| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 01/18/2012 | EP2032792B1 Multi-sectional percussive drill bit assembly |
| 01/18/2012 | CN202117570U Plug-in type high-pressure cutting drill bit |
| 01/18/2012 | CN202117569U Drill |
| 01/18/2012 | CN202117568U Diamond/hard alloy composite tip |
| 01/18/2012 | CN202117561U Annular raise boring machine |
| 01/18/2012 | CN202117557U Drilling machine for spring root irrigation |
| 01/18/2012 | CN102322245A Gas hydrate exploitation device |
| 01/18/2012 | CN102322225A Drilling tool for drilling and sampling complex stratum |
| 01/18/2012 | CN102322220A Drilling head for reborinq a stuck valve |
| 01/18/2012 | CN102322219A Submarine jet drilling vehicle |
| 01/18/2012 | CN102322058A Construction process and equipment for downhole impacting high-pressure jet grouting pile |
| 01/17/2012 | US8096373 Rotary drill bits and drilling tools having protective structures on longitudinally trailing surfaces |
| 01/17/2012 | US8096372 Cutter geometry for increased bit life and bits incorporating the same |
| 01/12/2012 | WO2012006281A2 Methods of forming inserts and earth-boring tools |
| 01/12/2012 | WO2012006182A1 Drill bits with anti-tracking features |
| 01/12/2012 | WO2012004292A1 Hard face structure, body comprising same and method for making same |
| 01/12/2012 | WO2012003560A1 Laser drilling device |
| 01/12/2012 | WO2011146836A3 Hydraulic actuation of a downhole tool assembly |
| 01/12/2012 | WO2011146760A3 Methods of forming at least a portion of earth-boring tools, and articles formed by such methods |
| 01/12/2012 | WO2011146752A3 Methods of forming at least a portion of earth-boring tools, and articles formed by such methods |
| 01/12/2012 | WO2011146736A3 Rolling cutter bit design |
| 01/12/2012 | WO2011139696A3 At-bit evaluation of formation parameters and drilling parameters |
| 01/12/2012 | WO2011112419A3 High temperature/high pressure seal |
| 01/12/2012 | US20120005966 Methods of forming inserts and earth-boring tools |
| 01/12/2012 | CA2804664A1 Hard face structure, body comprising same and method for making same |
| 01/12/2012 | CA2804041A1 Hybrid drill bit with anti-tracking features |
| 01/11/2012 | EP2403969A1 Polycrystalline diamond element |
| 01/11/2012 | EP2094419B1 Rock drill |
| 01/11/2012 | EP2019901B1 Reaming tool suitable for running on casing or liner and method of reaming |
| 01/11/2012 | CN202108431U Pile-forming drilling tool for screw squeezed cast-in-place pile |
| 01/11/2012 | CN202108419U Anti-blocking structure of chip removal vent of cutting drill bit |
| 01/11/2012 | CN202108418U Drilling bit of rotary-digging drilling rig |
| 01/11/2012 | CN102312427A Half soil squeezing screw expansion pile forming method |
| 01/10/2012 | US8091655 Rolling cutter |
| 01/10/2012 | US8091654 Rock bit with vectored hydraulic nozzle retention sleeves |
| 01/10/2012 | CA2626744C Drill rod, drill bit, and drilling tool |
| 01/05/2012 | WO2012002961A1 Bearing assembly for rotary drills |
| 01/05/2012 | WO2012002939A1 Angled bearing assembly |
| 01/05/2012 | WO2012000077A1 Remotely operable underwater drilling system and drilling method |
| 01/05/2012 | WO2011132166A3 Polycrystalline superhard material |
| 01/05/2012 | US20120000712 Cutter head for dredging ground and use of this cutter head for dredging ground |
| 01/05/2012 | US20120000707 Measuring Mechanism in a Bore Hole of a Pointed Cutting Element |
| 01/05/2012 | CA2802872A1 Remotely operable underwater drilling system and drilling method |
| 01/04/2012 | EP2401467A1 Drill bit with adjustable cutters |
| 01/04/2012 | EP2401466A1 Methods and apparatuses for estimating drill bit condition |
| 01/04/2012 | EP2401101A1 Polycrystalline diamond compact including a cemented tungsten carbide substrate that is substantially free of tungsten carbide grains exhibiting abnormal grain growth and applications therefor |
| 01/04/2012 | CN202100203U Interlock type butt joint drill |
| 01/04/2012 | CN202100202U Forced dumping drill bucket and drilling rig thereof |
| 01/04/2012 | CN202100201U Conical toothed diamond compact |
| 01/04/2012 | CN202100200U Trapezoidal toothed diamond compact |
| 01/04/2012 | CN202100199U Drilling bucket capable of opening bucket door continuously and unloading soil forcefully |
| 01/04/2012 | CN102307688A Abrasive inserts |
