| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 01/15/2014 | CN103510858A Tooth-shaped drill bit for exploratory drilling |
| 01/15/2014 | CN103510857A Deflection prevention drill bit for drilling |
| 01/15/2014 | CN103510856A Alloy drill bit for exploratory drilling |
| 01/15/2014 | CN103510849A Cone drill for cooling drill bit by spraying water |
| 01/15/2014 | CN103510847A Roller cone drilling machine capable of controlling jet velocity of compressed gas |
| 01/15/2014 | CN102635354B Five-drill air inlet and outlet type coal mining machine |
| 01/15/2014 | CN101899952B 钻具 Drill |
| 01/15/2014 | CN101492999B Used of downhole fluid static pressure bearing |
| 01/14/2014 | US8627905 Non-planar interface construction |
| 01/14/2014 | US8627904 Thermally stable polycrystalline diamond material with gradient structure |
| 01/14/2014 | US8627903 Percussion assisted rotary earth bit and method of operating the same |
| 01/14/2014 | CA2537633C Thermally stable polycrystalline diamond materials, cutting elements incorporating the same and bits incorporating such cutting elements |
| 01/09/2014 | WO2014007634A1 Cutter head for removing material from a water bed |
| 01/09/2014 | WO2014005834A1 Cutting inserts and method for making same |
| 01/09/2014 | US20140008131 Layered polycrystalline diamond |
| 01/09/2014 | US20140008128 Large gauge concentric underreamer |
| 01/09/2014 | US20140007519 Composite part including a cutting element |
| 01/09/2014 | US20140007512 Techniques and materials for the accelerated removal of catalyst material from diamond bodies |
| 01/08/2014 | EP2681399A2 Methods of forming polycrystalline elements and structures formed by such methods |
| 01/08/2014 | EP2681398A2 Polycrystalline tables, polycrystalline elements, and related methods |
| 01/08/2014 | EP2681396A2 Methods of forming polycrystalline tables and polycrystalline elements and related structures |
| 01/08/2014 | EP2681395A2 Methods of forming polycrystalline tables and polycrystalline elements and related structures |
| 01/08/2014 | CN203383738U Polycrystalline diamond compact cutting tooth |
| 01/08/2014 | CN203383737U Diamond-impregnated bit with half funnel-shaped water gap and double-layer water tank |
| 01/08/2014 | CN203383736U Double-blade PDC composite percussion drill |
| 01/08/2014 | CN203383735U Four-blade steel body diamond drill bit |
| 01/08/2014 | CN203383734U Expanding bit |
| 01/08/2014 | CN203383721U Pole pit digging device |
| 01/08/2014 | CN203383130U Packing mechanism |
| 01/08/2014 | CN203381049U Slender-rod diamond engineering drill substrate |
| 01/08/2014 | CN103502557A Composite part including a cutting element |
| 01/08/2014 | CN103502556A Earth-boring tools and methods of forming such earth-boring tools |
| 01/07/2014 | US8622155 Pointed diamond working ends on a shear bit |
| 01/07/2014 | US8622154 Diamond bonded construction with thermally stable region |
| 01/03/2014 | WO2014004405A1 Tunnel boring machine with cutterhead support assembly supporting a variable number of drive systems |
| 01/03/2014 | WO2014003751A1 High strength corrosion resistant high velocity oxy fuel (hvof) coating for downhole tools |
| 01/03/2014 | WO2014000935A2 Bit carrier for a drill head |
| 01/03/2014 | WO2013104470A3 A drill bit for a percussive hammer, and shank therefore |
| 01/03/2014 | CA2877675A1 High strength corrosion resistant high velocity oxy fuel (hvof) coating for downhole tools |
| 01/02/2014 | US20140000966 Wellbore tools with non-hydrocarbon-based greases and methods of making such wellbore tools |
| 01/02/2014 | DE102012105661A1 Meißelträger für einen Bohrkopf Cutter holder for a drill head |
| 01/02/2014 | DE102012013119A1 Method for enlarging hole in building-ground, involves rotating outer fitting opposite to rotating direction of inner fitting, where front drilling pipe is shortened and rear drilling pipe is extended according to drilling advancement |
| 01/01/2014 | EP2678514A2 Methods of forming polycrystalline compacts, cutting elements and earth-boring tools |
| 01/01/2014 | CN203374212U Drill bit for building construction |
| 01/01/2014 | CN203374211U Rotating locating rapid-drilling drill bit |
| 01/01/2014 | CN203374210U Polycrystalline diamond compact (PDC) drill bit with five blades and main elliptical cutting teeth |
| 01/01/2014 | CN103492662A Casing end tool |
| 01/01/2014 | CN103492661A Polycrystalline diamond compact cutters with conic shaped end |
| 01/01/2014 | CN103485726A Device used for weakening stick-slip vibration of downhole drilling tool and control method of device |
| 01/01/2014 | CN103485725A Rock-socketed reamer |
| 01/01/2014 | CN103485724A Underreaming drill bit |
| 01/01/2014 | CN103485723A Device and method for controlling RWD (reaming while drilling) drilling pressure distribution relationship |
