| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 06/28/2007 | US20070144789 Representation of whirl in fixed cutter drill bits |
| 06/28/2007 | US20070144788 Setting utility access covers |
| 06/28/2007 | US20070144787 Drilling apparatus |
| 06/28/2007 | US20070144783 Rotating Systems Associated with Drill Pipe |
| 06/26/2007 | US7235211 Rotary cone bit with functionally-engineered composite inserts |
| 06/26/2007 | US7234550 Bits and cutting structures |
| 06/26/2007 | US7234549 Methods for evaluating cutting arrangements for drill bits and their application to roller cone drill bit designs |
| 06/26/2007 | US7234547 Apparatus and methods for sponge coring |
| 06/26/2007 | US7234542 Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 06/26/2007 | US7234541 DLC coating for earth-boring bit seal ring |
| 06/26/2007 | US7234538 Method for sinking a borehole in the ground and wet boring tool |
| 06/26/2007 | CA2418249C Drilling apparatus |
| 06/26/2007 | CA2295655C Core barrel |
| 06/26/2007 | CA2271795C Whipstock |
| 06/26/2007 | CA2267731C Multi-piece rotary cone drill bit seal |
| 06/21/2007 | WO2007070648A2 Drill bits with bearing elements for reducing exposure of cutters |
| 06/21/2007 | WO2007069030A1 Ultra-hard cutting tool components |
| 06/21/2007 | WO2007068866A1 Drag bit |
| 06/21/2007 | US20070137900 Rock drill bit |
| 06/21/2007 | US20070137899 Keyed connection for drill bit |
| 06/21/2007 | US20070137895 Percussion drill bit with V-shaped splines |
| 06/21/2007 | DE4307553B4 Spiralbohrer Twist Drill |
| 06/21/2007 | CA2633493A1 Drill bits with bearing elements for reducing exposure of cutters |
| 06/20/2007 | EP1797277A1 Drilling tool comprising a cutting element that is configured as a plate or head |
| 06/20/2007 | CN1982646A Drill bit |
| 06/20/2007 | CN1322220C Drill expanding aiguille of anchor shaft, anchor cable, stake and drill expanding technology |
| 06/20/2007 | CN1322219C Sealer for rotary drilling bit bearing |
| 06/20/2007 | CA2571697A1 Method of manufacturing a matrix body drill bit |
| 06/19/2007 | US7231992 Drill bit |
| 06/19/2007 | US7231991 Apparatus and methods for sponge coring |
| 06/19/2007 | CA2462990C Bits for use in drilling with casing and method of making the same |
| 06/19/2007 | CA2424398C Self relieving seal |
| 06/19/2007 | CA2305813C Drill bit inserts with interruption in gradient of properties |
| 06/19/2007 | CA2145128C Curved drilling apparatus |
| 06/14/2007 | WO2007066508A1 Cutting rod, cutting bit and cutting tool |
| 06/14/2007 | WO2007066186A1 Brittle material fracturing system |
| 06/14/2007 | US20070131459 Thermally stable polycrystalline ultra-hard constructions |
| 06/14/2007 | US20070131458 Cutting elements having cutting edges with continuous varying radii and bits incorporating the same |
| 06/14/2007 | US20070131457 Rolling cone drill bit having non-uniform legs |
| 06/14/2007 | US20070131456 Bit for drilling a hole |
| 06/14/2007 | US20070131455 Nozzle unit and method for excavating a hole in an object |
| 06/14/2007 | CA2571277A1 Cutting elements having cutting edges with continuous varying radii and bits incorporating the same |
| 06/14/2007 | CA2571062A1 Rolling cone drill bit having non-uniform legs |
| 06/13/2007 | EP1794406A1 Rock drill bit |
| 06/13/2007 | EP1794405A2 Rotary drill bit having cutting insert with a notch |
| 06/13/2007 | EP1614852B8 Hole opener |
| 06/13/2007 | CN1981145A Chain drive system |
| 06/13/2007 | CN1321255C Bottom hole hammer reverse circulation follow pipe drill |
| 06/12/2007 | US7228922 Drill bit |
| 06/12/2007 | US7228921 Ice auger covering apparatus |
| 06/12/2007 | CA2502950C Cutting structure based hydraulics |
| 06/12/2007 | CA2308451C A rotary drill bit and a roller cutter for rock drilling |
| 06/07/2007 | WO2007062490A1 Fluid flow control means for a reverse circulation down hole hammer |
