| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 09/12/2013 | WO2012064948A3 System and method of configuring drilling tools utilizing a critical depth of cut control curve |
| 09/12/2013 | WO2011160027A8 Oil operated rotary steerable system |
| 09/12/2013 | US20130233621 System and method of constant depth of cut control of drilling tools |
| 09/11/2013 | EP2635764A1 Cutting element structure with sloped superabrasive layer |
| 09/11/2013 | EP2635763A1 System and method for adjusting roller cone profile on hybrid bit |
| 09/11/2013 | CN203188915U Diamond water exploring drill bit |
| 09/11/2013 | CN203188914U Hard rock diamond step-by-step chambering combined drill |
| 09/11/2013 | CN203188913U Bottom reaming bit |
| 09/11/2013 | CN203188912U Expanding drill bit |
| 09/11/2013 | CN203188911U Novel eccentric bit |
| 09/11/2013 | CN203188910U Flail block broaching simultaneous casing drilling tool |
| 09/11/2013 | CN103291224A Drill bit structure with connecting sleeve pipe |
| 09/11/2013 | CN103291223A Stepped drill bit assembly |
| 09/11/2013 | CN103291222A Reamer bit for building long-screw pile machine |
| 09/11/2013 | CN103291221A 牙轮钻头及其制造方法 And a method of manufacturing cone bit |
| 09/11/2013 | CN103291220A Roller bit bearing with sleeves at internally-fixed and externally-floating end |
| 09/11/2013 | CN103291219A Drilling and punching integrated hydraulic drill bit |
| 09/11/2013 | CN103286860A Core drill bit |
| 09/10/2013 | US8528670 Cutting element apparatuses and drill bits so equipped |
| 09/10/2013 | US8528669 Earth removal member with features for facilitating drill-through |
| 09/10/2013 | US8528668 Electronically activated underreamer and calliper tool |
| 09/10/2013 | US8528667 Wear resistant material at the leading edge of the leg for a rotary cone drill bit |
| 09/10/2013 | CA2730944C Dynamically stable hybrid drill bit |
| 09/10/2013 | CA2506471C Thermally stable diamond bonded materials and compacts |
| 09/06/2013 | WO2013130819A1 A drill bit and cutters for a drill bit |
| 09/05/2013 | US20130228383 Rotary drill bit including polycrystalline diamond cutting elements |
| 09/05/2013 | US20130228382 Inner gauge ring drill bit |
| 09/05/2013 | US20130228378 System and method of constant depth of cut control of drilling tools |
| 09/04/2013 | EP2633149A2 Cutting elements, earth-boring tools incorporating such cutting elements, and methods of forming such cutting elements |
| 09/04/2013 | EP2633148A2 Graphene-coated diamond particles, compositions and intermediate structures comprising same, and methods of forming graphene-coated diamond particles and polycrystalline compacts |
| 09/04/2013 | EP2632637A1 Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming same |
| 09/04/2013 | CN203175405U Rock-entering drill bit for engineering pile |
| 09/04/2013 | CN203175404U Hard alloy column chiseling drill bit |
| 09/04/2013 | CN203175403U Dry drilling pore-forming under-reaming drill bit of rotary drilling rig |
| 09/04/2013 | CN203175402U Tooth wheel mechanism for reamer |
| 09/04/2013 | CN203175401U Micro-positive pressure automatic compensating roller bit lubricating system |
| 09/04/2013 | CN203175400U Coring drill |
| 09/04/2013 | CN103277051A Self-excitation type pulse polycrystalline diamond compact (PDC) drill bit |
| 09/04/2013 | CN103273042A Method of preparing vanadium-titanium cemented-carbide drilling bit |
| 09/04/2013 | CN102535445B Molding device and molding method for long spiral extruding rock-entering cast-in-place pile |
| 09/03/2013 | US8522900 High toughness thermally stable polycrystalline diamond |
| 09/03/2013 | US8522899 Wear resistant material at the shirttail edge and leading edge of a rotary cone drill bit |
| 09/03/2013 | CA2595048C Cutter geometry for increased bit life and bits incorporating the same |
| 08/29/2013 | WO2013126752A1 Downhole cutting tool having a jetted top bushing |
| 08/29/2013 | WO2013126448A1 Use of capacitance and eddy currents to analyze polycrystalline diamond |
| 08/29/2013 | WO2013126436A1 Use of capacitance to analyze polycrystalline diamond |
| 08/29/2013 | US20130220707 Rolling cutter |
| 08/29/2013 | US20130220706 Kerfing hybrid drill bit and other downhole cutting tools |
