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Total properties:
15
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Patent #:
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Issue Dt:
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10/21/1997
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Application #:
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08515536
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Filing Dt:
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08/15/1995
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Title:
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IMPROVED BI-CENTER BIT AND METHOD FOR ENHANCING STABILITY
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Patent #:
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Issue Dt:
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09/08/1998
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Application #:
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08655988
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Filing Dt:
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05/31/1996
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Title:
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STABILIZING DRILL BIT
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Patent #:
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Issue Dt:
|
11/30/1999
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Application #:
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08955147
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Filing Dt:
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10/21/1997
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Title:
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BI-CENTER BIT WITH OPPOSITELY DISPOSED CUTTING SURFACES
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Patent #:
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Issue Dt:
|
01/04/2000
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Application #:
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09014116
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Filing Dt:
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01/27/1998
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Title:
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CORING TOOL
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Patent #:
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Issue Dt:
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05/30/2000
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Application #:
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09021012
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Filing Dt:
|
02/09/1998
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Title:
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CUTTING ELEMENT
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Patent #:
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Issue Dt:
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11/07/2000
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Application #:
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09057714
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Filing Dt:
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04/02/1998
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Title:
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REDUCED EROSION NOZZLE SYSTEM AND METHOD FOR THE USE OF DRILL BITS TO REDUCE EROSION
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Patent #:
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Issue Dt:
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02/22/2000
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Application #:
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09129179
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Filing Dt:
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04/16/1998
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Title:
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CUTTING ELEMENT WITH STRESS REDUCTION
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|
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Patent #:
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|
Issue Dt:
|
11/09/1999
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Application #:
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09149196
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Filing Dt:
|
09/08/1998
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Title:
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STABILIZING DRILL BIT WITH IMPROVED CUTTING ELEMENTS
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|
|
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Patent #:
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Issue Dt:
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07/02/2002
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Application #:
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09321362
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Filing Dt:
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05/27/1999
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Publication #:
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Pub Dt:
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11/29/2001
| | | | |
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Title:
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TWO STAGE DRILL BIT
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Patent #:
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Issue Dt:
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11/13/2001
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Application #:
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09391033
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Filing Dt:
|
09/07/1999
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Title:
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CUTTING ELEMENT WITH STRESS REDUCTION
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|
|
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Patent #:
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|
Issue Dt:
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01/22/2002
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Application #:
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09392043
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Filing Dt:
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09/08/1999
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Publication #:
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Pub Dt:
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11/29/2001
| | | | |
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Title:
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BI-CENTER BIT ADAPTED TO DRILL CASING SHOE
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Patent #:
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Issue Dt:
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06/11/2002
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Application #:
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09583488
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Filing Dt:
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05/31/2000
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Title:
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CUTTING ELEMENT WITH STRESS REDUCTION
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|
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Patent #:
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|
Issue Dt:
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10/07/2003
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Application #:
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09969444
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Filing Dt:
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10/02/2001
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Publication #:
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Pub Dt:
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07/18/2002
| | | | |
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Title:
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BI-CENTER BIT ADAPTED TO DRILL CASING SHOE
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|
|
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Patent #:
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|
Issue Dt:
|
07/05/2005
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Application #:
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10301049
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Filing Dt:
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11/21/2002
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Publication #:
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Pub Dt:
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05/27/2004
| | | | |
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Title:
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SUB-REAMER FOR BI-CENTER TYPE TOOLS
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|
|
|
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Patent #:
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Issue Dt:
|
01/31/2006
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Application #:
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10701232
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Filing Dt:
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11/03/2003
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Publication #:
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Pub Dt:
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05/05/2005
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Title:
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EXPANDABLE ECCENTRIC REAMER AND METHOD OF USE IN DRILLING
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