| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 02/21/2006 | US7001120 Drilling tool |
| 02/21/2006 | US7000715 Rotary drill bits exhibiting cutting element placement for optimizing bit torque and cutter life |
| 02/21/2006 | US7000713 Blockless reamer |
| 02/21/2006 | US7000712 Bearing seal |
| 02/21/2006 | CA2419928C Enhanced gage protection for milled tooth rock bits |
| 02/21/2006 | CA2355393C Roller cone drill bit having non-axisymmetric cutting elements oriented to optimize drilling performance |
| 02/21/2006 | CA2345758C Rotary cone bit with functionally engineered composite inserts |
| 02/21/2006 | CA2253448C Hammer device |
| 02/20/2006 | CA2516558A1 Arcuate-shaped inserts for drill bits |
| 02/17/2006 | CA2515836A1 Deep drilling head and deep drilling process for drilling a manufactured part |
| 02/16/2006 | WO2006017414A2 Drill bit assembly |
| 02/16/2006 | WO2006017170A1 Drilling tool with elastomer seal having graded properties |
| 02/16/2006 | WO2006016137A1 Flow diverter |
| 02/16/2006 | US20060032677 Novel bits and cutting structures |
| 02/16/2006 | US20060032676 Drill bit |
| 02/16/2006 | US20060032675 Drill |
| 02/16/2006 | US20060032674 Roller cone drill bits with optimized bearing structures |
| 02/16/2006 | US20060032673 Elastomeric seal assembly having auxiliary annular seal components |
| 02/16/2006 | US20060032335 Bit body formed of multiple matrix materials and method for making the same |
| 02/16/2006 | DE102004052125B3 Production process for drilling crown involves cutting slots in straight strip material, fitting cutting elements in slots, and cutting strip to length and bending it to form crown |
| 02/16/2006 | CA2514713A1 Elastomeric seal assembly having auxiliary annular seal components |
| 02/15/2006 | EP1625276A1 Drill bit and system for drilling a borehole |
| 02/15/2006 | EP1625275A2 Drill bit and drilling system with underreamer- and stabilisation-section |
| 02/15/2006 | CN2758441Y Hydraulic pulse drill bit |
| 02/15/2006 | CN2758440Y Hard alloy drill bit |
| 02/15/2006 | CN2758439Y Eccentric drill bit |
| 02/15/2006 | CN2758438Y Special fine drill for hydraulic drill wagon |
| 02/15/2006 | CN1734054A Cutter with convex tooth-tip |
| 02/15/2006 | CN1734052A Method for forming concrete pile by means of reverse circulation hole-flushing and drilling system |
| 02/15/2006 | CN1734023A Cutting device and method for producing a cut hole |
| 02/15/2006 | CN1242155C Abrasive jet well drilling tool assembly |
| 02/15/2006 | CN1241722C Brick or rock boring tool |
| 02/14/2006 | US6997273 Blunt faced cutter element and enhanced drill bit and cutting structure |
| 02/09/2006 | WO2006015289A2 Seal for a bearing assembly |
| 02/09/2006 | WO2006012731A2 Integrated magnetic ranging tool |
| 02/09/2006 | US20060029314 Seal for a bearing assembly |
| 02/09/2006 | US20060028321 Integrated magnetic ranging tool |
| 02/09/2006 | US20060027403 Cutting elements of gage row and first inner row of a drill bit |
| 02/09/2006 | US20060027402 Method for hardfacing roller cone drill bit legs |
| 02/09/2006 | US20060027401 Wide groove roller cone bit |
| 02/09/2006 | US20060027399 Drill bit assembly |
| 02/09/2006 | US20060027398 Drill bit |
| 02/09/2006 | DE10161825B4 Schneidring für Diskenrollen von Teil- und/oder Vollschnittmaschinen Olive for Disk roles of partial and / or full-face machines |
| 02/08/2006 | CN2756803Y Single tri-cone rotary drill bit |
| 02/08/2006 | CN1732325A Bit assembly |
| 02/08/2006 | CN1730897A Geological bit and its manufacturing method |
| 02/07/2006 | US6994615 Cutting tools with two-slope profile |
| 02/07/2006 | US6994494 Device for producing bored piles |
| 02/02/2006 | US20060021802 Cutting elements and rotary drill bits including same |
| 02/02/2006 | US20060021801 Retrievable center bit |
| 02/02/2006 | US20060021800 Shirttails for reducing damaging effects of cuttings |