| 01/04/2012 | CN102305034A Drilling tool for shallow-layer soil texture |
| 01/04/2012 | CN102305020A Drilling system for shallow drilling |
| 01/04/2012 | CN102303192A Method for improving applicability of polycrystalline diamond composite sheet serving as drill tooth/cutter tooth |
| 01/04/2012 | CN101984191B High pressure jet grouting pile driving machine |
| 01/03/2012 | US8087478 Cutting elements including cutting tables with shaped faces configured to provide continuous effective positive back rake angles, drill bits so equipped and methods of drilling |
| 01/03/2012 | US8087324 Cast cones and other components for earth-boring tools and related methods |
| 01/03/2012 | CA2667079C Particle-matrix composite drill bits with hardfacing and methods of manufacturing and repairing such drill bits using hardfacing materials |
| 01/03/2012 | CA2466939C An improved transmission sleeve |
| 12/29/2011 | WO2011162999A2 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming cutting elements for earth-boring tools |
| 12/29/2011 | WO2011162987A2 Cutting elements for downhole cutting tools |
| 12/29/2011 | WO2011162986A2 Cutting elements for downhole cutting tools |
| 12/29/2011 | WO2011162984A2 Downhole cutting tool having center beveled mill blade |
| 12/29/2011 | WO2011162775A1 Erosion resistant hard composite materials |
| 12/29/2011 | WO2011139903A3 Cutting elements, earth-boring tools, and methods of forming such cutting elements and tools |
| 12/29/2011 | WO2011139697A3 Pdc sensing element fabrication process and tool |
| 12/29/2011 | WO2011139519A3 Earth-boring tools and methods of forming earth-boring tools |
| 12/29/2011 | WO2011133850A3 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods |
| 12/29/2011 | WO2011097575A4 Shaped cutting elements on drill bits and other earth-boring tools, and methods of forming same |
| 12/29/2011 | US20110315456 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming cutting elements for earth-boring tools |
| 12/29/2011 | US20110315455 Cutting elements for downhole cutting tools |
| 12/29/2011 | US20110315454 Anti-Tracking Feature for Rock Bits |
| 12/29/2011 | US20110315453 Seal assembly for drill bit |
| 12/29/2011 | US20110315452 Drill Bits with Anti-Tracking Features |
| 12/29/2011 | US20110315449 Retention of cutters in bore hole tools |
| 12/29/2011 | US20110315448 Cutting Elements for Cutting Tools |
| 12/29/2011 | US20110315447 Downhole cutting tool having center beveled mill blade |
| 12/29/2011 | US20110315444 Apparatus and Methods for Corrosion Protection of Downhole Tools |
| 12/29/2011 | CA2851907A1 Cutting elements for downhole cutting tools |
| 12/29/2011 | CA2849595A1 Cutting elements for downhole cutting tools |
| 12/29/2011 | CA2803831A1 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming cutting elements for earth-boring tools |
| 12/29/2011 | CA2802854A1 Erosion resistant hard composite materials |
| 12/29/2011 | CA2802509A1 Cutting elements for downhole cutting tools |
| 12/29/2011 | CA2802506A1 Cutting elements for downhole cutting tools |
| 12/29/2011 | CA2802493A1 Downhole cutting tool having center beveled mill blade |
| 12/28/2011 | EP2398995A2 Stabilizer assemblies with bearing pad locking structures and tools incorporating same |
| 12/28/2011 | CN202090841U 异形水眼 Shaped water hole |
| 12/28/2011 | CN202090840U 凿岩机用钎头 Rock drill with drill bits |
| 12/28/2011 | CN202090839U 一种钻头复合片 A drill composite sheet |
| 12/28/2011 | CN202090838U 螺旋钻机钻头 Auger drill |
| 12/28/2011 | CN202090837U 具有切割土工材料功能的加强型搅拌桩钻头 Enhanced functionality with a cutting geotextile material mixing pile drill |
| 12/28/2011 | CN202090836U 用于污染土壤原位修复的双翼片式钻头 For in situ remediation of contaminated soil wings piece drill |
| 12/28/2011 | CN202090835U 螺旋钻机伸缩门钻头 Retractable door auger drill |
| 12/28/2011 | CN102296931A 高速聚晶金刚石复合片 Polycrystalline diamond compact high speed |
| 12/28/2011 | CN102296930A 一种带检测金属管道的智能环保挖机钻头 A tape detection of metal pipes intelligent environmental digging machine drill |
| 12/28/2011 | CN101598005B 一种地源热泵钻井耐磨钻头及其制造方法 One kind of ground source heat pump drilling drill wear and its manufacturing method |
| 12/27/2011 | US8083012 Diamond bonded construction with thermally stable region |
| 12/27/2011 | US8083010 Drilling device for drilling and reaming of a hole |
| 12/22/2011 | WO2011160027A2 Oil operated rotary steerable system |