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Total properties:
31
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Patent #:
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Issue Dt:
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Application #:
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05731596
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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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02/06/1979
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Application #:
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05768040
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Filing Dt:
|
02/14/1977
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Title:
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CONTROL VALVE
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Patent #:
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Issue Dt:
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Application #:
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05933269
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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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11/04/1980
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Application #:
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05958458
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Filing Dt:
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11/06/1978
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Title:
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ECCENTRIC SHAFT AND METHOD OF MAKING A SHAFT
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Patent #:
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Issue Dt:
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03/06/1984
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Application #:
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06233561
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Filing Dt:
|
02/11/1981
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Title:
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DRILLING RIG DRAWWORKS HOOK LOAD OVERSPEED PREVENTING SYSTEM
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Patent #:
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Issue Dt:
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10/11/1983
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Application #:
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06393192
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Filing Dt:
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06/28/1982
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Title:
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ALLOY STEEL FOR ROLL CASTER SHELL
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Patent #:
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Issue Dt:
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08/28/1984
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Application #:
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06411932
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Filing Dt:
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08/26/1982
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Title:
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IMPROVED RECIPROCABLE PUMP
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Patent #:
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Issue Dt:
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06/11/1985
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Application #:
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06489116
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Filing Dt:
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04/27/1983
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Title:
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BRAKE SYSTEM
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Patent #:
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Issue Dt:
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12/11/1984
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Application #:
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06491282
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Filing Dt:
|
05/03/1983
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Title:
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POPPET TYPE FLUID VALVE WITH REPLACEABLE WEAR SURFACE
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Patent #:
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Issue Dt:
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12/09/1986
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Application #:
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06594795
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Filing Dt:
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03/29/1984
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Title:
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HYDRAULIC DISK BRAKE HAVING A BRAKING TORQUE-TO-HYDRAULIC FORCE CONVERTER
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Patent #:
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Issue Dt:
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04/30/1985
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Application #:
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06611116
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Filing Dt:
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05/17/1984
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Title:
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PEDESTAL CRANE MOUNTING SYSTEM
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Patent #:
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Issue Dt:
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07/22/1986
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Application #:
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06621832
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Filing Dt:
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06/18/1984
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Title:
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RECIPROCATING PUMP PISTON
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Patent #:
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Issue Dt:
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04/29/1986
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Application #:
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06638426
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Filing Dt:
|
08/07/1984
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Title:
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WELL DERRICK
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|
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Patent #:
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Issue Dt:
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03/31/1987
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Application #:
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06655215
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Filing Dt:
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09/27/1984
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Title:
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BOOM CRANE CENTERING
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|
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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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06666186
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Filing Dt:
|
10/29/1984
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Title:
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LOAD RECALL VALVE
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Patent #:
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Issue Dt:
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02/04/1986
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Application #:
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06678955
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Filing Dt:
|
12/06/1984
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Title:
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CARBURIZED HIGH CHROME LINER
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|
|
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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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06780007
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Filing Dt:
|
09/25/1985
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Title:
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OVERLOAD PROTECTION SYSTEM FOR A CRANE
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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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06875253
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Filing Dt:
|
06/17/1986
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Title:
|
UNITIZED CHECK VALVE
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|
|
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Patent #:
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|
Issue Dt:
|
01/05/1988
|
Application #:
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07011576
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Filing Dt:
|
02/06/1987
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Title:
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ROTARY DRIVE APPARATUS FOR DOWNHOLE PUMP
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|
|
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Patent #:
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Issue Dt:
|
03/22/1988
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Application #:
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07023384
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Filing Dt:
|
03/09/1987
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|
Title:
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POWER TONGS AND CLAMPING UNITS THEREFOR
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|
|
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Patent #:
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Issue Dt:
|
07/04/1989
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Application #:
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07023385
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Filing Dt:
|
03/09/1987
|
|
Title:
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APPARATUS FOR MAKING AND BREAKING THREADED WELL PIPE CONNECTIONS
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|
|
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Patent #:
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Issue Dt:
|
11/08/1988
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Application #:
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07032180
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Filing Dt:
|
03/30/1987
|
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Title:
|
BOOM CRANE CENTERING
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|
|
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Patent #:
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|
Issue Dt:
|
11/01/1988
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Application #:
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07100158
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Filing Dt:
|
09/23/1987
|
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Title:
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SUB ASSEMBLY FOR A SWIVEL
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|
|
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Patent #:
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|
Issue Dt:
|
03/21/1989
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Application #:
|
07163580
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Filing Dt:
|
03/03/1988
|
|
Title:
|
ACTIVE COUNTERBALANCE FOR A POWER SWIVEL DURING WELL DRILLING
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|
|
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Patent #:
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|
Issue Dt:
|
10/31/1989
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Application #:
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07163583
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Filing Dt:
|
03/03/1988
|
|
Title:
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SPRING ACTUATED POWER SWIVEL SUPPORT ROLLERS
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|
|
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Patent #:
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Issue Dt:
|
03/07/1989
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Application #:
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07163584
|
Filing Dt:
|
03/03/1988
|
|
Title:
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SUPPORT SYSTEM FOR A TOP DRIVEN DRILLING UNIT
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|
|
|
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Patent #:
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|
Issue Dt:
|
08/28/1990
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Application #:
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07335725
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Filing Dt:
|
04/10/1989
|
|
Title:
|
SEAL FOR A PUMP VALVE
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|
|
|
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Patent #:
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|
Issue Dt:
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01/01/1991
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Application #:
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07379765
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Filing Dt:
|
07/14/1989
|
|
Title:
|
POSITIVE LOCK OF A DRIVE ASSEMBLY
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|
|
|
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Patent #:
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|
Issue Dt:
|
09/24/1991
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Application #:
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07415841
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Filing Dt:
|
10/02/1989
|
|
Title:
|
LUBRICATION OF A CENTRIFUGAL PUMP BEARING
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|
|
|
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Patent #:
|
|
Issue Dt:
|
08/13/1991
|
Application #:
|
07538634
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Filing Dt:
|
06/13/1990
|
|
Title:
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APPARATUS FOR SUPPORTING A DIRECT DRIVE DRILLING UNIT IN A POSITION OFFSET FROM THE CENTERLINE OF A WELL
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|
|
|
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Patent #:
|
|
Issue Dt:
|
02/04/1997
|
Application #:
|
08507630
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Filing Dt:
|
07/26/1995
|
|
Title:
|
ALLOY STEEL FOR ROLL CASTER SHELL
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