| 06/07/2007 | US20070127308 Extrusion Auger With Removable Auger Segments and Removal Tool |
| 06/07/2007 | US20070125580 Jet Arrangement for a Downhole Drill Bit |
| 06/07/2007 | US20070125579 Roller Cone Drill Bits With Enhanced Cutting Elements And Cutting Structures |
| 06/06/2007 | EP1792052A2 Integrated magnetic ranging tool |
| 06/06/2007 | EP1616072B1 A rock drill bit assembly |
| 06/06/2007 | CN1320250C Drilling tool of the displacing type in soil and method |
| 06/05/2007 | US7225890 Cutting plate for a drill bit |
| 06/05/2007 | US7225886 Drill bit assembly with an indenting member |
| 06/05/2007 | CA2445061C Milling tool insert |
| 06/05/2007 | CA2350546C Method for making a sintered article and products produced thereby |
| 05/31/2007 | WO2007061612A1 Drill bit assembly |
| 05/31/2007 | WO2007060088A1 Material for producing parts or coatings adapted for high wear and friction-intensive applications, method for producing such a material and a torque-reduction device for use in a drill string made from the material |
| 05/31/2007 | US20070119631 Cutting element with canted interface surface and bit body incorporating the same |
| 05/31/2007 | US20070119626 Apparatus and methods for drilling a wellbore using casing |
| 05/31/2007 | US20070119625 Roof drilling system improvements |
| 05/30/2007 | CN2906032Y Polycrystalline diamond composite sheet with granular gradient |
| 05/30/2007 | CN2906031Y Plunger type micro-reaming while drilling tool |
| 05/30/2007 | CN2906030Y Mechanical sealing device for small-sized roller bit which is no more than 6'' |
| 05/30/2007 | CN2906029Y Channel reinforced roller bit |
| 05/30/2007 | CN2906028Y Single-roller bit |
| 05/30/2007 | CN2906027Y Three roller bit with different shifting axle bases |
| 05/30/2007 | CN2906026Y Double-barrel hard rock core drill for large-diameter pile hole |
| 05/30/2007 | CN1973108A Wear indication apparatus and method |
| 05/30/2007 | CN1318725C Pneumatic percussion pike with a steering mechanism |
| 05/30/2007 | CN1318723C Device and method for drilling into geologic terrane |
| 05/30/2007 | CA2569436A1 Steerable fixed cutter drill bit |
| 05/29/2007 | US7222682 Chain drive system |
| 05/24/2007 | WO2007059267A1 Hardfacing materials with highly conforming properties |
| 05/24/2007 | WO2007058905A1 Earth-boring rotary drill bits and methods of forming earth-boring rotary drill bits |
| 05/24/2007 | WO2007058904A1 Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies |
| 05/24/2007 | WO2007058802A1 Drill bit assembly with an indenting member |
| 05/24/2007 | WO2007058751A2 Recoil auger with clutch bearing |
| 05/24/2007 | US20070114072 Arrangement of Roller Cone Inserts |
| 05/24/2007 | US20070114071 Rotary Bit with an Indenting Member |
| 05/24/2007 | US20070114067 Drill Bit Assembly with an Indenting Member |
| 05/24/2007 | US20070114065 Drill Bit Assembly |
| 05/24/2007 | US20070114064 Hydraulic Drill Bit Assembly |
| 05/24/2007 | DE102005054041A1 Bohrwerkzeug zum Bohren in erdigem und/oder steinigem Grund Drilling tool for drilling in earthy and / or rocky bottom |
| 05/24/2007 | CA2630433A1 Hardfacing materials with highly conforming properties |
| 05/23/2007 | EP1788104A1 Material for producing parts or coatings adapted for high wear and friction-intensive applications, method for producing such a material and a torque-reduction device for use in a drill string made from the material |
| 05/23/2007 | EP1402146B1 Earth drilling device |
| 05/23/2007 | CN2903334Y Special drill bit for anchoring tech. |
| 05/23/2007 | CN1317479C Composite conic single gear drill bit |
| 05/23/2007 | CA2568672A1 Microwave sintering |
| 05/22/2007 | US7219753 Tool holder for annular core bit |
| 05/22/2007 | CA2522162C Method for simulating drilling of roller cone bits and its application to roller cone bit design and performance |
| 05/22/2007 | CA2462381C Fracture and wear resistant compounds and rock bits |