AT302937B
(de)
*
|
1970-06-05 |
1972-11-10 |
Boehler & Co Ag Geb |
Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte
|
US3885638A
(en)
*
|
1973-10-10 |
1975-05-27 |
Sam C Skidmore |
Combination rotary and percussion drill bit
|
US3915246A
(en)
*
|
1974-05-16 |
1975-10-28 |
Adel E Sheshtawy |
Rotary drilling bit
|
US3918538A
(en)
*
|
1974-07-01 |
1975-11-11 |
Hughes Tool Co |
Rotary percussion earth boring bit
|
US3951220A
(en)
*
|
1974-08-19 |
1976-04-20 |
Vance Industries, Inc. |
Archimedes spiral drill bit
|
US3955635A
(en)
*
|
1975-02-03 |
1976-05-11 |
Skidmore Sam C |
Percussion drill bit
|
US4005906A
(en)
*
|
1975-12-15 |
1977-02-01 |
Kennametal Inc. |
Impact or demolition tool
|
GB1583839A
(en)
*
|
1977-06-22 |
1981-02-04 |
Christensen Inc |
Well casing window mill
|
US4266621A
(en)
*
|
1977-06-22 |
1981-05-12 |
Christensen, Inc. |
Well casing window mill
|
DE2749613B2
(de)
*
|
1977-11-05 |
1979-12-20 |
Fried. Krupp Gmbh, 4300 Essen |
Schlagbohrkrone für Gesteinsbohrungen
|
DE2856205A1
(de)
*
|
1978-12-27 |
1980-07-10 |
Hilti Ag |
Gesteinsbohrer
|
DE3510048C1
(de)
*
|
1985-03-20 |
1986-04-10 |
Siegfried 5883 Kierspe Treitz |
Schlagbohrkrone fuer Gesteinsbohrmaschinen
|
DE3519592C2
(de)
*
|
1985-05-31 |
1995-01-05 |
Klemm Bohrtech |
Drehschlagbohrkrone
|
SE503325C2
(sv)
*
|
1990-03-26 |
1996-05-28 |
Sandvik Ab |
Borrkrona
|
US5099929A
(en)
*
|
1990-05-04 |
1992-03-31 |
Dresser Industries, Inc. |
Unbalanced PDC drill bit with right hand walk tendencies, and method of drilling right hand bore holes
|
SE508490C2
(sv)
*
|
1996-03-14 |
1998-10-12 |
Sandvik Ab |
Bergborrkrona för slående borrning
|
US6918455B2
(en)
*
|
1997-06-30 |
2005-07-19 |
Smith International |
Drill bit with large inserts
|
GB2366585A
(en)
*
|
1997-06-30 |
2002-03-13 |
Smith International |
Improvements in or relating to drill bits
|
US7617886B2
(en)
|
2005-11-21 |
2009-11-17 |
Hall David R |
Fluid-actuated hammer bit
|
US7591327B2
(en)
*
|
2005-11-21 |
2009-09-22 |
Hall David R |
Drilling at a resonant frequency
|
US8130117B2
(en)
*
|
2006-03-23 |
2012-03-06 |
Schlumberger Technology Corporation |
Drill bit with an electrically isolated transmitter
|
US7533737B2
(en)
*
|
2005-11-21 |
2009-05-19 |
Hall David R |
Jet arrangement for a downhole drill bit
|
US7641002B2
(en)
*
|
2005-11-21 |
2010-01-05 |
Hall David R |
Drill bit
|
US8297375B2
(en)
*
|
2005-11-21 |
2012-10-30 |
Schlumberger Technology Corporation |
Downhole turbine
|
US8528664B2
(en)
|
2005-11-21 |
2013-09-10 |
Schlumberger Technology Corporation |
Downhole mechanism
|
US8205688B2
(en)
*
|
2005-11-21 |
2012-06-26 |
Hall David R |
Lead the bit rotary steerable system
|
US7497279B2
(en)
*
|
2005-11-21 |
2009-03-03 |
Hall David R |
Jack element adapted to rotate independent of a drill bit
|
US7419018B2
(en)
|
2006-11-01 |
2008-09-02 |
Hall David R |
Cam assembly in a downhole component
|
US7753144B2
(en)
*
|
2005-11-21 |
2010-07-13 |
Schlumberger Technology Corporation |
Drill bit with a retained jack element
|
US7419016B2
(en)
|
2006-03-23 |
2008-09-02 |
Hall David R |
Bi-center drill bit
|
US7484576B2
(en)
|
2006-03-23 |
2009-02-03 |
Hall David R |
Jack element in communication with an electric motor and or generator
|
US7730975B2
(en)
*
|
2005-11-21 |
2010-06-08 |
Schlumberger Technology Corporation |
Drill bit porting system
|
US7559379B2
(en)
*
|
2005-11-21 |
2009-07-14 |
Hall David R |
Downhole steering
|
US7549489B2
(en)
|
2006-03-23 |
2009-06-23 |
Hall David R |
Jack element with a stop-off
|
US7600586B2
(en)
|
