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Total properties:
13
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Patent #:
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Issue Dt:
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04/17/1984
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Application #:
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06281334
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Filing Dt:
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07/08/1981
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Title:
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TOOL FOR DRILLING CURVED SECTIONS OF WELL HOLES
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Patent #:
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Issue Dt:
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12/06/1988
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Application #:
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07101249
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Filing Dt:
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09/25/1987
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Title:
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ORIENTING AND CIRCULATING SUB
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Patent #:
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Issue Dt:
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02/12/1991
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Application #:
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07306050
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Filing Dt:
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02/06/1989
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Title:
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CONTROLLED DIRECTIONAL DRILLING SYSTEM AND METHOD
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Patent #:
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Issue Dt:
|
07/03/1990
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Application #:
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07315882
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Filing Dt:
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02/24/1989
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Title:
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DIRECTIONAL WELL CONTROL
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Patent #:
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Issue Dt:
|
08/06/1991
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Application #:
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07544910
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Filing Dt:
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06/28/1990
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Title:
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UNDERREAMER WITH SEQUENTIALLY EXPANDABLE CUTTER BLADES
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Patent #:
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Issue Dt:
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10/29/1991
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Application #:
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07586599
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Filing Dt:
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09/20/1990
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Title:
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THREE-BLADE UNDERREAMER
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Patent #:
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Issue Dt:
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08/27/1991
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Application #:
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07598583
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Filing Dt:
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10/15/1990
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Title:
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HORIZONTAL DRILLING METHOD AND APPARATUS
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|
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Patent #:
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Issue Dt:
|
02/25/1992
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Application #:
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07633687
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Filing Dt:
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12/26/1990
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Title:
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UNDERREAMER WITH SIMULTANEOUSLY EXPANDABLE CUTTER BLADES AND METHOD
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Patent #:
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|
Issue Dt:
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01/26/1993
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Application #:
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07889888
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Filing Dt:
|
05/29/1992
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Title:
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WELL BORE DATA TRANSMISSION APPARATUS
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Patent #:
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Issue Dt:
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06/14/1994
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Application #:
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07925100
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Filing Dt:
|
08/06/1992
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Title:
|
STEERING SUB FOR FLEXIBLE DRILLING
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|
|
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Patent #:
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Issue Dt:
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11/29/1994
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Application #:
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08145579
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Filing Dt:
|
11/04/1993
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Title:
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APPARATUS FOR ARCUATE DRILLING
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Patent #:
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Issue Dt:
|
03/14/1995
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Application #:
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08217352
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Filing Dt:
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03/24/1994
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Title:
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STEERING SUB FOR FLEXIBLE DRILLING
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|
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Patent #:
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|
Issue Dt:
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12/31/1996
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Application #:
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08433544
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Filing Dt:
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04/20/1995
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Title:
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ROTOR-TO-ROTOR COUPLING
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