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04826542
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04863659
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05003971
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01/09/1973
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05094399
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12/02/1970
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Title:
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DIAMOND DRILL BITS
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05125138
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03/18/1975
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05219973
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01/24/1972
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Title:
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ABRASIVE PARTICLES ENCAPSULATED WITH A METAL ENVELOPE OF ALLOTRIOMORPH IC DENTRITES
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05220351
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07/23/1974
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05222826
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Filing Dt:
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02/02/1972
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Title:
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DRILL BIT AND STABILIZER COMBINATION
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05283474
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05283475
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05304224
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05430077
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05433142
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05532745
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05597478
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05650897
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Title:
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03/14/1978
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Application #:
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05664745
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Filing Dt:
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03/08/1976
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Title:
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METHOD OF AND APPARATUS FOR TELEMETERING INFORMATION FROM A POINT IN A WELL BOREHOLE TO THE EARTH'S SURFACE
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Patent #:
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Issue Dt:
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06/06/1978
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Application #:
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05736728
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Filing Dt:
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10/29/1976
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Title:
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APPARATUS FOR MAKING-UP AND BREAKING THREADED PIPE CONNECTIONS
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Patent #:
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Issue Dt:
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02/14/1978
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Application #:
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05745087
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Filing Dt:
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11/26/1976
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Title:
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EARTH-BORING DRILL BITS
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Patent #:
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Application #:
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05762624
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Filing Dt:
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Title:
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Patent #:
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01/09/1979
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Application #:
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05820211
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Filing Dt:
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07/29/1977
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Title:
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SHOCK ABSORBER FOR WELL DRILLING PIPE
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Patent #:
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Issue Dt:
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02/05/1980
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Application #:
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05879237
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Filing Dt:
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02/21/1978
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Title:
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DUAL SPRING DRILL STRING SHOCK ABSORBER
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Patent #:
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Application #:
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05900428
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Title:
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01/13/1981
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Application #:
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05913571
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Filing Dt:
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06/08/1978
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Title:
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EARTH-BORING DRILL BITS
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Patent #:
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Issue Dt:
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11/18/1980
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Application #:
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05914449
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Filing Dt:
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06/12/1978
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Title:
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DRILL BITS EMBODYING IMPREGNATED SEGMENTS
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Patent #:
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Issue Dt:
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03/25/1980
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Application #:
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05919790
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Filing Dt:
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06/28/1978
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Title:
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DOUBLE ACTING SHOCK ABSORBERS FOR DRILL STRINGS
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Patent #:
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Issue Dt:
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05/12/1981
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Application #:
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05933469
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Filing Dt:
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08/14/1978
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Title:
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WELL CASING WINDOW MILL
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Patent #:
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Issue Dt:
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06/02/1981
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Application #:
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05951344
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Filing Dt:
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10/16/1978
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Title:
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VALVE ASSEMBLY FOR THE REMOTE CONTROL OF FLUID FLOW HAVING AN AUTOMATIC TIME DELAY
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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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06012667
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Filing Dt:
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02/16/1979
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Title:
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COMBINED STABILIZER AND REAMER FOR DRILLING WELL BORES
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Patent #:
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Issue Dt:
