| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 03/30/2011 | CN101994483A Tower type large-diameter deep well planet primary-secondary drill |
| 03/29/2011 | US7914006 Drilling tool with elastomer seal having graded properties |
| 03/29/2011 | US7913779 Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits |
| 03/29/2011 | US7913778 Rock bit with hydraulic configuration |
| 03/29/2011 | US7913777 Rock drill |
| 03/24/2011 | WO2011035266A2 Apparatus for drilling faster, deeper and wider well bore |
| 03/24/2011 | WO2011035051A2 External, divorced pdc bearing assemblies for hybrid drill bits |
| 03/24/2011 | WO2010144837A3 Cutter assemblies, downhole tools incorporating such cutter assemblies and methods of making such downhole tools |
| 03/24/2011 | WO2010132234A3 Methods of use of particulate materials in conjunction with braze alloys and resulting structures |
| 03/24/2011 | WO2010127233A3 Casing bits, drilling assemblies, and methods for use in forming wellbores with expandable casing |
| 03/24/2011 | WO2010123953A3 Earth-boring tools and components thereof including methods of attaching at least one of a shank and a nozzle to a body of an earth-boring tool and tools and components formed by such methods |
| 03/24/2011 | WO2010115617A3 Rotary drill bit |
| 03/24/2011 | US20110067930 Enhanced secondary substrate for polycrystalline diamond compact cutting elements |
| 03/24/2011 | US20110067929 Polycrystalline diamond compacts, methods of making same, and applications therefor |
| 03/24/2011 | US20110067928 Bottom-hole assembly, and a method and system for transmitting data from a bottom-hole assembly |
| 03/24/2011 | US20110067927 Drill Head for Deep-Hole Drilling |
| 03/24/2011 | US20110067924 Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
| 03/24/2011 | CA2773897A1 External, divorced pdc bearing assemblies for hybrid drill bits |
| 03/23/2011 | EP2297425A1 Polycrystalline diamond compact drill bit blade design and nozzle placement |
| 03/23/2011 | EP2297424A2 Methods, systems, and bottom hole assemblies including reamer with varying effective back rake |
| 03/23/2011 | EP2297423A2 Anti-tracking feature for rock bits |
| 03/23/2011 | CN201771431U Point tooth for roller bit |
| 03/23/2011 | CN201771430U Novel tri-wing drill bit |
| 03/23/2011 | CN201771429U Spiral drill bit |
| 03/23/2011 | CN201771428U Bearing sealing for roller bit with single-sealing ring |
| 03/23/2011 | CN101988369A Pressure-reducing and speed-accelerating drill flow channel structure and drill |
| 03/23/2011 | CN101988368A Stick-slip vibration shock absorber of (polycrystalline diamond compact) PDC drill head |
| 03/22/2011 | US7909121 Polycrystalline ultra-hard compact constructions |
| 03/22/2011 | US7909119 Drill bits with notches and enclosed slots |
| 03/22/2011 | US7909116 Impact excavation system and method with improved nozzle |
| 03/22/2011 | CA2522019C Nutating single cone drill bit |
| 03/17/2011 | WO2011031942A2 Drilling system for making lwd measurements ahead of the bit |
| 03/17/2011 | WO2011031912A2 Polycrystalline compacts having material disposed in interstitial spaces therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts |
| 03/17/2011 | WO2011031863A2 Drill bit with rate of penetration sensor |
| 03/17/2011 | WO2011031747A2 Single piezo-actuator rotary-hammering (sparh) drill |
| 03/17/2011 | WO2011031696A2 Drill bits and methods of drilling curved boreholes |
| 03/17/2011 | WO2011031636A2 Earth boring bit with dlc coated bearing and seal |
| 03/17/2011 | US20110061945 Durability of Downhole Tools |
| 03/17/2011 | US20110061944 Polycrystalline diamond composite compact |
| 03/17/2011 | US20110061943 Impregnated rotary drag bit with enhanced drill out capability |
| 03/17/2011 | US20110061942 Polycrystalline compacts having material disposed in interstitial spaces therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts |
| 03/17/2011 | US20110061941 Earth removal member with features for facilitating drill-through |
| 03/17/2011 | US20110061940 Conformal bearing for rock drill bit |
| 03/17/2011 | CA2776610A1 Drill bits and methods of drilling curved boreholes |
| 03/17/2011 | CA2773500A1 Polycrystalline compacts having material disposed in interstitial spaces therein, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts |
| 03/17/2011 | CA2773057A1 Drill bit with rate of penetration sensor |
| 03/17/2011 | CA2772951A1 Earth boring bit with dlc coated bearing and seal |