| 08/29/2013 | US20130220704 High Performance Rock Bit Grease |
| 08/29/2013 | DE102012203088A1 Bohrkrone Drill bit |
| 08/28/2013 | CN203161108U Ground auger |
| 08/28/2013 | CN203161101U Drill stem used on roof bolter |
| 08/28/2013 | CN203161094U PCD (Polycrystalline Diamond Compact) substrate |
| 08/28/2013 | CN203161093U Rotary type cutting tooth, rotary excavating drilling tool and rotary excavating rig |
| 08/28/2013 | CN203161092U Self-control type hydraulic reamer |
| 08/28/2013 | CN203161091U Double elastic piece sealing device for cone bit |
| 08/28/2013 | CN203161090U Drill for oil exploration |
| 08/28/2013 | CN203161089U Welding-free alloy knife drilling machine drill |
| 08/28/2013 | CN103266855A Cone bit with base plane debris discharging function |
| 08/28/2013 | CN103266854A Hydraulic drive percussion primary-secondary drilling bit |
| 08/27/2013 | US8517125 Impregnated material with variable erosion properties for rock drilling |
| 08/27/2013 | US8517124 PDC drill bit with flute design for better bit cleaning |
| 08/27/2013 | US8517123 Milling cap for a polycrystalline diamond compact cutter |
| 08/27/2013 | CA2718669C Down-the-hole drill drive coupling |
| 08/22/2013 | WO2013122987A1 Actuation system and method for a downhole tool |
| 08/22/2013 | US20130213721 Superhard cutter |
| 08/22/2013 | US20130213720 Method And Apparatus To Improve The Performance Of A Leached Cutter |
| 08/22/2013 | US20130213718 Drill bit for percussive rock drilling |
| 08/22/2013 | US20130213717 Stepped drill bit assembly |
| 08/22/2013 | DE102013101666A1 Stufenbohreranordnung Step Drill arrangement |
| 08/21/2013 | EP2628890A2 Method for repairing or reinforcing cutter pockets of a drill bit |
| 08/21/2013 | EP2627852A1 Bearing systems containing diamond enhanced materials and downhole applications for same |
| 08/21/2013 | EP2627851A1 Drill assembly |
| 08/21/2013 | EP2627850A2 A down-the-hole hammer |
| 08/21/2013 | CN203145879U Combined core drill for improving core-drilling effect of fractured stratum |
| 08/21/2013 | CN203145846U Grouting freezing tube with traction valve control |
| 08/21/2013 | CN203145840U Broken glomerocryst and diamond impregnated bit |
| 08/21/2013 | CN203145839U Abrasion-resistant drill bit |
| 08/21/2013 | CN203145838U Diamond composite piece matrix |
| 08/21/2013 | CN203145837U Spiral bit with openable and closable bottom baffle |
| 08/21/2013 | CN203145836U Forced cutting drill bit for soft foundation cast-in-situ pile |
| 08/21/2013 | CN203145835U Combined multi-stage mud detritus crushing drill bit |
| 08/21/2013 | CN203145834U Rock reamer |
| 08/21/2013 | CN203145833U Anti-jamming drill bit for suction type bored piles |
| 08/21/2013 | CN203145829U Small-bore piercing and hydraulic slotting integrated device based on anchor cable drilling machine |
| 08/21/2013 | CN103261580A Underground drilling apparatus |
| 08/21/2013 | CN103261574A Remotely controlled apparatus for downhole applications and related methods |
| 08/21/2013 | CN103261565A Cutting element structure with sloped superabrasive layer |
| 08/21/2013 | CN103261564A Alloys with low coefficient of thermal expansion as pdc catalysts and binders |
| 08/21/2013 | CN103261563A Graphene-coated diamond particles, compositions and intermediate structures comprising same, and methods of forming graphene-coated diamond particles and polycrystalline compacts |
| 08/21/2013 | CN103261562A Wear resistant material at the shirttail edge and leading edge of a rotary cone drill bit |
| 08/21/2013 | CN103261561A A rock drill bit and a drilling assembly for percussive rock drilling |
| 08/21/2013 | CN103261560A Tools for use in subterranean boreholes having expandable members and related methods |
| 08/21/2013 | CN103261559A System and method for adjusting roller cone profile on hybrid bit |
| 08/21/2013 | CN103261558A Drill assembly |
| 08/21/2013 | CN103260799A Polycrystalline diamond cutting element |
| 08/21/2013 | CN103256008A PDC drill bit with double shaft bottom covering |
| 08/21/2013 | CN102322219B Submarine jet drilling vehicle |
| 08/21/2013 | CN102296931B High-speed polycrystalline diamond compact sheet |
| 08/20/2013 | US8511405 Drill bit with tiered cutters |