| Patents for E21B 10 - Drill bits (19,464) |
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| 06/19/2013 | CN101688434B Rotary drill bit with gage pads having improved steerability and reduced wear |
| 06/18/2013 | US8464814 Systems for manufacturing downhole tools and downhole tool parts |
| 06/18/2013 | US8464813 Cutter assembly for a raise boring reamer |
| 06/18/2013 | US8464812 Remotely controlled apparatus for downhole applications and related methods |
| 06/18/2013 | US8464784 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 06/18/2013 | CA2671444C Restriction element trap for use with and actuation element of a downhole apparatus and method of use |
| 06/13/2013 | WO2013086261A1 Method for forming a cutting element and downhole tools incorporating the same |
| 06/13/2013 | WO2013086072A1 Cutting structures, earth boring tools including such cutting structures, and related methods |
| 06/13/2013 | WO2013085976A1 Methods of improving sintering of pcd using graphene |
| 06/13/2013 | WO2013085869A1 Rotating cutting elements for pdc bits |
| 06/13/2013 | WO2013084994A1 Excavating tool |
| 06/13/2013 | WO2013059063A3 Polycrystalline diamond compacts, related products, and methods of manufacture |
| 06/13/2013 | US20130146370 Earth-boring tools and methods of forming earth-boring tools |
| 06/13/2013 | US20130146369 Diamond bonded construction with thermally stable region |
| 06/13/2013 | US20130146368 Method for forming a cutting element and downhole tools incorporating the same |
| 06/13/2013 | US20130146367 Rolling cutter with improved rolling efficiency |
| 06/13/2013 | US20130146366 Earth-boring tools, methods of forming earth-boring tools, and methods of repairing earth-boring tools |
| 06/13/2013 | US20130146361 Apparatuses and methods for stabilizing downhole tools |
| 06/13/2013 | CA2858145A1 Methods of improving sintering of pcd using graphene |
| 06/13/2013 | CA2857707A1 Method for assessing the performance of a drill bit configuration, and for comparing the performance of different drill bit configurations for drilling similar rock formations |
| 06/12/2013 | EP2601373A2 Shaped cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods |
| 06/12/2013 | DE202010017983U1 Bohrmeisselanordnung für fluidbetriebene Schlagbohrwerkzeuge A bit assembly for fluid-operated Schlagbohrwerkzeuge |
| 06/12/2013 | CN202990897U Ring-shaped drill rod capable of automatically cutting off geographical core column blocks |
| 06/12/2013 | CN202990883U Drill and drilling device |
| 06/12/2013 | CN202990882U Drill bit of piling device |
| 06/12/2013 | CN202990881U Hard-alloy anti-skidding substrate with upper anti-skidding strips |
| 06/12/2013 | CN202990880U Hard-alloy anti-skidding flat tooth with upper anti-skidding strips |
| 06/12/2013 | CN202990879U Antiskid spoon-shaped tooth designed on hard alloy |
| 06/12/2013 | CN202990878U Antiskid wedge-shaped tooth designed on hard alloy |
| 06/12/2013 | CN202990877U Hard alloy antiskid wedge-shaped tooth |
| 06/12/2013 | CN202990876U Antiskid cone-shaped tooth designed under hard alloy |
| 06/12/2013 | CN202990875U Antiskid cone-shaped tooth designed on hard alloy |
| 06/12/2013 | CN202990874U Antiskid sphere tooth designed on hard alloy |
| 06/12/2013 | CN202990873U Unicorn punching drill bit for tree planting |
| 06/12/2013 | CN202990872U Hard alloy anti-skidding conical tooth |
| 06/12/2013 | CN202990871U Hard alloy anti-skidding flat tooth |
| 06/12/2013 | CN202990870U Antiskid spoon-shaped tooth designed under hard alloy |
| 06/12/2013 | CN202990869U Hard alloy antiskid spoon-shaped tooth |
| 06/12/2013 | CN202990868U Antiskid warhead tooth designed under hard alloy |
| 06/12/2013 | CN202990867U Hard alloy antiskid warhead tooth |
| 06/12/2013 | CN202990866U Hard-alloy anti-skidding flat tooth with lower anti-skidding strips |
| 06/12/2013 | CN202990865U Antiskid wedge-shaped tooth designed under hard alloy |
| 06/12/2013 | CN202990864U Antiskid sphere tooth designed under hard alloy |
| 06/12/2013 | CN202990863U Hard alloy antiskid sphere tooth |