| 03/16/2011 | CN201763256U Sapphire spiral complex drill bit for comprehensive drilling |
| 03/16/2011 | CN201763255U Hole-flushing drilling tool of jet type |
| 03/16/2011 | CN201763254U Shock-resistant diamond bit gape protection structure |
| 03/16/2011 | CN201763253U Diamond bit for petroleum drilling |
| 03/16/2011 | CN201763252U Diamond drilling bit |
| 03/16/2011 | CN201763251U Double-cone double spiral bit for rotary drill |
| 03/16/2011 | CN201763250U Double spiral bit for rotary drill |
| 03/16/2011 | CN201763249U Drilling bit |
| 03/16/2011 | CN201763248U Double-cone double spiral bit for rotary drill |
| 03/16/2011 | CN201763247U Single-cone single spiral bit for rotary drill |
| 03/16/2011 | CN201763246U Hole-drill bottom-expanding drill |
| 03/16/2011 | CN201763245U Geological reamer |
| 03/16/2011 | CN201763244U Non-core cylindrical rock drill for rotary drilling rig |
| 03/16/2011 | CN201763243U Three-layer rock-socketed cylindrical drill for rotary drilling rig |
| 03/16/2011 | CN201763242U Non-core cylindrical rock drill equipped with sawteeth at bottom |
| 03/16/2011 | CN201763239U Pillar drilling machine |
| 03/15/2011 | US7905301 Earth boring drill bits made from a low-carbon, high-molybdenum alloy |
| 03/15/2011 | CA2522993C Well string assembly |
| 03/11/2011 | CA2714545A1 Earth removal member with features for facilitating drill-through |
| 03/10/2011 | WO2011028427A2 Synergic surface modification for bearing seal |
| 03/10/2011 | WO2011028193A2 Drill bit |
| 03/10/2011 | WO2010141575A3 Methods systems and compositions for manufacturing downhole tools and downhole tool parts |
| 03/10/2011 | WO2010129253A3 Adaptive control concept for hybrid pdc/roller cone bits |
| 03/10/2011 | US20110056753 Thermally Stable Ultra-Hard Material Compact Construction |
| 03/10/2011 | US20110056751 Ultra-hard matrix reamer elements and methods |
| 03/10/2011 | CA2771227A1 Synergic surface modification for bearing seal |
| 03/09/2011 | EP1735520B1 Improvements in or relating to rock drilling equipment |
| 03/09/2011 | CN101984191A High pressure jet grouting pile driving machine |
| 03/08/2011 | US7900721 Hard metal plate for rock drill and rock drill |
| 03/08/2011 | US7900720 Downhole drive shaft connection |
| 03/03/2011 | WO2011025510A1 Pcd percussion drill bit |
| 03/03/2011 | WO2011023829A1 A drill bit assembly for fluid-operated percussion drill tools |
| 03/03/2011 | WO2011005404A3 Wear resistant weld overlay on downhole mining components |
| 03/03/2011 | WO2010147718A3 Erosion resistant subterranean drill bits having infiltrated metal matrix bodies |
| 03/03/2011 | WO2010144538A3 Drill bit with weight and torque sensors |
| 03/03/2011 | WO2010137826A3 Hydraulic breaker |
| 03/03/2011 | WO2010137798A3 Method and apparatus for drilling large-diameter hole in ground |
| 03/03/2011 | WO2010135605A3 Cutting elements, methods for manufacturing such cutting elements, and tools incorporating such cutting elements |
| 03/03/2011 | WO2010132235A3 Cutting element for use in a drill bit for drilling subterranean formations |
| 03/03/2011 | WO2010132232A3 Hybrid drill bit |
| 03/03/2011 | WO2010129813A3 Methods of making and attaching tsp material for forming cutting elements, cutting elements having such tsp material and bits incorporating such cutting elements |
| 03/03/2011 | WO2010129811A3 Cutting elements with re-processed thermally stable polycrystalline diamond cutting layers, bits incorporating the same, and methods of making the same |
| 03/03/2011 | WO2010129507A3 Roller cones, methods of manufacturing such roller cones, and drill bits incorporating such roller cones |
| 03/03/2011 | WO2010129468A3 Milling system and method of milling |
| 03/03/2011 | WO2010126936A3 Cutter pocket design |
| 03/03/2011 | WO2010126817A3 Bearing blocks for drill bits, drill bit assemblies including bearing blocks and related methods |
| 03/03/2011 | WO2010123906A3 Impregnated bit with increased binder percentage |
| 03/03/2011 | WO2010116152A3 Under-reamer |
| 03/03/2011 | WO2010106335A3 Downhole drilling assembly |
| 03/03/2011 | US20110048811 Drill bit with a retained jack element |
| 03/03/2011 | US20110048810 Synergic surface modification for bearing seal |
| 03/03/2011 | US20110048809 High performance rock bit grease |
| 03/03/2011 | DE10258963B4 Vorrichtung zum Spülbohren von Bohrlöchern in Böden Apparatus for directional drilling of wells in soils |