| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 10/08/2008 | CN101280666A Polycrystal diamond hard alloy complex sheet of surface groove with lack Co area |
| 10/08/2008 | CN101280665A Mash gas pumping drilling orifice expanding bit as well as expanding method thereof |
| 10/07/2008 | US7431107 Coring bit with uncoupled sleeve |
| 10/02/2008 | WO2008118897A1 Rotary drill bit with improved steerability and reduced wear |
| 10/02/2008 | WO2008051588A3 Articles having improved resistance to thermal cracking |
| 10/02/2008 | US20080236900 Cutting element apparatuses and drill bits so equipped |
| 10/02/2008 | US20080236899 Shrink fit sleeve assembly for a drill bit, including nozzle assembly and method thereof |
| 10/02/2008 | US20080236897 Expandable Downhole Tool |
| 10/02/2008 | CA2682365A1 Rotary drill bit with improved steerability and reduced wear |
| 10/01/2008 | EP1974119A1 Seal insert ring for roller cone bits |
| 10/01/2008 | EP1973695A2 Keyed connection for drill bit |
| 10/01/2008 | CN201125691Y Horizontal well horizontal segment reduced slanting core drill tool combination |
| 10/01/2008 | CN201125690Y Horizontal well horizontal segment increased slanting core drill tool combination |
| 10/01/2008 | CN201125674Y Multiple cone teeth mine rock bit |
| 10/01/2008 | CN101278101A Underreamer having radially extendable members |
| 10/01/2008 | CN101275396A Rotating extrusion concrete filling pile construction method and equipment |
| 10/01/2008 | CN100422502C Percussive drill bit |
| 09/30/2008 | US7428938 Percussion bit drill drive collar with retention mechanism and method of assembling |
| 09/30/2008 | US7428937 Automated, low profile drilling/bolting module with gripper |
| 09/30/2008 | CA2476787C Integrated magnetic ranging tool |
| 09/25/2008 | WO2008073308B1 Displacement members and methods of using such displacement members to form bit bodies of earth boring rotary drills bits |
| 09/25/2008 | US20080230280 Polycrystalline diamond having improved thermal stability |
| 09/25/2008 | US20080230279 Hard compact and method for making the same |
| 09/25/2008 | US20080230278 Fixed cutter drill bit for abrasive applications |
| 09/24/2008 | EP1971749A2 Drill bits with bearing elements for reducing exposure of cutters |
| 09/24/2008 | CN201121488Y Drilling bit plug for casing tube well drilling |
| 09/24/2008 | CN100420541C Method for producing tools especially arilling bit or milling cutter |
| 09/23/2008 | US7426969 Bits and cutting structures |
| 09/23/2008 | CA2419709C Semiconductive polycrystalline diamond |
| 09/18/2008 | WO2008112272A1 System, method, and apparatus for passive and active updrill features on roller cone drill bits |
| 09/18/2008 | WO2008112262A1 Method of forming pockets for receiving drill bit cutting elements |
| 09/18/2008 | WO2008112117A1 Bit rebounding bumper for down-the-hole rock drilling hammer |
| 09/18/2008 | WO2008091654A3 Rotary drag bit |
| 09/18/2008 | WO2008016868A9 Downhole abrading tool having a taggant injection assembly for indicating excessive wear |
| 09/18/2008 | US20080226943 Composite Articles |
| 09/18/2008 | US20080223623 Polycrystalline diamond constructions having improved thermal stability |
| 09/18/2008 | US20080223622 Earth-boring tools having pockets for receiving cutting elements therein and methods of forming such pockets and earth-boring tools |
| 09/18/2008 | US20080223621 includes a substrate material attached to the ultra-hard material body to facilitate attachment of the resulting compact construction to an application device by conventional method such as welding and brazing; ultrahard material is free of group 8 metals; cutting and drilling applications |
| 09/18/2008 | US20080223620 Drilling machine structure |
| 09/18/2008 | US20080223619 System, method, and apparatus for passive and active updrill features on roller cone drill bits |
| 09/18/2008 | US20080223575 Casing and liner drilling bits and reamers, cutting elements therefor, and methods of use |
| 09/18/2008 | US20080222966 Cutters have improved wear resistance, impact strength and cutter life; comprises a table of polycrystalline diamond bonded to a substrate, particularly a cemented carbide, along a non-planar interface; drill bits |
| 09/18/2008 | CA2679749A1 Method of forming pockets for receiving drill bit cutting elements |
| 09/17/2008 | CN101268246A Steerable drilling system |
| 09/16/2008 | US7426459 Methods for designing single cone bits and bits made using the methods |
