| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 04/03/2013 | CN103015889A Stator and rotor assembly for high-power high-speed high-efficiency turbodrills |
| 04/03/2013 | CN103008670A Novel geological drill and manufacturing method |
| 04/03/2013 | CN102345442B Electric hole diameter expander |
| 04/03/2013 | CN102251518B Rotary pump perforating piling machine |
| 04/02/2013 | US8408338 Impregnated rotary drag bit with enhanced drill out capability |
| 03/28/2013 | WO2013043557A1 Methods of forming a cutting element for an earth-boring tool, a related cutting element, and an earth-boring tool including such a cutting element |
| 03/28/2013 | WO2013043556A2 Methods of forming polycrystalline diamond compacts and resulting polycrystalline diamond compacts and cutting elements |
| 03/28/2013 | WO2013043555A1 Sensor-enabled cutting elements for earth-boring tools, earth-boring tools so equipped, and related methods |
| 03/28/2013 | WO2013043499A2 A bottom hole assembly for deploying an expandable liner in a wellbore |
| 03/28/2013 | WO2013043347A1 Cutting inserts for earth-boring bits |
| 03/28/2013 | WO2013042055A1 Wafer cutting sacrificial substrate for use in wafer cutting |
| 03/28/2013 | WO2012162517A3 Corrodible triggering elements for use with subterranean borehole tools having expandable members and related methods |
| 03/28/2013 | US20130075167 Rotary Drag Bit |
| 03/28/2013 | US20130075166 Rotational drill bits and drilling apparatuses including the same |
| 03/28/2013 | US20130075165 Cutting inserts for earth-boring bits |
| 03/28/2013 | US20130075162 Roller cone bit |
| 03/28/2013 | CA2847699A1 A bottom hole assembly for deploying an expandable liner in a wellbore |
| 03/27/2013 | EP2572070A2 Hydraulic actuation of a downhole tool assembly |
| 03/27/2013 | EP2572011A1 Polycrystalline diamond |
| 03/27/2013 | EP2571648A2 Methods of forming at least a portion of earth-boring tools, and articles formed by such methods |
| 03/27/2013 | EP2571647A2 Methods of forming at least a portion of earth-boring tools, and articles formed by such methods |
| 03/27/2013 | CN202832225U Diamond compact piece for down-the-hole drill bit |
| 03/27/2013 | CN202832224U Steel body diamond polycrystalline diamond compact (PDC) bit provided with protective layers on surfaces of knife blades |
| 03/27/2013 | CN202832223U Diamond polycrystalline diamond compact (PDC) bit provided with mud prevention coatings |
| 03/27/2013 | CN202832222U Polycrystalline diamond clad sheet |
| 03/27/2013 | CN202832221U Polycrystalline diamond compact (PDC) bit drill suitable for conglomeratic stratum |
| 03/27/2013 | CN202832220U Streamline-edge and 9-tooth hard alloy rock bit |
| 03/27/2013 | CN202832219U Hollow rotary drill for cutting rocks into blocks in well cylinder of bored pile |
| 03/27/2013 | CN202832218U Keyless rock bit |
| 03/27/2013 | CN202832217U Streamline-edge and 8-tooth hard alloy rock bit |
| 03/27/2013 | CN202832216U Spring energy storage bearing double seal ring of roller bit |
| 03/27/2013 | CN202832215U Spring energy storage bearing seal ring of roller bit |
| 03/27/2013 | CN202832214U Drilling tool |
| 03/27/2013 | CN202832213U Rotary drilling tool and rotary drilling rig |
| 03/27/2013 | CN202832212U Drill for gas draining hole |
| 03/27/2013 | CN202832211U Drilling tool and rotary drilling rig |
| 03/27/2013 | CN202832210U Sharp drill bit |
| 03/27/2013 | CN202832194U Dual-purpose type concentric simultaneous casing drilling tool |
| 03/27/2013 | CN103003471A Hard face structure and body comprising same |
| 03/27/2013 | CN103003010A Methods of forming at least a portion of earth-boring tools, and articles formed by such methods |
| 03/27/2013 | CN102996081A Drill device of drilling machine |
| 03/27/2013 | CN102996076A Drilling bit of horizontal directional drilling machine |
| 03/27/2013 | CN102996075A Drilling and reaming way-type drilling unit |
| 03/27/2013 | CN102996074A Drilling and reaming combined drill |
| 03/27/2013 | CN102261261B Drilling and reflection reducing integrated device for tectonic coal development area |
| 03/27/2013 | CN102230363B Device and method for drilling and forming hole in coal rock in structural belt |
| 03/27/2013 | CN101023240B 岩石钻头 Rock drill |
| 03/26/2013 | US8403080 Earth-boring tools and components thereof including material having hard phase in a metallic binder, and metallic binder compositions for use in forming such tools and components |
| 03/26/2013 | US8403079 Rock bit having a seal gland with a conical sealing surface |
| 03/23/2013 | CA2790523A1 Rotary drag bit |
| 03/22/2013 | CA2790369A1 Roller cone bit |
| 03/21/2013 | WO2013040408A2 Hole opener bearing arrangement |