2006-12-15 |
2009-10-13 |
Hall David R |
System for steering a drill string
|
US7571780B2
(en)
|
2006-03-24 |
2009-08-11 |
Hall David R |
Jack element for a drill bit
|
US7624824B2
(en)
*
|
2005-12-22 |
2009-12-01 |
Hall David R |
Downhole hammer assembly
|
US8225883B2
(en)
|
2005-11-21 |
2012-07-24 |
Schlumberger Technology Corporation |
Downhole percussive tool with alternating pressure differentials
|
US8360174B2
(en)
|
2006-03-23 |
2013-01-29 |
Schlumberger Technology Corporation |
Lead the bit rotary steerable tool
|
US8297378B2
(en)
|
2005-11-21 |
2012-10-30 |
Schlumberger Technology Corporation |
Turbine driven hammer that oscillates at a constant frequency
|
US8267196B2
(en)
|
2005-11-21 |
2012-09-18 |
Schlumberger Technology Corporation |
Flow guide actuation
|
US8522897B2
(en)
|
2005-11-21 |
2013-09-03 |
Schlumberger Technology Corporation |
Lead the bit rotary steerable tool
|
US8316964B2
(en)
|
2006-03-23 |
2012-11-27 |
Schlumberger Technology Corporation |
Drill bit transducer device
|
US7762353B2
(en)
|
2006-03-23 |
2010-07-27 |
Schlumberger Technology Corporation |
Downhole valve mechanism
|
US7424922B2
(en)
*
|
2005-11-21 |
2008-09-16 |
Hall David R |
Rotary valve for a jack hammer
|
US7900720B2
(en)
|
2006-01-18 |
2011-03-08 |
Schlumberger Technology Corporation |
Downhole drive shaft connection
|
US7694756B2
(en)
|
2006-03-23 |
2010-04-13 |
Hall David R |
Indenting member for a drill bit
|
USD620510S1
(en)
|
2006-03-23 |
2010-07-27 |
Schlumberger Technology Corporation |
Drill bit
|
US7661487B2
(en)
|
2006-03-23 |
2010-02-16 |
Hall David R |
Downhole percussive tool with alternating pressure differentials
|
US8011457B2
(en)
|
2006-03-23 |
2011-09-06 |
Schlumberger Technology Corporation |
Downhole hammer assembly
|
US8622155B2
(en)
|
2006-08-11 |
2014-01-07 |
Schlumberger Technology Corporation |
Pointed diamond working ends on a shear bit
|
US8590644B2
(en)
|
2006-08-11 |
2013-11-26 |
Schlumberger Technology Corporation |
Downhole drill bit
|
US8449040B2
(en)
|
2006-08-11 |
2013-05-28 |
David R. Hall |
Shank for an attack tool
|
US20080035389A1
(en)
*
|
2006-08-11 |
2008-02-14 |
Hall David R |
Roof Mining Drill Bit
|
US8714285B2
(en)
|
2006-08-11 |
2014-05-06 |
Schlumberger Technology Corporation |
Method for drilling with a fixed bladed bit
|
US8292372B2
(en)
|
2007-12-21 |
2012-10-23 |
Hall David R |
Retention for holder shank
|
US9145742B2
(en)
|
2006-08-11 |
2015-09-29 |
Schlumberger Technology Corporation |
Pointed working ends on a drill bit
|
US9051795B2
(en)
|
2006-08-11 |
2015-06-09 |
Schlumberger Technology Corporation |
Downhole drill bit
|
US7886851B2
(en)
*
|
2006-08-11 |
2011-02-15 |
Schlumberger Technology Corporation |
Drill bit nozzle
|
US20100059289A1
(en)
*
|
2006-08-11 |
2010-03-11 |
Hall David R |
Cutting Element with Low Metal Concentration
|
US7669674B2
(en)
|
2006-08-11 |
2010-03-02 |
Hall David R |
Degradation assembly
|
US8616305B2
(en)
*
|
2006-08-11 |
2013-12-31 |
Schlumberger Technology Corporation |
Fixed bladed bit that shifts weight between an indenter and cutting elements
|
US7637574B2
(en)
|
2006-08-11 |
2009-12-29 |
Hall David R |
Pick assembly
|
US8240404B2
(en)
*
|
2006-08-11 |
2012-08-14 |
Hall David R |
Roof bolt bit
|
US8567532B2
(en)
|
2006-08-11 |
2013-10-29 |
Schlumberger Technology Corporation |
Cutting element attached to downhole fixed bladed bit at a positive rake angle
|
US9316061B2
(en)
|
2006-08-11 |
2016-04-19 |
David R. Hall |
High impact resistant degradation element
|
US8201892B2
(en)
|
2006-08-11 |