| 09/16/2008 | US7424922 Rotary valve for a jack hammer |
| 09/16/2008 | CA2552031C Mill and pump-off sub |
| 09/12/2008 | WO2008109522A1 High productivity core drilling system |
| 09/12/2008 | WO2008107694A1 Downhole tool |
| 09/12/2008 | WO2008092113A3 Rotary drag bit and methods therefor |
| 09/12/2008 | CA2679933A1 High productivity core drilling system |
| 09/12/2008 | CA2679547A1 Downhole tool |
| 09/10/2008 | EP1781891B1 Method for manufacturing a drilling tool with an elastomer seal having graded properties |
| 09/09/2008 | CA2297864C Drill bit having canted seal |
| 09/04/2008 | WO2008106022A1 Method and apparatus for collecting drill bit performance data |
| 09/04/2008 | WO2008104179A2 Drilling head for reborinq a stuck valve |
| 09/04/2008 | WO2008021628A3 Tin seat for rock drill insert |
| 09/04/2008 | US20080210473 Hybrid carbon nanotube reinforced composite bodies |
| 09/04/2008 | CA2685063A1 Drilling head for reboring a stuck valve |
| 09/04/2008 | CA2676459A1 Method and apparatus for collecting drill bit performance data |
| 09/03/2008 | CN201110132Y Extrusion-proof combined reaming bit for mining |
| 09/03/2008 | CN201110131Y Bearing sealing structure for roller bit |
| 09/03/2008 | CN201110130Y Antiwear sliding bearing of three teeth roller bit |
| 09/03/2008 | CN201110129Y Steel tooth roller bit with reinforced tooth top |
| 09/03/2008 | CN201110128Y Electric wall perforator |
| 09/03/2008 | CN201110127Y Drilling tool combination being suitable for quick welldrilling |
| 09/03/2008 | CN101258301A One-piece drill bit for single-pass anchor bolting and single pass drilling apparatus |
| 09/03/2008 | CN101255783A Improved large diameter air reverse circulation drill bit structure |
| 09/02/2008 | US7419018 Cam assembly in a downhole component |
| 09/02/2008 | US7419017 Multi-sectional percussive drill bit assembly |
| 09/02/2008 | US7419016 Bi-center drill bit |
| 09/02/2008 | CA2486012C Rotary hammerdrill bit |
| 08/28/2008 | WO2008104005A2 Casing window milling assembly |
| 08/28/2008 | WO2008103414A1 Hardfacing around ball loading hole for earth-boring bit |
| 08/28/2008 | WO2008103413A1 Drilling bit having a cutting element. co-sintered with a cone structure |
| 08/28/2008 | WO2008102324A1 Cutting elements |
| 08/28/2008 | WO2008073307A3 Impregnated bit with changeable hydraulic nozzles |
| 08/28/2008 | WO2008070052A3 Expandable reamers for earth boring applications |
| 08/28/2008 | US20080205994 Drill bit and a single pass drilling apparatus |
| 08/28/2008 | US20080202821 Multi-Layer Encapsulation of Diamond Grit for Use in Earth-Boring Bits |
| 08/28/2008 | US20080202820 Consolidated hard materials, earth-boring rotary drill bits including such hard materials, and methods of forming such hard materials |
| 08/28/2008 | US20080202819 Reversible cutting tool with shield |
| 08/28/2008 | US20080202818 Rotary Roller Reamer |
| 08/28/2008 | US20080202817 Hardfacing Around Ball Loading Hole for Earth-Boring Bit |
| 08/28/2008 | US20080202814 Earth-boring tools and cutter assemblies having a cutting element co-sintered with a cone structure, methods of using the same |
| 08/28/2008 | DE202008003691U1 Bohrmesserkopfbaugruppe Bohrmesserkopfbaugruppe |
| 08/28/2008 | CA2854304A1 Carbide cutting insert |
| 08/28/2008 | CA2678434A1 Drilling bit having a cutting element. co-sintered with a cone structure |
| 08/27/2008 | EP1960630A1 Earth-boring rotary drill bits and methods of forming earth-boring rotary drill bits |
| 08/27/2008 | EP1784582A4 Seal for a bearing assembly |
| 08/27/2008 | CN201106405Y Steel body PDC drilling bit |
| 08/27/2008 | CN201106404Y Reaming machine special for casing tube welldrilling |
| 08/27/2008 | CN101250983A Single tube all-directional drilling injection slip-casting drilling bit capable of fluid-control starting and stopping auxiliary slip-casting hole |
| 08/26/2008 | US7416036 Latchable reaming bit |
| 08/26/2008 | US7416035 Shaped inserts with increased retention force |
| 08/21/2008 | WO2008100455A1 Rotary drag bit |
| 08/21/2008 | WO2008100195A1 Tool |
| 08/21/2008 | WO2008100194A2 A drill bit and a single drilling apparatus |
| 08/21/2008 | WO2008098636A1 Cutting element for a rock drill and method for producing a cutting element for a rock drill |
| 08/21/2008 | WO2008070051A3 Restriction element trap for use with and actuation element of a downhole apparatus and method of use |