Patent #:
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Issue Dt:
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06/09/1987
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Application #:
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06814343
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Filing Dt:
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12/27/1985
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Title:
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EARTH BORING BIT WITH SHEAR COMPRESSION SEAL
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Patent #:
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Issue Dt:
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06/09/1987
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Application #:
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06814343
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Filing Dt:
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12/27/1985
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Title:
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EARTH BORING BIT WITH SHEAR COMPRESSION SEAL
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Patent #:
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Issue Dt:
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05/26/1987
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Application #:
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06867343
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Filing Dt:
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05/23/1986
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Title:
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MATRIX BIT WITH EXTENDED BLADES
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Patent #:
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Issue Dt:
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05/26/1987
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Application #:
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06867343
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Filing Dt:
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05/23/1986
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Title:
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MATRIX BIT WITH EXTENDED BLADES
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Patent #:
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Issue Dt:
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09/29/1987
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Application #:
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06880214
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Filing Dt:
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06/30/1986
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Title:
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DRILLING BIT WITH FULL RELEASE VOID AREAS
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Patent #:
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Issue Dt:
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09/29/1987
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Application #:
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06880214
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Filing Dt:
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06/30/1986
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Title:
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DRILLING BIT WITH FULL RELEASE VOID AREAS
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Patent #:
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Issue Dt:
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08/11/1987
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Application #:
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06893112
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Filing Dt:
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08/04/1986
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Title:
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METHOD OF HARDFACING STEEL BODIED BITS
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Patent #:
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Issue Dt:
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08/11/1987
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Application #:
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06893112
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Filing Dt:
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08/04/1986
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Title:
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METHOD OF HARDFACING STEEL BODIED BITS
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Patent #:
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Issue Dt:
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03/01/1988
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Application #:
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06927789
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Filing Dt:
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11/05/1986
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Title:
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COMPENSATOR FOR EARTH BORING BITS
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Patent #:
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Issue Dt:
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03/01/1988
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Application #:
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06927789
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Filing Dt:
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11/05/1986
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Title:
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COMPENSATOR FOR EARTH BORING BITS
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Patent #:
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Issue Dt:
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12/27/1988
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Application #:
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06935428
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Filing Dt:
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11/26/1986
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Title:
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DRILL BIT WITH COVERED RING NOZZLE RETAINER
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Patent #:
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Issue Dt:
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12/27/1988
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Application #:
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06935428
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Filing Dt:
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11/26/1986
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Title:
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DRILL BIT WITH COVERED RING NOZZLE RETAINER
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Patent #:
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Issue Dt:
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10/06/1987
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Application #:
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06943338
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Filing Dt:
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12/17/1986
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Title:
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SURFACE ACOUSTIC WAVE PIPE IDENTIFICATION SYSTEM
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Patent #:
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Issue Dt:
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10/06/1987
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Application #:
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06943338
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Filing Dt:
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12/17/1986
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Title:
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SURFACE ACOUSTIC WAVE PIPE IDENTIFICATION SYSTEM
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Patent #:
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Issue Dt:
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11/29/1988
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Application #:
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07001286
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Filing Dt:
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01/08/1987
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Title:
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WELL BORE DATA TRANSMISSION SYSTEM
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Patent #:
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Issue Dt:
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11/29/1988
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Application #:
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07001286
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Filing Dt:
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01/08/1987
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Title:
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WELL BORE DATA TRANSMISSION SYSTEM
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Patent #:
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|
Issue Dt:
|
06/28/1988
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Application #:
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07023170
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Filing Dt:
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03/09/1987
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Title:
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EARTH BORING BIT WITH TWO PIECE BEARING AND RIGID FACE SEAL ASSEMBLY
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Patent #:
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|
Issue Dt:
|
06/28/1988
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Application #:
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07023170
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Filing Dt:
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03/09/1987
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|
Title:
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EARTH BORING BIT WITH TWO PIECE BEARING AND RIGID FACE SEAL ASSEMBLY
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Patent #:
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|
Issue Dt:
|
06/28/1988
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Application #:
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07023178
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Filing Dt:
|
03/09/1987
|
|
Title:
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VOLUME AND PRESSURE BALANCED RIGID FACE SEAL FOR ROCK BITS
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Patent #:
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|
Issue Dt:
|
06/28/1988
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Application #:
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07023178
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Filing Dt:
|
03/09/1987
|
|
Title:
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VOLUME AND PRESSURE BALANCED RIGID FACE SEAL FOR ROCK BITS
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Patent #:
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|
Issue Dt:
|
05/03/1988
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Application #:
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07040381
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Filing Dt:
|
04/20/1987
|
|
Title:
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METHOD FOR MANUFACTURING A ROTARY ROCK BIT
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Patent #:
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|
Issue Dt:
|
05/03/1988
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Application #:
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07040381
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Filing Dt:
|
04/20/1987
|
|
Title:
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METHOD FOR MANUFACTURING A ROTARY ROCK BIT
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|