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02/24/1981
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Application #:
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06031483
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Filing Dt:
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04/19/1979
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Title:
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CUTTING ELEMENT FOR PROCESSING ROCKS, METAL OR THE LIKE
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Patent #:
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Issue Dt:
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01/20/1981
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Application #:
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06033988
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Filing Dt:
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04/27/1979
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Title:
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REMOVABLE DRILL STRING STABILIZERS
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Patent #:
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Issue Dt:
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03/17/1981
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Application #:
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06055471
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Filing Dt:
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07/06/1979
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Title:
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PRESSURE CORE BARREL
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Patent #:
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Issue Dt:
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05/05/1981
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Application #:
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06075352
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Filing Dt:
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09/13/1979
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Title:
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DIRECT BIT DRIVE FOR DEEP DRILLING TOOLS
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Patent #:
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Issue Dt:
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07/28/1987
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Application #:
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06092087
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Filing Dt:
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11/06/1979
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Title:
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METHOD OF AND APPARATUS FOR TELEMETERING INFORMATION FROM A POINT IN A WELL BOREHOLE TO THE EARTH S SURFACE
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Patent #:
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Issue Dt:
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06/16/1981
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Application #:
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06099670
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Filing Dt:
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12/03/1979
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Title:
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PRESSURE CORE BARREL FLUSHING SYSTEM
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Patent #:
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Issue Dt:
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07/14/1981
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Application #:
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06113497
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Filing Dt:
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01/21/1980
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Title:
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COMPOSITE HEAVY METAL DRILL COLLAR
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Patent #:
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Issue Dt:
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01/12/1982
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Application #:
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06113681
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Filing Dt:
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01/21/1980
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Title:
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COMPOSITE HEAVY METAL DRILL COLLAR
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Patent #:
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Issue Dt:
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02/15/1983
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Application #:
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06128998
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Filing Dt:
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03/10/1980
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Title:
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DRILL BIT
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Patent #:
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Issue Dt:
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09/28/1982
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Application #:
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06159181
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Filing Dt:
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06/13/1980
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Title:
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EARTH-BORING DRILL BITS
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Patent #:
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Issue Dt:
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11/02/1982
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Application #:
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06179587
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Filing Dt:
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08/21/1980
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Title:
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DOWNHOLE CORE BARREL FLUSHING SYSTEM
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Patent #:
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Issue Dt:
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06/29/1982
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Application #:
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06186774
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Filing Dt:
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09/12/1980
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Title:
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INTERNAL FLUID SCREEN TO PREVENT NOZZLE AND PORT PLUGGING
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Patent #:
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Issue Dt:
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03/25/1986
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Application #:
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06187011
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Filing Dt:
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09/15/1980
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Title:
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BEARING SYSTEM FOR A DOWNHOLE MOTOR
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Patent #:
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Issue Dt:
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11/30/1982
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Application #:
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06192280
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Filing Dt:
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09/30/1980
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Title:
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BEARING SYSTEM FOR A DOWNHOLE MOTOR
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Patent #:
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Issue Dt:
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10/05/1982
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Application #:
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06211884
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Filing Dt:
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12/01/1980
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Title:
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DRILL BIT
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Patent #:
