|
Total properties:
20
|
|
|
|
Patent #:
|
|
Issue Dt:
|
|
Application #:
|
05902377
|
Filing Dt:
|
|
|
Title:
|
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
04/17/1984
|
Application #:
|
06281334
|
Filing Dt:
|
07/08/1981
|
|
Title:
|
TOOL FOR DRILLING CURVED SECTIONS OF WELL HOLES
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
11/04/1986
|
Application #:
|
06306290
|
Filing Dt:
|
09/28/1981
|
|
Title:
|
WELL DRILLING TOOL WITH DIAMOND THRUST BEARINGS
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
08/28/1984
|
Application #:
|
06306544
|
Filing Dt:
|
09/28/1981
|
|
Title:
|
MANUFACTURE OF DIAMOND BEARINGS
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
03/08/1988
|
Application #:
|
07049672
|
Filing Dt:
|
05/13/1987
|
|
Title:
|
DOWNHOLE MOTOR AND BEARING ASSEMBLY
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
12/06/1988
|
Application #:
|
07101249
|
Filing Dt:
|
09/25/1987
|
|
Title:
|
ORIENTING AND CIRCULATING SUB
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
05/09/1989
|
Application #:
|
07143005
|
Filing Dt:
|
01/12/1988
|
|
Title:
|
DEVIATED WELLBORE DRILLNG SYSTEM AND APPARATUS
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
02/12/1991
|
Application #:
|
07306050
|
Filing Dt:
|
02/06/1989
|
|
Title:
|
CONTROLLED DIRECTIONAL DRILLING SYSTEM AND METHOD
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
07/03/1990
|
Application #:
|
07315882
|
Filing Dt:
|
02/24/1989
|
|
Title:
|
DIRECTIONAL WELL CONTROL
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
06/26/1990
|
Application #:
|
07328890
|
Filing Dt:
|
03/27/1989
|
|
Title:
|
EARTH DRILLING APPARATUS WITH CONTROL VALVE
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
06/11/1991
|
Application #:
|
07461741
|
Filing Dt:
|
01/08/1990
|
|
Title:
|
DEVIATED WELLBORE DRILLING SYSTEM AND APPARATUS
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
08/06/1991
|
Application #:
|
07544910
|
Filing Dt:
|
06/28/1990
|
|
Title:
|
UNDERREAMER WITH SEQUENTIALLY EXPANDABLE CUTTER BLADES
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
10/29/1991
|
Application #:
|
07586599
|
Filing Dt:
|
09/20/1990
|
|
Title:
|
THREE-BLADE UNDERREAMER
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
08/27/1991
|
Application #:
|
07598583
|
Filing Dt:
|
10/15/1990
|
|
Title:
|
HORIZONTAL DRILLING METHOD AND APPARATUS
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
02/25/1992
|
Application #:
|
07633687
|
Filing Dt:
|
12/26/1990
|
|
Title:
|
UNDERREAMER WITH SIMULTANEOUSLY EXPANDABLE CUTTER BLADES AND METHOD
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
06/30/1992
|
Application #:
|
07636433
|
Filing Dt:
|
12/31/1990
|
|
Title:
|
ADJUSTABLE BENT SUB
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
06/14/1994
|
Application #:
|
07925100
|
Filing Dt:
|
08/06/1992
|
|
Title:
|
STEERING SUB FOR FLEXIBLE DRILLING
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
11/29/1994
|
Application #:
|
08145579
|
Filing Dt:
|
11/04/1993
|
|
Title:
|
APPARATUS FOR ARCUATE DRILLING
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
03/14/1995
|
Application #:
|
08217352
|
Filing Dt:
|
03/24/1994
|
|
Title:
|
STEERING SUB FOR FLEXIBLE DRILLING
|
|
|
|
|
Patent #:
|
|
Issue Dt:
|
12/31/1996
|
Application #:
|
08433544
|
Filing Dt:
|
04/20/1995
|
|
Title:
|
ROTOR-TO-ROTOR COUPLING
|
|
