| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 12/30/2008 | US7469756 Tool with a large volume of a superhard material |
| 12/30/2008 | US7469618 Maintaining carburized case during neutral to the core heat treatment processes |
| 12/25/2008 | US20080314647 Rotary Drag Bit with Pointed Cutting Elements |
| 12/25/2008 | US20080314646 Barrier coated granules for improved hardfacing material using atomic layer deposition |
| 12/25/2008 | US20080314645 Stiffened Blade for Shear-type Drill Bit |
| 12/24/2008 | WO2008157704A2 Process of drill bit manufacture |
| 12/24/2008 | WO2008157371A1 Interchangeable bearing blocks for drill bits, and drill bits including same |
| 12/24/2008 | WO2008157110A2 Cutting element for subterranean drilling |
| 12/24/2008 | WO2008156520A1 Methods and apparatus for controlling cutting ribbons during a drilling operation |
| 12/24/2008 | WO2008154669A1 Method and device for drilling a hole in ground or rock material and forming a brace |
| 12/24/2008 | WO2008131095A3 Elastomer material for high temperature roller cone bits |
| 12/24/2008 | EP2004948A2 Matrix drill bits with back raked cutting elements |
| 12/24/2008 | EP2004947A1 Down-the-hole hammer, percussion bit assembly and method of enlarging a hole |
| 12/24/2008 | CA2691198A1 Method and device for drilling a hole in ground or rock material and forming a brace |
| 12/24/2008 | CA2690403A1 Process of drill bit manufacture |
| 12/24/2008 | CA2689401A1 Cutting element for subterranean drilling |
| 12/23/2008 | US7467674 Rock drilling equipment |
| 12/23/2008 | US7467671 Drill bit with protection member |
| 12/23/2008 | CA2567415C Protected lubricant reservoir for sealed bearing earth boring drill bit |
| 12/23/2008 | CA2551507C Downhole cutting device including a selectively presentable cutter |
| 12/23/2008 | CA2532762C Fixed-head bit with stabilizing features |
| 12/22/2008 | CA2599085A1 Lubricating agent and method for improving lubricity in a drilling system |
| 12/18/2008 | WO2008154196A2 Drill bit |
| 12/18/2008 | WO2008047218A3 Activating device for a downhole tool |
| 12/18/2008 | US20080310930 Method, Anchor and Drill for Anchoring the Anchor in an Anchoring Substrate |
| 12/18/2008 | US20080308321 Interchangeable bearing blocks for drill bits, and drill bits including same |
| 12/18/2008 | US20080308320 Drill Bit and Cutting Element Having Multiple Cutting Edges |
| 12/18/2008 | US20080308276 Cutting elements for casing component drill out and subterranean drilling, earth boring drag bits and tools including same and methods of use |
| 12/17/2008 | CN201165849Y Full-hole drilling diamond alloy detritus boring tool |
| 12/17/2008 | CN201165848Y Hole digger drill head |
| 12/17/2008 | CN201165631Y Cutter |
| 12/17/2008 | CN101326339A Earth boring bit with tilted hydrodynamic thrust bearing |
| 12/17/2008 | CN101324175A Diamond-silicon carbide combination drill teeth for petroleum probe boring and manufacture method thereof |
| 12/16/2008 | US7465096 Earth boring bit with tilted hydrodynamic thrust bearing |
| 12/16/2008 | US7464774 Drill bit and system for drilling a borehole |
| 12/16/2008 | US7464773 Enhanced drill bit lubrication apparatus and method |
| 12/16/2008 | US7464772 Downhole pressure pulse activated by jack element |
| 12/16/2008 | CA2541267C Stress relief feature on pdc cutter |
| 12/11/2008 | WO2008151313A1 Cutting tools and methods of making the same |
| 12/11/2008 | WO2008150765A1 Rotary drill bit with gage pads having improved steerability and reduced wear |
| 12/11/2008 | WO2008150290A1 A wired smart reamer |
| 12/11/2008 | WO2008149240A2 Bit for drilling wells and associated drilling method |
| 12/11/2008 | WO2008149098A2 Drilling apparatus with a pilot hole drilling assembly |
| 12/11/2008 | WO2008148158A1 Apparatus for use in drilling |
| 12/11/2008 | WO2008091654B1 Rotary drag bit |
| 12/11/2008 | WO2007142672A8 Multi-sectional percussive drill bit assembly |
| 12/11/2008 | US20080304928 Tool for chip removing machining as well as a basic body and an indexable cutting insert therefor |
| 12/11/2008 | US20080302579 Polycrystalline diamond cutting elements having improved thermal resistance |
| 12/11/2008 | US20080302578 Cutting elements and bits incorporating the same |
| 12/11/2008 | US20080302577 Drill Bit |
| 12/11/2008 | US20080302576 Earth-boring bits |
