| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 01/27/2010 | CN201391234Y Multiblade drilling bit and drilling bit seat thereof |
| 01/27/2010 | CN201391233Y Raise boring bit |
| 01/27/2010 | CN201389999Y Enhancing diamond compact |
| 01/27/2010 | CN101636551A Device or actuating a bottom tool |
| 01/26/2010 | US7651170 Bore head for microbore operation |
| 01/26/2010 | US7650944 Vessel for well intervention |
| 01/26/2010 | CA2582200C Dynamic vibrational control |
| 01/24/2010 | CA2672894A1 Placement of cutting elements on secondary cutting structures of drilling tool assemblies |
| 01/24/2010 | CA2672506A1 Methods for designing secondary cutting structures for a bottom hole assembly |
| 01/21/2010 | WO2010009430A2 Methods of forming thermally stable polycrystalline diamond cutters |
| 01/21/2010 | WO2010009416A2 Methods of forming polycrystalline diamond cutters |
| 01/21/2010 | WO2010009085A2 System, program product, and related methods for bit design optimization and selection |
| 01/21/2010 | WO2010008990A2 Earth boring tools and methods of making earth boring tools including an impact material, and methods of drilling through casing |
| 01/21/2010 | WO2010008591A1 Method and apparatus for selectively leaching portions of pdc cutters used in drill bits |
| 01/21/2010 | WO2010008590A1 Optimized central pdc cutter and method |
| 01/21/2010 | WO2010008581A1 Method and apparatus for selectively leaching portions of pdc cutters already mounted in drill bits |
| 01/21/2010 | US20100012392 Shank structure for rotary drill bits |
| 01/21/2010 | US20100012391 Method and apparatus for selectively leaching portions of PDC cutters used in drill bits |
| 01/21/2010 | US20100012390 Method and apparatus for selectively leaching portions of PDC cutters already mounted in drill bits |
| 01/21/2010 | US20100012389 Methods of forming polycrystalline diamond cutters |
| 01/21/2010 | US20100012388 Optimized central PDC cutter and method |
| 01/21/2010 | US20100012387 Earth-boring tools and methods of making earth-boring tools including an impact material, and methods of drilling through casing |
| 01/21/2010 | US20100012386 Drill bits with enclosed slots |
| 01/21/2010 | US20100012385 Drill bits with enclosed fluid slots |
| 01/21/2010 | US20100012384 Steel Tooth Bit With Scooped Teeth Profile |
| 01/21/2010 | US20100012382 Drill bits with increased crown height |
| 01/21/2010 | US20100012381 Drill bits with notches and enclosed slots |
| 01/21/2010 | US20100012379 Joint for use in back reaming |
| 01/21/2010 | US20100012320 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 01/21/2010 | CA2730496A1 Earth-boring tools and methods of making earth-boring tools including an impact material, and methods of drilling through casing |
| 01/20/2010 | EP2146046A1 Drill head for a drilling device for creating drill holes in insufficiently stable foundation |
| 01/20/2010 | EP2145870A2 Polycrystaline diamond with a surface depleted of catalyzing material |
| 01/20/2010 | EP1561002B1 An improved rotary roller reamer |
| 01/20/2010 | CN201386512Y Drill bit provided with flexible nozzle |
| 01/20/2010 | CN201386511Y Conical double-helix drill bit of rotary sounding |
| 01/20/2010 | CN201386507Y Rotary blocking type hydraulic power pulse well-drilling tool |
| 01/20/2010 | CN101631928A Method of forming pockets for receiving drill bit cutting elements |
| 01/20/2010 | CN101629475A Floating composite seal device of oil cone bit |
| 01/19/2010 | US7647993 Thermally stable diamond bonded materials and compacts |
| 01/19/2010 | US7647992 Having improved properties of toughness without sacrificing wear resistance when compared to conventional polycrystalline diamond materials; for drill bits |
| 01/19/2010 | US7647991 Cutting structure for earth-boring bit to reduce tracking |
| 01/19/2010 | CA2516649C Drill shoe |
| 01/19/2010 | CA2510081C Drilling with casing |
| 01/14/2010 | WO2010005891A2 Infiltrated, machined carbide drill bit body |
| 01/14/2010 | WO2010005890A2 Earth-boring tools having features for affecting cuttings flow and methods of forming the same |
| 01/14/2010 | WO2010005881A1 Steerable piloted drill bit, drill system, and method of drilling curved boreholes |