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Patent #:
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|
Issue Dt:
|
12/22/1987
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Application #:
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07042546
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Filing Dt:
|
04/23/1987
|
|
Title:
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DIAMOND DRILL BIT WITH CO-JOINED CUTTERS
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Patent #:
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|
Issue Dt:
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12/22/1987
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Application #:
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07042546
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Filing Dt:
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04/23/1987
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Title:
|
DIAMOND DRILL BIT WITH CO-JOINED CUTTERS
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Patent #:
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|
Issue Dt:
|
11/03/1987
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Application #:
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07046204
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Filing Dt:
|
05/04/1987
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Title:
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EARTH BORING BIT HAVING A REPLACEABLE, THREADED NOZZLE WITH WRENCH SOCKET
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Patent #:
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Issue Dt:
|
11/03/1987
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Application #:
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07046204
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Filing Dt:
|
05/04/1987
|
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Title:
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EARTH BORING BIT HAVING A REPLACEABLE, THREADED NOZZLE WITH WRENCH SOCKET
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Patent #:
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|
Issue Dt:
|
07/26/1988
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Application #:
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07063727
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Filing Dt:
|
06/15/1987
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|
Title:
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ROCK BIT WITH IMPROVED EXTENDED NOZZLE
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|
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Patent #:
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|
Issue Dt:
|
07/26/1988
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Application #:
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07063727
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Filing Dt:
|
06/15/1987
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|
Title:
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ROCK BIT WITH IMPROVED EXTENDED NOZZLE
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Patent #:
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|
Issue Dt:
|
02/23/1988
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Application #:
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07072315
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Filing Dt:
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07/13/1987
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Title:
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DIFFERENTIALLY HARDFACED ROCK BIT
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Patent #:
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|
Issue Dt:
|
02/23/1988
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Application #:
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07072315
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Filing Dt:
|
07/13/1987
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Title:
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DIFFERENTIALLY HARDFACED ROCK BIT
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Patent #:
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|
Issue Dt:
|
02/23/1988
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Application #:
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07072315
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Filing Dt:
|
07/13/1987
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Title:
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DIFFERENTIALLY HARDFACED ROCK BIT
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Patent #:
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|
Issue Dt:
|
10/04/1988
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Application #:
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07102173
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Filing Dt:
|
09/29/1987
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|
Title:
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DOWNHOLE PRESSURE FLUCTUATING FEEDBACK SYSTEM
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Patent #:
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|
Issue Dt:
|
10/04/1988
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Application #:
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07102173
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Filing Dt:
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09/29/1987
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Title:
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DOWNHOLE PRESSURE FLUCTUATING FEEDBACK SYSTEM
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Patent #:
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|
Issue Dt:
|
07/04/1989
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Application #:
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07117180
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Filing Dt:
|
11/04/1987
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Title:
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WELL BORE DATA TRANSMISSION SYSTEM WITH BATTERY PRESERVING SWITCH
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Patent #:
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|
Issue Dt:
|
07/04/1989
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Application #:
|
07117180
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Filing Dt:
|
11/04/1987
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|
Title:
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WELL BORE DATA TRANSMISSION SYSTEM WITH BATTERY PRESERVING SWITCH
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Patent #:
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|
Issue Dt:
|
04/03/1990
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Application #:
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07183572
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Filing Dt:
|
04/19/1988
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Title:
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CONDUCTOR SYSTEM FOR WELL BORE DATA TRANSMISSION
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Patent #:
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|
Issue Dt:
|
04/03/1990
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Application #:
|
07183572
|
Filing Dt:
|
04/19/1988
|
|
Title:
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CONDUCTOR SYSTEM FOR WELL BORE DATA TRANSMISSION
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|
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Patent #:
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|
Issue Dt:
|
09/12/1989
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Application #:
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07201249
|
Filing Dt:
|
06/02/1988
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|
Title:
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METHOD FOR MANUFACTURING A ROTARY ROCK BIT WITH IMPROVED WELD ROOT GEOMETRY
|
|
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|
Patent #:
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|
Issue Dt:
|
09/12/1989
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Application #:
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07201249
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Filing Dt:
|
06/02/1988
|
|
Title:
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METHOD FOR MANUFACTURING A ROTARY ROCK BIT WITH IMPROVED WELD ROOT GEOMETRY
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
05/08/1990
|
Application #:
|
07210681
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Filing Dt:
|
06/23/1988
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|
Title:
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ROCK BIT WITH RIGID FACE SEALS AND RECESSED ENERGIZERS
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|
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Patent #:
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|
Issue Dt:
|
05/08/1990
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Application #:
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07210681
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Filing Dt:
|
06/23/1988
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Title:
|
ROCK BIT WITH RIGID FACE SEALS AND RECESSED ENERGIZERS
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
02/27/1990
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Application #:
|
07210682
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Filing Dt:
|
06/23/1988
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|
Title:
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EARTH BORING BIT WITH IMPROVED TWO PIECE BEARING AND SEAL ASSEMBLY
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|
|
|
|
Patent #:
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|
Issue Dt:
|
02/27/1990
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Application #:
|
07210682
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Filing Dt:
|
06/23/1988
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Title:
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EARTH BORING BIT WITH IMPROVED TWO PIECE BEARING AND SEAL ASSEMBLY
|
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|
|
Patent #:
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|
Issue Dt:
|
12/19/1989
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Application #:
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07231632
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Filing Dt:
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08/08/1988
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Title:
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EARTH BORING BIT WITH PIN MOUNTED COMPENSATOR
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Patent #:
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Issue Dt:
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12/19/1989
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Application #:
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07231632
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Filing Dt:
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08/08/1988
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Title:
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EARTH BORING BIT WITH PIN MOUNTED COMPENSATOR
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Patent #:
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Issue Dt:
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Application #:
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UNAVAILABLE
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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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Application #:
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UNAVAILABLE
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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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Application #:
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UNAVAILABLE
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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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Application #:
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UNAVAILABLE
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