| 12/11/2008 | US20080302575 Fixed Cutter Bit With Backup Cutter Elements on Primary Blades |
| 12/11/2008 | US20080302573 Drilling tool for reducing cutter damage when drilling through formation changes, and methods of design and operation thereof |
| 12/11/2008 | US20080302572 Drill Bit Porting System |
| 12/11/2008 | US20080302534 Full bore lined wellbores |
| 12/11/2008 | DE19745947B4 Vorrichtung und Verfahren zum Bohren von Erdformationen Apparatus and method for drilling earth formations |
| 12/11/2008 | DE10390198B4 Träger für eine fliegende Schneiddiskenlagerung Support for a flying cutting disk storage |
| 12/11/2008 | CA2687739A1 A wired smart reamer |
| 12/11/2008 | CA2687544A1 Rotary drill bit with gage pads having improved steerability and reduced wear |
| 12/11/2008 | CA2685065A1 Bit for drilling wells and associated drilling method |
| 12/11/2008 | CA2597312A1 Cutting elements and bits incorporating the same |
| 12/10/2008 | CN201162496Y Surface vulcanized petroleum drilling tool |
| 12/10/2008 | CN201162494Y Drill bit alloy piece |
| 12/10/2008 | CN201162493Y Bidirectional drill-following reamer blade |
| 12/10/2008 | CN201162492Y Multi-aspect stereo stirring drilling bit used for soft soil or spongy soil reinforcement stirring pile |
| 12/10/2008 | CN201162489Y Full screw earth auger |
| 12/10/2008 | CN101321925A Cutting rod, cutting bit and cutting tool |
| 12/10/2008 | CN101319599A Side suction type reverse circulation drilling bit |
| 12/10/2008 | CN101319499A Pile forming method and device for screwed pedestal pile with large flow concrete filled by hole drilling pump |
| 12/10/2008 | CN100441505C Dual-phase hard material, method for the production thereof and its use |
| 12/09/2008 | US7461709 Multiple diameter cutting elements and bits incorporating the same |
| 12/09/2008 | US7461708 Elastomeric seal assembly having auxiliary annular seal components |
| 12/09/2008 | US7461706 Drilling apparatus with percussive action cutter |
| 12/04/2008 | WO2008147682A2 Fixed cutter bit and blade for a fixed cutter bit and methods for making the same |
| 12/04/2008 | WO2008147071A1 Hammer bit |
| 12/04/2008 | US20080296070 Cutter geometry for increased bit life and bits incorporating the same |
| 12/04/2008 | US20080296069 Novel core drill bit housing and core drill bit |
| 12/04/2008 | US20080296068 Hybrid drill bit with fixed cutters as the sole cutting elements in the axial center of the drill bit |
| 12/04/2008 | US20080296066 Bore hole sleeve reaming apparatus and method |
| 12/04/2008 | CA2724677A1 Hammer bit |
| 12/03/2008 | EP1997575A1 Consolidated hard material and applications |
| 12/03/2008 | CN201159050Y Knife blade type PDC drilling bit for petroleum and natural gas drilling |
| 12/03/2008 | CN201159049Y Coal/rock drilling bit with protection edge |
| 12/03/2008 | CN101315021A Automatic reducing borehole-enlarging drilling tool |
| 12/03/2008 | CN101314181A Nozzle substituted block for manufacturing tyre case PDC drill |
| 12/02/2008 | US7458430 Attachment means for drilling equipment |
| 11/27/2008 | WO2008144633A2 Steel tooth drill bit with improved tooth breakage resistance |
| 11/27/2008 | WO2008144036A2 Method of repairing diamond rock bit |
| 11/27/2008 | WO2008143577A1 A device for drilling in earth-layers and rock |
| 11/27/2008 | WO2008118725A3 Optimized machining process for cutting tubulars downhole |
| 11/27/2008 | US20080289881 Fixed cutter bit partial blade connection at bit center |
| 11/27/2008 | US20080289880 Fixed cutter bit and blade for a fixed cutter bit and methods for making the same |
| 11/27/2008 | DE112007000179T5 Lochbohrsystem Lochbohrsystem |
| 11/26/2008 | CN201155300Y Heat pressing diamond drill |
| 11/25/2008 | US7457734 Representation of whirl in fixed cutter drill bits |
| 11/25/2008 | US7455484 Cutting or breaking tool as well as cutting insert for the latter |
| 11/25/2008 | US7455129 Drilling and/or chiseling tool |
| 11/25/2008 | US7455126 Percussive drill bit, drilling system comprising such a drill bit and method of drilling a bore hole |
| 11/25/2008 | US7455125 Drilling tool equipped with improved cutting element layout to reduce cutter damage through formation changes, methods of design and operation thereof |
| 11/21/2008 | CA2694104A1 Use of flexible member for borehole diameter measurement |