| 01/14/2010 | WO2009131969A3 Anti-tracking feature for rock bits |
| 01/14/2010 | WO2009117065A3 Portable coring machine |
| 01/14/2010 | US20100006345 Infiltrated, machined carbide drill bit body |
| 01/14/2010 | US20100006344 Drill bits with enclosed fluid slots and internal flutes |
| 01/14/2010 | US20100006343 Earth-boring tools having features for affecting cuttings flow and methods of forming the same |
| 01/14/2010 | US20100006338 Optimized reaming system based upon weight on tool |
| 01/13/2010 | EP2143872A1 Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element |
| 01/13/2010 | EP2142750A1 Release device |
| 01/13/2010 | EP2142749A2 Bit for drilling wells and associated drilling method |
| 01/13/2010 | EP2142748A1 Rotary drill bit with improved steerability and reduced wear |
| 01/13/2010 | CN101627178A Rotary drag bit and methods therefor |
| 01/13/2010 | CN101627177A Methods for applying wear-resistant material to exterior surfaces of earth-boring tools and resulting structures |
| 01/13/2010 | CN101624899A Drill of high pressure water jet long screw pile driver |
| 01/12/2010 | US7644786 Diamond bit steel body cutter pocket protection |
| 01/12/2010 | CA2517883C Full bore lined wellbores |
| 01/12/2010 | CA2496293C Extrusion auger with removable auger segments and removal tool |
| 01/09/2010 | CA2671235A1 On demand actuation system |
| 01/07/2010 | WO2010002629A2 Method to reduce carbide erosion of pdc cutter |
| 01/07/2010 | WO2009132079A3 Bi-steel percussive drill rod |
| 01/07/2010 | WO2009114599A3 Non-grease type bearing lubricant |
| 01/07/2010 | US20100000800 Rotary Drill Bits with Protected Cutting Elements and Methods |
| 01/07/2010 | US20100000799 Indenting Member for a Drill Bit |
| 01/07/2010 | US20100000798 Method to reduce carbide erosion of pdc cutter |
| 01/06/2010 | EP2141285A1 Drilling and mixing tool |
| 01/06/2010 | EP2140096A1 Apparatus and methods of milling a restricted casing shoe |
| 01/06/2010 | EP2140095A2 Elastomer material for high temperature roller cone bits |
| 01/06/2010 | CN201377288Y Drill |
| 01/06/2010 | CN101622422A Rotary drag bit and methods therefor |
| 01/06/2010 | CN101622421A Rotary drag bit |
| 01/06/2010 | CN101622420A Computer aided design of rock drilling bit |
| 01/06/2010 | CN100577982C A drill bit, a drill rod and a self drilling roof bolt |
| 01/05/2010 | US7641004 Drill bit |
| 01/05/2010 | US7641003 Downhole hammer assembly |
| 01/05/2010 | US7641002 Drill bit |
| 01/05/2010 | US7641001 Auger |
| 12/31/2009 | US20090324873 Methods for manufacturing ultrahard compacts |
| 12/31/2009 | US20090321146 Earth Boring Bit with DLC Coated Bearing and Seal |
| 12/31/2009 | US20090321145 Threaded nozzle for a cutter bit |
| 12/31/2009 | US20090321140 Reamer and methods for directional drilling |
| 12/31/2009 | US20090321139 Rotary Drill Bit Steerable System and Method |
| 12/31/2009 | US20090321138 Drill bit having functional articulation to drill boreholes in earth formations in all directions |
| 12/31/2009 | US20090321137 Drill bit having no gage pads and having the ability to drill vertically and laterally |
| 12/31/2009 | US20090321136 Drilling apparatus and method for drilling wells |
| 12/31/2009 | US20090321132 Electromagnetic energy assisted drilling system and method |
| 12/31/2009 | US20090320584 Rotary drill bits and systems for inspecting rotary drill bits |
| 12/30/2009 | WO2009158080A1 Threaded nozzle for a cutter bit |
| 12/30/2009 | WO2009157992A1 Drill bit having functional articulation to drill boreholes in earth formations in all directions |
| 12/30/2009 | WO2009157978A1 Drill bit having the ability to drill vertically and laterally |
| 12/30/2009 | WO2009157599A1 Hydraulic breaker assembly |
| 12/30/2009 | WO2009156739A2 Reaming tool |
| 12/30/2009 | WO2009156736A2 Reaming tool |
| 12/30/2009 | WO2009156569A1 Method and drilling apparatus for drilling |
| 12/30/2009 | WO2009156552A1 Drilling tool and method for widening and simultaneously monitoring the diameter of wells and the properties of the fluid |
| 12/30/2009 | WO2009140486A3 Conformal bearing for rock drill bit |