| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 07/24/2013 | CN203081307U Superhard material down-the-hole drill bit with hardened steel body surface |
| 07/24/2013 | CN203081306U Mud-prevention diamond compact scraper type drill |
| 07/24/2013 | CN203081305U Sand, stone and soil squeezing taper-shaped sleeve diamond bit |
| 07/24/2013 | CN203081304U Diamond-impregnated bit with hot-pressed right trapezoid-shaped tooth |
| 07/24/2013 | CN203081303U Insulation drill rod |
| 07/24/2013 | CN203081302U Electric pick chisel |
| 07/24/2013 | CN203081301U Integrated drilling squeezing device capable of effectively avoiding pipe damage |
| 07/24/2013 | CN203081300U Star-shaped nozzle |
| 07/24/2013 | CN203081299U Coring rock penetrating drill bit of small-power rotary drilling rig |
| 07/24/2013 | CN203081298U Coring bit for asphalt pavement detection |
| 07/24/2013 | CN203081297U Drilling machine for petroleum geological exploration |
| 07/24/2013 | CN203080528U Drilling and spraying integrated foundation treating special drilling tool assembly |
| 07/24/2013 | CN203080527U Drilling and spraying integrated foundation treating drilling tool assembly |
| 07/24/2013 | CN203080512U Two-shaft or four-shaft or six-shaft interchanging type cemented soil mixing pile device |
| 07/24/2013 | CN103221628A Bearings for downhole tools, downhole tools incorporating such bearings, and methods of cooling such bearings |
| 07/24/2013 | CN103216196A Drilling head capable of drilling into rock used for engineering pile |
| 07/23/2013 | US8490721 Polycrystalline diamond |
| 07/23/2013 | CA2701371C Cutting structures for earth-boring drill bits |
| 07/18/2013 | WO2013106632A1 Turbine driven reaming bit with profile limiting torque fluctuation |
| 07/18/2013 | WO2013106628A1 Turbine driven reaming bit with stability and cutting efficiency features |
| 07/18/2013 | WO2013106627A1 Turbine driven reaming bit with blades and cutting structure extending into concave nose |
| 07/18/2013 | WO2013106381A1 Composites comprising clustered reinforcing agents, methods of production, and methods of use |
| 07/18/2013 | WO2013106048A1 Method and apparatus for reaming well bore surfaces nearer the center of drift |
| 07/18/2013 | WO2013104470A2 A drill bit for a percussive hammer, and shank therefore |
| 07/18/2013 | WO2013104069A1 Fluid or slurry pulsing casing/liner shoe |
| 07/18/2013 | WO2013016641A4 Methods of coating wellbore tools and components having such coatings |
| 07/18/2013 | WO2012171643A3 Two-centre rotary boring bit and method for deepening an existing well |
| 07/18/2013 | US20130180786 Composites comprising clustered reinforcing agents, methods of production, and methods of use |
| 07/18/2013 | US20130180785 Rock drill bit for percussive drilling and a rock drill bit button |
| 07/18/2013 | US20130180784 Rock drill bit and a drilling assembly for percussive rock drilling |
| 07/18/2013 | US20130180783 Turbine Driven Reaming Bit with Stability and Cutting Efficiency Features |
| 07/18/2013 | US20130180782 Turbine Driven Reaming Bit with Blades and Cutting Structure Extending into Concave Nose |
| 07/18/2013 | US20130180781 Turbine Driven Reaming Bit with Profile Limiting Torque Fluctuation |
| 07/18/2013 | US20130180779 Wellbore Conditioning System |
| 07/18/2013 | CA2858433A1 Composites comprising clustered reinforcing agents, methods of production, and methods of use |
| 07/18/2013 | CA2832726A1 Method and apparatus for reaming well bore surfaces nearer the center of drift |
| 07/17/2013 | CN203066913U Hole drilling construction equipment of reverse circulation drill |
| 07/17/2013 | CN203066868U Drill bit structure with three rows of teeth |
| 07/17/2013 | CN203066867U PDC drilling bit suitable for perpendicular well-drilling system |
| 07/17/2013 | CN203066866U Primary-and-secondary-type cutting pick and rotary drill |
| 07/17/2013 | CN203066865U Anchor rod drill capable of broaching |
| 07/17/2013 | CN203066864U Rear broaching drill bit |
| 07/17/2013 | CN203066858U Multifunctional front-digging and back-hanging type earth boring machine |
| 07/17/2013 | CN103210390A Method and apparatus for efficient implementation of design changes |
| 07/17/2013 | CN103210176A Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods |
| 07/17/2013 | CN103210172A Superhard cutter |
| 07/17/2013 | CN103210171A Composite materials including nanoparticles, earth-boring tools and components including such composite materials, polycrystalline materials including nanoparticles, and related methods |