| 01/01/2014 | CN103485722A Novel expanded-base scraper pan and base expanding method thereof |
| 01/01/2014 | CN103485720A Hypothermal splitting assisted drilling machine |
| 01/01/2014 | CN103485336A Drilling pile drilling construction method of bead-type karst area |
| 01/01/2014 | CN103481247A Cutting bit with hard cutting tip centering and braze joint control feature |
| 01/01/2014 | CN101349144B Drill bit |
| 12/31/2013 | US8617289 Hardfacing compositions for earth boring tools |
| 12/31/2013 | US8616307 Thermally stable diamond bonded materials and compacts |
| 12/31/2013 | US8616306 Polycrystalline diamond compacts, method of fabricating same, and various applications |
| 12/31/2013 | US8616305 Fixed bladed bit that shifts weight between an indenter and cutting elements |
| 12/31/2013 | US8616303 Helical drilling apparatus, systems, and methods |
| 12/31/2013 | CA2714545C Earth removal member with features for facilitating drill-through |
| 12/31/2013 | CA2564531C Representation of whirl in fixed cutter drill bits |
| 12/31/2013 | CA2533356C Cutting elements formed from ultra hard materials having an enhanced construction |
| 12/27/2013 | WO2013192578A1 Methods to repair worn or eroded pdc cutters, cutters so repaired, and use of repaired pdc cutters in drill bits or other tools |
| 12/27/2013 | WO2013191829A1 Cutting element, tool and method of cutting within a borehole |
| 12/27/2013 | WO2013191386A1 Drill bit including button array having different radii extending from center of head section |
| 12/27/2013 | WO2013074788A9 Hybrid drill bits having increased drilling efficiency |
| 12/27/2013 | CA2876988A1 Methods to repair worn or eroded pdc cutters, cutters so repaired, and use of repaired pdc cutters in drill bits or other tools |
| 12/27/2013 | CA2876635A1 Cutting element, tool and method of cutting within a borehole |
| 12/26/2013 | US20130341102 Methods To Repair Worn Or Eroded PDC Cutters, Cutters So Repaired, And Use Of Repaired PDC Cutters In Drill Bits Or Other Tools |
| 12/26/2013 | US20130341101 Feature to eliminate shale packing/shale evacuation channel |
| 12/26/2013 | US20130341100 Modular cutting-teeth drill bit with controllable drilling specific pressure |
| 12/26/2013 | US20130341097 Cutting Element, Tool and Method of Cutting Within a Borehole |
| 12/26/2013 | US20130341035 Method and Apparatus for Remotely Changing Flow Profile in Conduit and Drilling Bit |
| 12/26/2013 | US20130340997 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 12/26/2013 | US20130340352 Methods and systems for removing diamond-diamond bonding catalysts from polycrystalline diamond |
| 12/25/2013 | EP2677113A2 Downhole drilling assembly |
| 12/25/2013 | EP2677112A2 Downhole drilling assembly |
| 12/25/2013 | EP2675983A2 Polycrystalline compacts including metallic alloy compositions in interstitial spaces between grains of hard material, cutting elements and earth-boring tools including such polycrystalline compacts, and related methods |
| 12/25/2013 | EP2675982A1 Method and apparatus for down-the-hole drilling |
| 12/25/2013 | EP2675981A2 High performance wellbore departure and drilling system |
| 12/25/2013 | CN203362045U Anti-blocking drilling bit nozzle |
| 12/25/2013 | CN203362044U Polycrystalline diamond super-hard composite sheet |
| 12/25/2013 | CN203362043U Steel body polycrystalline diamond compact (PDC) bit with anti-erosion teeth holes |
| 12/25/2013 | CN203362042U Polycrystalline diamond compact (PDC) drill bit with low drilling resistance |
| 12/25/2013 | CN203362041U Bridge pier hole foreign matter cutter |
| 12/25/2013 | CN203362040U Novel fishtail bit capable of relieving drill pasting and conducting pile-forming conveniently |
| 12/25/2013 | CN203362039U Nozzle for particle impact roller bit |
| 12/25/2013 | CN203362038U Broaching drilling tool for sandy gravel stratum directional drilling |
| 12/25/2013 | CN103477019A Methods for forming polycrystalline materials including providing material with superabrasive grains prior to hpht processing, and polycrystalline compacts and cutting elements formed by such methods |
| 12/25/2013 | CN103477018A Polycrystalline tables, polycrystalline elements, and related methods |
| 12/25/2013 | CN103477017A Methods of forming polycrystalline elements and structures formed by such methods |
| 12/25/2013 | CN103477016A Bearing systems containing diamond enhanced materials and downhole applications for same |
| 12/25/2013 | CN103477015A Methods of forming polycrystalline tables and polycrystalline elements and related structures |
| 12/25/2013 | CN103470190A Diamond compact substrate |
| 12/25/2013 | CN103470189A Body-open type drilling bucket and rotary drilling rig |
| 12/25/2013 | CN103470188A Dual-seal cone bit with sealing pressure adjusting device |
| 12/25/2013 | CN103470187A Self-cooling environment-friendly energy storage drill |