| 06/12/2013 | CN202990862U Drilling bit for steerable drilling |
| 06/12/2013 | CN202990861U Hybrid drill bit with strengthened core cutting function |
| 06/12/2013 | CN202990860U Hybrid insert cone bit |
| 06/12/2013 | CN202990859U Sediment-free drill bit |
| 06/12/2013 | CN202990858U One-step formed wall opener |
| 06/12/2013 | CN202990857U Hard alloy anti-skidding substrate |
| 06/12/2013 | CN202990846U Spiral hole forming machine of cast-in-place pile |
| 06/12/2013 | CN103154419A Superhard construction |
| 06/12/2013 | CN103154418A Remotely-controlled downhole device and method for using same |
| 06/12/2013 | CN103147708A Through type down hole hammer reverse circulation drilling dust collection device |
| 06/12/2013 | CN103147694A Method for manufacturing cutting pick |
| 06/12/2013 | CN103147693A Quick reamer capable of identifying recycled cone |
| 06/12/2013 | CN103147692A Gear-fixed cutting structure composite drill bit |
| 06/12/2013 | CN103147691A Composite drill bit |
| 06/12/2013 | CN102140888B Excavating drilling machine |
| 06/12/2013 | CN102080505B Drill bit for swirling water jet drilling |
| 06/11/2013 | US8459382 Rotary drill bits including bearing blocks |
| 06/11/2013 | US8459381 Drill bits with axially-tapered waterways |
| 06/11/2013 | US8459380 Earth-boring bits and other parts including cemented carbide |
| 06/11/2013 | US8459379 Bearing contact pressure reduction in well tools |
| 06/11/2013 | US8459378 Hybrid drill bit |
| 06/11/2013 | US8459375 Tools for use in drilling or enlarging well bores having expandable structures and methods of making and using such tools |
| 06/11/2013 | CA2710204C Directional drilling system |
| 06/06/2013 | WO2013082465A1 Roller reamer compound wedge retention |
| 06/06/2013 | WO2013081606A1 Drill bit with seal having spheres in a matrix seal material |
| 06/06/2013 | WO2013081098A1 Excavation tool |
| 06/06/2013 | WO2012152874A3 Polycrystalline diamond structure |
| 06/06/2013 | WO2012152848A3 Tip for degradation tool and tool comprising same |
| 06/06/2013 | WO2012152847A3 Pick tool |
| 06/06/2013 | US20130140096 Cutting structures, earth-boring tools including such cutting structures, and related methods |
| 06/06/2013 | US20130140095 Drill bit alloy |
| 06/06/2013 | US20130140094 Rolling cutter using pin, ball or extrusion on the bit body as attachment methods |
| 06/06/2013 | US20130140093 Drill bit having geometrically sharp inserts |
| 06/06/2013 | US20130140090 Cutting Element, Cutter Tool and Method of Cutting Within a Borehole |
| 06/06/2013 | DE112011102668T5 Hartmetall-Zusammensetzungen mit einem Kobalt-Silizium-Legierungs-Bindemittel Carbide compositions having a cobalt-silicon alloy binder |
| 06/06/2013 | CA2856537A1 Drill bit with seal having spheres in a matrix seal material |
| 06/06/2013 | CA2854884A1 Excavation tool |
| 06/05/2013 | CN202970490U Novel diamond anchor rod drill |
| 06/05/2013 | CN202970489U Hard alloy mine spherical tooth |
| 06/05/2013 | CN202970488U Geological sampling diamond bit |
| 06/05/2013 | CN202970487U Long gauge bidirectional-drilling PDC drill bit |
| 06/05/2013 | CN202970486U Thermal arrest polycrystalline diamond clad sheet |
| 06/05/2013 | CN202970485U Cylinder guide type percussive drill bit |
| 06/05/2013 | CN202970484U Underreamer |
| 06/05/2013 | CN202970483U Outer barrel appropriate for hole opener |
| 06/05/2013 | CN202970482U Knife blade mechanism appropriate for hole opener |
| 06/05/2013 | CN202970481U Electric drill with variable diameter |
| 06/05/2013 | CN202970480U Mono-cone bit for ultrahigh pressure drilling |
| 06/05/2013 | CN202970479U Cone bit with chip removal function |
| 06/05/2013 | CN202970478U Indexable adamas compound blade clamping device |
| 06/05/2013 | CN202970477U Drill bit for grouting bamboo pipe |
| 06/05/2013 | CN103132918A Full steel ball anchor rod drill |
| 06/05/2013 | CN103132917A Auger bit with openable bottom baffle |
| 06/05/2013 | CN103132916A Hollow anchor rod drill |
| 06/05/2013 | CN103132915A Hollow anchor rod drill bit |
| 06/05/2013 | CN103132914A Anchor rod drill |