| 07/17/2013 | CN103210170A A down-the-hole hammer drill assembly |
| 07/17/2013 | CN103210169A Status indicators for use in earth-boring tools having expandable members and methods of making and using such status indicators and earth-boring tools |
| 07/17/2013 | CN103206171A Coring bit with pressure drilling at circulation break |
| 07/17/2013 | CN103206170A Concrete body hole bottom reamer |
| 07/17/2013 | CN101878346B Percussive drill bit for rock drilling and method for the manufacture of such drill bit |
| 07/16/2013 | US8485284 Method for producing a PCD compact |
| 07/16/2013 | US8485283 Drill bit |
| 07/16/2013 | US8485282 Earth-boring tools having expandable cutting structures and methods of using such earth-boring tools |
| 07/16/2013 | US8485280 Core drilling tools with retractably lockable driven latch mechanisms |
| 07/16/2013 | US8485277 Bottom-hole assembly, and a method and system for transmitting data from a bottom-hole assembly |
| 07/16/2013 | CA2695581C Earth-boring tools having pockets for receiving cutting elements and methods for forming earth-boring tools including such pockets |
| 07/11/2013 | WO2013074346A4 Downhole tools including anomalous strengthening materials and related methods |
| 07/11/2013 | WO2013028256A3 Impregnated drilling tools including elongated structures |
| 07/11/2013 | WO2012084850A3 Composite part including a cutting element |
| 07/11/2013 | US20130175097 Cutting assembly |
| 07/11/2013 | US20130175096 Percussion drilling assembly and hammer bit with gage and outer row reinforcement |
| 07/11/2013 | US20130175095 Pressure activated flow switch for a downhole tool |
| 07/11/2013 | US20130175017 Spiral steel, application product of same, and method for manufacturing spiral steel |
| 07/10/2013 | EP2612981A1 A drill bit for a percussive hammer, and shank and retention lug therefore |
| 07/10/2013 | CN203050591U Profiled fishing drill bit |
| 07/10/2013 | CN203050526U High-pressure cutting drill bit |
| 07/10/2013 | CN203050525U Rotary grout-jetting nozzle with forced grout-returning function |
| 07/10/2013 | CN203050524U Helical-blade spiral-flow-passage drill bit |
| 07/10/2013 | CN203050523U Ploughing type diamond bit |
| 07/10/2013 | CN203050522U Reamer bit |
| 07/10/2013 | CN203050521U Well bore reamer provided with multilevel cutting blades |
| 07/10/2013 | CN203050520U Dual-torque transmission concentric tube-following drilling tool |
| 07/10/2013 | CN203050519U Multifunctional high-pressure jet grouting subsection reaming bit |
| 07/10/2013 | CN203050518U Roller bit provided with diamond compact |
| 07/10/2013 | CN203050517U Drilling head for rock core drilling |
| 07/10/2013 | CN203050516U Soil texture surrounding rock drilling bit |
| 07/10/2013 | CN203050515U Drill bit for oil field |
| 07/10/2013 | CN203050514U Drilling bit for oil exploration |
| 07/10/2013 | CN203050513U Diamond bit |
| 07/10/2013 | CN203050512U Rock drill bit |
| 07/10/2013 | CN203050511U Whirlwind type jet drill bit |
| 07/10/2013 | CN103201451A Cutting elements, earth-boring tools incorporating such cutting elements, and methods of forming such cutting elements |
| 07/10/2013 | CN103195385A Under-pressure wet drill coring drill bit |
| 07/10/2013 | CN103195373A Detachable combined drive key for power head of rotary drilling rig |
| 07/10/2013 | CN103195372A Spiral drill bit, foam drilling device and foam drilling process |
| 07/10/2013 | CN103195371A Stirring drill bit with multiple layers of blades and plurality of spouting holes |
| 07/10/2013 | CN103195370A Combined type drill bit |
| 07/10/2013 | CN103195369A Down-hole hammer |
| 07/10/2013 | CN103195368A Cone bit double-elastic-piece sealing device |
| 07/10/2013 | CN103195367A Cone leg and roller bit thereof |
| 07/10/2013 | CN103195366A Under-pressure wet drill coring method |
| 07/10/2013 | CN102168528B Drill bucket capable of opening bucket door continuously to discharge soil forcibly |
| 07/09/2013 | US8479846 Earth-boring tools including an impact material and methods of drilling through casing |
| 07/09/2013 | US8479845 Cutting element assembly including one or more superabrasive cutting elements, drill bit utilizing the same, and methods of manufacture |
| 07/09/2013 | US8479844 Distance holder with jet deflector |
| 07/09/2013 | US8479842 Garden auger |
| 07/09/2013 | US8479812 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 07/09/2013 | CA2781651C Cemented carbide inserts for earth-boring bits |