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Issue Dt:
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11/15/1983
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Application #:
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06258143
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Filing Dt:
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04/27/1981
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Title:
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DOWN HOLE MOTOR
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Patent #:
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Issue Dt:
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07/05/1983
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Application #:
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06265716
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Filing Dt:
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05/20/1981
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Title:
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DRILL STRING SAFETY VALVE
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Patent #:
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Issue Dt:
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02/03/1987
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Application #:
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06280614
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Filing Dt:
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07/06/1981
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Title:
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PROCESS AND DEVICE FOR TRANSMITTING INFORMATION OVER A DISTANCE
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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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06289332
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Filing Dt:
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08/03/1981
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Title:
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TELEMETRY EQUIPMENT IN MODULES
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Patent #:
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Issue Dt:
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11/15/1983
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Application #:
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06289683
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Filing Dt:
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08/03/1981
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Title:
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GENERATOR FOR THE PRODUCTION OF ELECTRICAL ENERGY
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Patent #:
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Issue Dt:
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07/17/1984
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Application #:
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06292778
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Filing Dt:
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08/14/1981
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Title:
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DRILL TOOL FOR DEEP WELLS
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Patent #:
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Issue Dt:
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02/07/1984
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Application #:
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06310571
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Filing Dt:
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10/13/1981
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Title:
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SELF POWERED DOWNHOLE TOOL ANCHOR
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Patent #:
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Issue Dt:
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06/05/1984
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Application #:
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06312563
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Filing Dt:
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10/19/1981
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Title:
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ROTARY DRILL BIT
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Patent #:
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Issue Dt:
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02/12/1985
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Application #:
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06358079
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Filing Dt:
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03/15/1982
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Title:
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CUTTING MEMBER FOR ROTARY DRILL BIT
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Patent #:
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Issue Dt:
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04/03/1984
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Application #:
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06361305
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Filing Dt:
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03/24/1982
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Title:
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CUTTING MEMBER FOR ROTARY DRILL BITS
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Patent #:
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Issue Dt:
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09/18/1984
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Application #:
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06361669
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Filing Dt:
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03/25/1982
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Title:
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ROTARY DRILL BIT
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Patent #:
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Issue Dt:
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02/12/1985
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Application #:
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06361704
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Filing Dt:
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03/25/1982
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Title:
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APPARATUS FOR TRANSMITTING DATA FROM A BOREHOLE TO THE SURFACE OF THE EARTH DURING THE OPERATION OF A DRILLING DEVICE
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Patent #:
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Issue Dt:
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06/05/1984
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Application #:
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06377740
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Filing Dt:
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05/13/1982
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Title:
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DRILLING DEVICE FOR DRILLING A CORE IN DEEP DRILL HOLES
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Patent #:
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Issue Dt:
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08/07/1984
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Application #:
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06410751
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Filing Dt:
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08/23/1982
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Title:
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MECHANICAL JARRING TOOL
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Patent #:
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Issue Dt:
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07/09/1985
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Application #:
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06420794
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Filing Dt:
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09/21/1982
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Title:
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EARTH-BORING DRILL BIT - WITH RECTANGULAR NOZZLES
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Patent #:
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Issue Dt:
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04/23/1985
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Application #:
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06468662
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Filing Dt:
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02/22/1983
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Title:
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UP DRILL SUB FOR USE IN ROTARY DRILLING
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Patent #:
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Issue Dt:
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07/16/1985
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Application #:
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06469209
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Filing Dt:
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02/24/1983
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Title:
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CUTTING TOOTH AND A ROTATING BIT HAVING A FULLY EXPOSED POLYCRYSTALLINE DIAMOND ELEMENT
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Patent #:
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Issue Dt:
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11/05/1985
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Application #:
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06470507
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Filing Dt:
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02/28/1983
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Title:
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DIAMOND ROTATING BIT
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Patent #:
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Issue Dt:
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01/01/1985
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Application #:
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06473020
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Filing Dt:
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03/07/1983
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Title:
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DIAMOND CUTTING ELEMENT IN A ROTATING BIT
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Patent #:
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Issue Dt:
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05/07/1985
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Application #:
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06473021
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Filing Dt:
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03/07/1983
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Title:
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TOOTH DESIGN TO AVOID SHEARING STRESSES
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Patent #:
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Issue Dt:
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02/19/1985
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Application #:
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06475168
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Filing Dt:
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03/14/1983
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Title:
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TOOTH CONFIGURATION FOR AN EARTH BORING BIT
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Patent #:
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Issue Dt:
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04/23/1985
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Application #:
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06483896
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Filing Dt:
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04/11/1983
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Title:
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ROTATING BITS INCLUDING A PLURALITY OF TYPES OF PREFERENTIAL CUTTING ELEMENTS
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Patent #:
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Issue Dt:
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05/07/1985
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Application #:
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06489197
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Filing Dt:
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04/27/1983
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Title:
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NOZZLE PLACEMENT IN A DIAMOND ROTATING BIT INCLUDING A PILOT BIT
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Patent #:
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Issue Dt:
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05/06/1986
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Application #:
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06496611
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Filing Dt:
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05/20/1983
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Title:
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CUTTER CONFIGURATION FOR A GAGE-TO-SHOULDER TRANSITION AND FACE PATTERN
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Patent #:
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Issue Dt:
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11/13/1984
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Application #:
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06497302
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Filing Dt:
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05/23/1983
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Title:
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MECHANICAL WIRELINE BOREHOLE PACKER
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Patent #:
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Issue Dt:
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12/04/1984
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Application #:
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06519296
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Filing Dt:
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08/01/1983
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Title:
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DIRECT DRIVE FOR DEEP-WELL DRILLING
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Patent #:
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Issue Dt:
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05/28/1985
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Application #:
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06519422
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Filing Dt:
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08/01/1983
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Title:
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AUXILIARY CONTROLLED VALVE DISPOSED IN A DRILLING STRING
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Patent #:
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Issue Dt:
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04/16/1985
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Application #:
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06521877
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Filing Dt:
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08/10/1983
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Title:
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LOCKING DEVICE FOR A TOOL WITH TELESCOPICALLY DISPLACEABLE PARTS
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Patent #:
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Issue Dt:
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02/05/1985
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Application #:
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06522123
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Filing Dt:
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08/11/1983
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Title:
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APPARATUS FOR MAKING AND BREAKING SCREW COUPLINGS
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Patent #:
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Issue Dt:
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11/12/1985
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Application #:
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06529407
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Filing Dt:
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09/06/1983
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Title:
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ROTATING PILOT CORE BIT FOR USE IN HIGHLY FRACTURED FORMATIONS
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Patent #:
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Issue Dt:
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11/19/1985
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Application #:
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06530492
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Filing Dt:
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09/09/1983
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Title:
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HYDRAULIC LIFT INNER BARREL IN A DRILL STRING CORING TOOL
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Patent #:
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Issue Dt:
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11/12/1985
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Application #:
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06530520
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Filing Dt:
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09/09/1983
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Title:
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EXTERNALLY POWERED CORE CATCHER
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Patent #:
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Issue Dt:
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04/23/1985
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Application #:
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06530783
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Filing Dt:
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09/09/1983
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Title:
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CORING DEVICE WITH AN IMPROVED WEIGHTED CORE SLEEVE AND ANTI-GRIPPING COLLAR
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Patent #:
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Issue Dt:
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04/23/1985
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Application #:
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06530784
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Filing Dt:
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09/09/1983
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Title:
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CORING DEVICE WITH AN IMPROVED CORE SLEEVE AND ANTI-GRIPPING COLLAR
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Patent #:
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Issue Dt:
|
01/28/1986
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Application #:
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06537115
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Filing Dt:
|
09/29/1983
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Title:
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CORING DEVICE WITH AN IMPROVED CORE SLEEVE AND ANTI-GRIPPING COLLAR WITH A COLLECTIVE CORE CATCHER
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|
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Patent #:
|
|
Issue Dt:
|
03/04/1986
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Application #:
|
06539924
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Filing Dt:
|
10/07/1983
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|
Title:
|
HYDRAULICALLY PULSED INDEXING SYSTEM FOR SLEEVE-TYPE CORE BARRELS
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|
|
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Patent #:
|
|
Issue Dt:
|
12/17/1985
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Application #:
|
06542386
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Filing Dt:
|
10/17/1983
|
|
Title:
|
ANTI-JAMMING CORE BARRELS
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|
|
|
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Patent #:
|
|
Issue Dt:
|
04/08/1986
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Application #:
|
06544265
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Filing Dt:
|
10/21/1983
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|
Title:
|
PRESSURIZED GAS ACTIVATED PIPE WIPER AND SLUGGING TOOL
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|
|
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Patent #:
|
|
Issue Dt:
|
02/04/1986
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Application #:
|
06557431
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Filing Dt:
|
12/02/1983
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|
Title:
|
REPLACEABLE NOZZLES FOR INSERTION INTO A DRILLING BIT FORMED BY POWDER METALLURGICAL TECHNIQUES AND A METHOD FOR MANUFACTURING THE SAME
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|
|
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Patent #:
|
|
Issue Dt:
|
08/27/1985
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Application #:
|
06566607
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Filing Dt:
|
12/29/1983
|
|
Title:
|
METHOD AND APPARATUS FOR MANUFACTURING CUTTING ELEMENTS PARTICULARLY FOR DEEP DRILLING
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|
|
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|
Patent #:
|
|
Issue Dt:
|
11/19/1985
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Application #:
|
06585812
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Filing Dt:
|
03/02/1984
|
|
Title:
|
COMPENSATION DEVICE FOR INSERTION IN A DRILL STRING FOR DEEP-WELL DRILLING TOOLS
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
06/18/1985
|
Application #:
|
06604242
|
Filing Dt:
|
04/26/1984
|
|
Title:
|
HIGH PRESSURE SEALING MEANS FOR LONGITUDINALLY MOVABLE PARTS OF DEEP- WELL DRILLING TOOLS
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
02/05/1985
|
Application #:
|
06609527
|
Filing Dt:
|
05/14/1984
|
|
Title:
|
UNDERCUTTING DEVICE FOR ANCHOR HOLES
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
02/27/1990
|
Application #:
|
06622548
|
Filing Dt:
|
06/20/1984
|
|
Title:
|
UNIVERSAL BALL JOINT
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|
|
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|
Patent #:
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|
Issue Dt:
|
08/26/1986
|
Application #:
|
06623352
|
Filing Dt:
|
06/22/1984
|
|
Title:
|
METHOD OF FORMING A DIAMOND TOOTH INSERT FOR A DRILL BIT AND A DIAMOND CUTTING ELEMENT FORMED THEREBY
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|
|
|
|
Patent #:
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|
Issue Dt:
|
08/05/1986
|
Application #:
|
06644855
|
Filing Dt:
|
08/27/1984
|
|
Title:
|
APPARATUS FOR DOWNWARD DISPLACEMENT OF AN INNER TUBE WITHIN A CORING BARREL
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
08/12/1986
|
Application #:
|
06646576
|
Filing Dt:
|
08/31/1984
|
|
Title:
|
SHROUDED CORE CATCHER
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
08/19/1986
|
Application #:
|
06646577
|
Filing Dt:
|
08/31/1984
|
|
Title:
|
SELF ACTIVATING, POSITIVELY DRIVEN CONCEALED CORE CATCHER
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
08/26/1986
|
Application #:
|
06646578
|
Filing Dt:
|
08/31/1984
|
|
Title:
|
CAMMED AND SHROUDED CORE CATCHER
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
04/08/1986
|
Application #:
|
06648959
|
Filing Dt:
|
09/10/1984
|
|
Title:
|
ADJUSTABLE BEARING SECTION CORE BARREL
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|
|
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|
Patent #:
|
|
Issue Dt:
|
03/24/1987
|
Application #:
|
06655769
|
Filing Dt:
|
10/01/1984
|
|
Title:
|
CORE CATCHER FOR USE WITH AN HYDRAULICALLY DISPLACED INNER TUBE IN A CORING TOOL
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|
|
|
|
Patent #:
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|
Issue Dt:
|
02/17/1987
|
Application #:
|
06707895
|
Filing Dt:
|
03/04/1985
|
|
Title:
|
CORE BARREL APPARATUS FOR DISPOSING A CORE WITHIN A THIN, FLEXIBLE FILM CASING
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|
|
|
|
Patent #:
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|
Issue Dt:
|
09/30/1986
|
Application #:
|
06711692
|
Filing Dt:
|
03/14/1985
|
|
Title:
|
DEVICE FOR DELIVERING FLOWABLE MATERIAL
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|
|
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|
Patent #:
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|
Issue Dt:
|
01/13/1987
|
Application #:
|
06720237
|
Filing Dt:
|
04/05/1985
|
|
Title:
|
DRILL BIT
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
05/12/1987
|
Application #:
|
06721993
|
Filing Dt:
|
04/11/1985
|
|
Title:
|
HYDRAULIC INNER BARREL IN A DRILL STRING CORING TOOL
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|