| 02/01/2006 | EP1621274A1 A drill bit |
| 02/01/2006 | EP1270162B1 Drill bit |
| 02/01/2006 | CN1729344A Bit assembly for a hammering drill |
| 02/01/2006 | CN1727634A New type drilling bit for petroleum |
| 01/31/2006 | US6991049 Cutting element |
| 01/31/2006 | US6991046 Expandable eccentric reamer and method of use in drilling |
| 01/31/2006 | CA2361259C Rock bit with load stabilizing cutting structure |
| 01/31/2006 | CA2274152C Drilling and/or coring tool |
| 01/31/2006 | CA2160084C High flow weld-in nozzle sleeve for rock bits |
| 01/26/2006 | WO2006010104A1 Method for manufacturing a drilling tool with an elastomer seal having graded properties |
| 01/26/2006 | US20060016626 Superabrasive cutting elements enhanced durability, method of producing same, and drill bits so equipped |
| 01/26/2006 | US20060016127 Superabrasive particle synthesis with controlled placement of crystalline seeds |
| 01/26/2006 | DE102004032551A1 Tunnelling machine for installation of sub-surface pipe has cutter head with three rotating sections |
| 01/25/2006 | EP1618283A1 Well string assembly |
| 01/25/2006 | EP1618277A1 Downhole tool having radially extendable members |
| 01/25/2006 | CN2753866Y Composite drill-mill bit |
| 01/25/2006 | CN2753493Y Multifunctional drill stem and drilling bit |
| 01/24/2006 | US6988569 Cutting element orientation or geometry for improved drill bits |
| 01/24/2006 | CA2355129C Roller cone for drill bit having improved resistance to fatigue cracking |
| 01/24/2006 | CA2260459C Improved earth-boring bits |
| 01/24/2006 | CA2257932C Cutter element adapted to withstand tensile stress |
| 01/19/2006 | US20060011388 Drill bit and cutter element having multiple extensions |
| 01/19/2006 | US20060011386 Impact excavation system and method with improved nozzle |
| 01/19/2006 | DE102004031600A1 Werkzeug zur Bearbeitung eines mineralischen Untergrundes Tool for machining a mineral subsoil |
| 01/18/2006 | EP1616076A2 Expanded liner system and method |
| 01/18/2006 | EP1616072A1 A rock drill bit assembly |
| 01/18/2006 | EP1616071A2 Drill bit |
| 01/18/2006 | EP1297240B1 A method for drilling with casing |
| 01/18/2006 | EP1210497B1 Bit connector |
| 01/18/2006 | EP0948700B1 Whipstock |
| 01/18/2006 | CN1237253C Twist bits |
| 01/18/2006 | CN1237252C Rock drill having flushing hole |
| 01/17/2006 | US6986395 Force-balanced roller-cone bits, systems, drilling methods, and design methods |
| 01/17/2006 | US6986297 manufacturing polycrystalline diamond compact (PDC) cutting elements with internal chambers or passages, such cutting elements being mountable on earth-boring drill bits and the like. |
| 01/12/2006 | WO2006004494A1 A drill bit |
| 01/12/2006 | US20060006606 Drilling tool with elastomer seal having graded properties |
| 01/12/2006 | US20060006003 Multiple inserts of different geometry in a single row of a bit |
| 01/12/2006 | US20060006002 Working tool for machining mineral constructional components |
| 01/12/2006 | US20060005370 Method for manufacturing a drilling tool with an elastomer seal having graded properties |
| 01/12/2006 | CA2571595A1 A drill bit |
| 01/11/2006 | EP1614853A2 Telescoping auger drill |
| 01/11/2006 | EP1614852A1 Hole opener |
| 01/11/2006 | EP1283936B1 Cutting tool and method of using same |
| 01/11/2006 | EP0865561B1 Reaming apparatus with enhanced stability and transition from pilot hole to enlarged bore diameter |
| 01/11/2006 | CN1236146C Method and apparatus for forming shaped pile by drilling, high-pressure letting to enlarge hole and pressure pouring of concrete |
| 01/10/2006 | US6983811 Reamer shoe |
| 01/10/2006 | CA2278933C Tool and method for drilling a lateral well |
| 01/10/2006 | CA2247332C Downhole core sampling and testing apparatus |
| 01/10/2006 | CA2146310C Bowed out chisel insert for rock bits |