2012-06-19 |
Hall David R |
Holder assembly
|
US8596381B2
(en)
*
|
2006-08-11 |
2013-12-03 |
David R. Hall |
Sensor on a formation engaging member of a drill bit
|
US8122980B2
(en)
*
|
2007-06-22 |
2012-02-28 |
Schlumberger Technology Corporation |
Rotary drag bit with pointed cutting elements
|
US8215420B2
(en)
|
2006-08-11 |
2012-07-10 |
Schlumberger Technology Corporation |
Thermally stable pointed diamond with increased impact resistance
|
US7527110B2
(en)
|
2006-10-13 |
2009-05-05 |
Hall David R |
Percussive drill bit
|
US9068410B2
(en)
|
2006-10-26 |
2015-06-30 |
Schlumberger Technology Corporation |
Dense diamond body
|
US8960337B2
(en)
|
2006-10-26 |
2015-02-24 |
Schlumberger Technology Corporation |
High impact resistant tool with an apex width between a first and second transitions
|
US7954401B2
(en)
*
|
2006-10-27 |
2011-06-07 |
Schlumberger Technology Corporation |
Method of assembling a drill bit with a jack element
|
US7392857B1
(en)
|
2007-01-03 |
2008-07-01 |
Hall David R |
Apparatus and method for vibrating a drill bit
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USD674422S1
(en)
|
2007-02-12 |
2013-01-15 |
Hall David R |
Drill bit with a pointed cutting element and a shearing cutting element
|
US8839888B2
(en)
|
2010-04-23 |
2014-09-23 |
Schlumberger Technology Corporation |
Tracking shearing cutters on a fixed bladed drill bit with pointed cutting elements
|
USD678368S1
(en)
|
2007-02-12 |
2013-03-19 |
David R. Hall |
Drill bit with a pointed cutting element
|
US7926883B2
(en)
|
2007-05-15 |
2011-04-19 |
Schlumberger Technology Corporation |
Spring loaded pick
|
US7866416B2
(en)
*
|
2007-06-04 |
2011-01-11 |
Schlumberger Technology Corporation |
Clutch for a jack element
|
US7967083B2
(en)
|
2007-09-06 |
2011-06-28 |
Schlumberger Technology Corporation |
Sensor for determining a position of a jack element
|
US7721826B2
(en)
*
|
2007-09-06 |
2010-05-25 |
Schlumberger Technology Corporation |
Downhole jack assembly sensor
|
US8540037B2
(en)
|
2008-04-30 |
2013-09-24 |
Schlumberger Technology Corporation |
Layered polycrystalline diamond
|
US8322796B2
(en)
|
2009-04-16 |
2012-12-04 |
Schlumberger Technology Corporation |
Seal with contact element for pick shield
|
US8701799B2
(en)
|
2009-04-29 |
2014-04-22 |
Schlumberger Technology Corporation |
Drill bit cutter pocket restitution
|
US8550190B2
(en)
|
2010-04-01 |
2013-10-08 |
David R. Hall |
Inner bit disposed within an outer bit
|
US8418784B2
(en)
|
2010-05-11 |
2013-04-16 |
David R. Hall |
Central cutting region of a drilling head assembly
|
US8820440B2
(en)
|
2010-10-01 |
2014-09-02 |
David R. Hall |
Drill bit steering assembly
|
US8333254B2
(en)
|
2010-10-01 |
2012-12-18 |
Hall David R |
Steering mechanism with a ring disposed about an outer diameter of a drill bit and method for drilling
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US20120234604A1
(en)
|
2011-03-15 |
2012-09-20 |
Hall David R |
Timed Steering Nozzle on a Downhole Drill Bit
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GB2557190B
(en)
*
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2016-11-29 |
2020-09-16 |
Mincon Int Ltd |
Drill bits
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US10494875B2
(en)
*
|
2017-01-13 |
2019-12-03 |
Baker Hughes, A Ge Company, Llc |
Impregnated drill bit including a planar blade profile along drill bit face
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US12024994B1
(en)
|
2023-04-17 |
2024-07-02 |
Saudi Arabian Oil Company |
Hybrid impression block
|