| 03/21/2013 | WO2013040381A2 Methods of attaching a polycrystalline diamond compact to a substrate and cutting elements formed using such methods |
| 03/21/2013 | WO2013040362A2 Methods of fabricating polycrystalline diamond, and cutting elements and earth-boring tools comprising polycrystalline diamond |
| 03/21/2013 | WO2013040332A2 Methods for attaching cutting elements to earth-boring tools and resulting products |
| 03/21/2013 | WO2013040292A2 Methods of forming polycrystalline compacts and resulting compacts |
| 03/21/2013 | WO2013040125A2 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods |
| 03/21/2013 | WO2013040123A1 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods |
| 03/21/2013 | WO2013038059A1 Tool for breaking hammer, breaking hammer, and use thereof |
| 03/21/2013 | WO2012154415A3 Apparatus and method for drilling wellbores based on mechanical specific energy determined from bit-based weight and torque sensors |
| 03/21/2013 | US20130068541 Methods of fabricating polycrystalline diamond, and cutting elements and earth-boring tools comprising polycrystalline diamond |
| 03/21/2013 | US20130068540 Methods of fabricating polycrystalline diamond, and cutting elements and earth-boring tools comprising polycrystalline diamond |
| 03/21/2013 | US20130068539 Methods of attaching a polycrystalline diamond compact to a substrate and cutting elements formed using such methods |
| 03/21/2013 | US20130068538 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods |
| 03/21/2013 | US20130068537 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods |
| 03/21/2013 | US20130068536 Methods of forming polycrystalline diamond compacts and resulting polycrystalline diamond compacts and cutting elements |
| 03/21/2013 | US20130068535 Methods of forming a cutting element for an earth-boring tool, a related cutting element, and an earth-boring tool including such a cutting element |
| 03/21/2013 | US20130068534 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods |
| 03/21/2013 | US20130068529 Tool for Removing Drill Cores from Hammer Drill Bits |
| 03/21/2013 | US20130068525 Sensor-enabled cutting elements for earth-boring tools, earth-boring tools so equipped, and related methods |
| 03/21/2013 | US20130068481 A Bottom Hole Assembly For Deploying An Expandable Liner In a Wellbore |
| 03/21/2013 | US20130068449 Laser cladding fe-cr alloy on downhole tools |
| 03/21/2013 | CA2848733A1 Methods of fabricating polycrystalline diamond, and cutting elements and earth-boring tools comprising polycrystalline diamond |
| 03/21/2013 | CA2848651A1 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods |
| 03/21/2013 | CA2848649A1 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods |
| 03/20/2013 | EP2570583A2 Earth-boring bits and other parts including cemented carbide |
| 03/20/2013 | EP2570245A2 Hardfacing composition |
| 03/20/2013 | EP2569457A1 Polycrystalline diamond |
| 03/20/2013 | CN202810669U Rock drill spherical gear |
| 03/20/2013 | CN202810668U High-strength hard alloy anchor rod drill bit |
| 03/20/2013 | CN202810667U Fishtail scraper drill |
| 03/20/2013 | CN202810666U Thin wedge-shaped geological diamond compact bit |
| 03/20/2013 | CN202810665U Anchor rod drill bit provided with working surfaces on the side |
| 03/20/2013 | CN202810664U 同心跟管钻具 Concentric with the drill pipe |
| 03/20/2013 | CN202810663U Improving structure of drill bit |
| 03/20/2013 | CN202810662U Reverse circulation slag removal reamer bit |
| 03/20/2013 | CN202810661U Mineral self-positioning expanding drill |
| 03/20/2013 | CN202810660U Cone bit with strengthened abrasion resistance of bit leg tip |
| 03/20/2013 | CN202810659U Cross bit |
| 03/20/2013 | CN102985197A Methods of forming at least a portion of earth-boring tools, and articles formed by such methods |
| 03/20/2013 | CN102979462A Ladder dislocation cutting spiral chip removing cylindrical drilling tool in end-surface tubular drilling tube |
| 03/20/2013 | CN102979461A Concentric simultaneous casing drilling tool |
| 03/20/2013 | CN102979460A Rectangular concrete filling pile boring machine |
| 03/20/2013 | CN102251744B Annular patio drilling machine |
| 03/20/2013 | CN102041965B Coal mine underground over-broken abnormal zone drilling method |
| 03/19/2013 | US8397841 Drill bit with cutting elements having functionally engineered wear surface |
| 03/19/2013 | US8397838 Rotary roller reamer |
| 03/19/2013 | US8397836 Pressure and flow control in drilling operations |
| 03/19/2013 | CA2709672C Silicon carbide composite materials, earth-boring tools comprising such materials, and methods for forming the same |
| 03/19/2013 | CA2708810C Erosion resistant fluid passageways and flow tubes for earth-boring tools, methods of forming the same and earth-boring tools including the same |