| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 10/11/2011 | CA2536684C Methods for modeling, displaying, designing, and optimizing fixed cutter bits |
| 10/06/2011 | WO2011123765A2 Down-the-hole drill hammer having an extendable drill bit assembly |
| 10/06/2011 | WO2011123628A2 Article of manufacture having a sub-surface friction stir welded channel |
| 10/06/2011 | WO2011121391A1 Drill bit |
| 10/06/2011 | WO2011121341A2 Downhole tool |
| 10/06/2011 | WO2011084233A3 Apparatus and method for reaming a wellbore during the installation of a tubular string |
| 10/06/2011 | US20110240378 Tapered Blade Profile on an Outer Bit |
| 10/06/2011 | US20110240377 Drill Bit Jack Element with a Plurality of Inserts |
| 10/06/2011 | US20110240376 Multilevel force balanced downhole drilling tools and methods |
| 10/06/2011 | US20110240374 Downhole tool having a friction stirred surface region |
| 10/06/2011 | US20110240373 Down-the-hole drill hammer having an extendable drill bit assembly |
| 10/06/2011 | US20110240372 Article of manufacture having a sub-surface friction stir welded channel |
| 10/06/2011 | US20110240367 Milling Tool for Establishing Openings in Wellbore Obstructions |
| 10/06/2011 | US20110240366 Inner Bit Disposed within an Outer Bit |
| 10/06/2011 | US20110239545 Compositions for manufacturing downhole tools and downhole tool parts |
| 10/06/2011 | CA2793799A1 Article of manufacture having a sub-surface friction stir welded channel |
| 10/06/2011 | CA2793798A1 Downhole tool having a friction stirred surface region |
| 10/05/2011 | EP2370661A1 Method of manufacturing and repairing fixed-cutter drag-type rotary tools with cutting control structures |
| 10/05/2011 | EP2370660A1 Method and apparatus for down-the-hole drilling |
| 10/05/2011 | EP2370659A2 Hybrid drill bit with secondary backup cutters positioned with high side rake angles |
| 10/05/2011 | CN202001012U High-efficiency tool bit |
| 10/05/2011 | CN202000904U Interchangeable drilling bucket capable of being applied to rotary drilling rig |
| 10/05/2011 | CN202000903U Impregnated tooth for impregnated bit |
| 10/05/2011 | CN202000902U Novel polycrystalline diamond compact anchor bit |
| 10/05/2011 | CN202000901U Self-rescue drill for avalanche |
| 10/05/2011 | CN202000900U Insertion-type scraper screw drill bit |
| 10/05/2011 | CN202000899U Drill bit of rotary drilling rig |
| 10/05/2011 | CN202000898U Acrodont gauge protection reamer with wear-resistant thrust steel ball |
| 10/05/2011 | CN202000897U Side gauge reamer with single thrust steel balls |
| 10/05/2011 | CN202000896U Side tooth diameter-keeping reamer with rolling-sliding bearing |
| 10/05/2011 | CN202000895U Blade jam release safety structure for hydraulic reamer |
| 10/05/2011 | CN202000894U Side tooth diameter-keeping reamer with thrust steel balls |
| 10/05/2011 | CN202000893U Side-tooth gauge-protection reamer with skidding thrust bearing |
| 10/04/2011 | US8028774 Thick pointed superhard material |
| 10/04/2011 | US8028773 Drill bit and cutter element having a fluted geometry |
| 10/04/2011 | US8028772 Internally dampened percussion rock drill |
| 10/04/2011 | US8028771 Polycrystalline diamond constructions having improved thermal stability |
| 10/04/2011 | US8028769 Reamer with stabilizers for use in a wellbore |
| 10/04/2011 | US8028765 Drill bit, drilling system, and related methods |
| 10/04/2011 | CA2614809C System and method for dynamic sealing around a drill stem |
| 10/02/2011 | CA2735108A1 Thermally stable polycrystalline diamond material with a gradient structure |
| 09/29/2011 | WO2011059685A4 Backup cutting elements on non concentric earth boring tools and related methods |
| 09/29/2011 | WO2011048368A3 Wellbore completion |
| 09/29/2011 | WO2010141579A4 Cutting elements including cutting tables with shaped faces configured to provide continuous effective positive back rake angeles, drill bits so equipped and methods of drilling |
| 09/29/2011 | US20110232969 Downhole tool deactivation and re-activation |
| 09/29/2011 | DE112009001998T5 Schneidwerkzeug mit Wasserinjektion zu dem Schneideinsatzschaft Cutting tools with water injection to the cutting insert stem |
| 09/28/2011 | EP2369127A1 A rock drill bit, a drilling assembly and a method for percussive rock drilling |
| 09/28/2011 | EP2368007A1 Drilling tool, in particular for drilling and/or cutting devices |
| 09/28/2011 | EP2368006A2 Cutting removal system for pdc drill bits |
| 09/28/2011 | EP2367654A1 Drilling tool for drilling and/or cutting device |
| 09/28/2011 | CN201991445U 一种筒桩旋挖钻斗 One kind of tubular pile auger drill bucket |
| 09/28/2011 | CN201991436U 多功能挤压螺纹桩机 Multifunctional extrusion screw pile |
| 09/28/2011 | CN201991434U 碾压式旋挖破岩钻斗 Compacted rock breaking drill bucket auger |
| 09/28/2011 | CN102203374A High pressure sintering with carbon additives |
| 09/28/2011 | CN102199994A Multi-level variable-diameter drilling tool |
| 09/28/2011 | CN102199993A Mining tricone bit with lifting power |
| 09/28/2011 | CN102199992A A spinning-reaming composite drill |
| 09/28/2011 | CN102199991A Drilling-fixing integrated device and method for yolk coal terrane |
| 09/28/2011 | CN102199989A Automatic drilling machine without drill rod |
| 09/28/2011 | CN102198506A Sintering method for matrix drill bits over 16' |
| 09/27/2011 | US8025113 Detritus flow management features for drag bit cutters and bits so equipped |
| 09/27/2011 | US8025112 Earth-boring bits and other parts including cemented carbide |
| 09/27/2011 | US8025107 Reamer with polycrystalline diamond compact inserts |
| 09/22/2011 | WO2011114167A2 Drill bit |
| 09/22/2011 | US20110226533 Progressive cutter size and spacing in core bit inner diameter |
| 09/22/2011 | US20110226532 Insert for an attack tool, method for making same and tools incorporating same |
| 09/22/2011 | US20110226531 System and method for measuring borehole conditions, in particular, verification of a final borehole diameter |
| 09/22/2011 | US20110225896 Methods of fabricating polycrystalline diamond elements and compacts using sp2-carbon-containing particles |
| 09/22/2011 | CA2793678A1 Drill bit |
| 09/21/2011 | CN201982044U 一种孕镶金刚石绳索取芯地质钻头 One kind of rope impregnated diamond drill core geology |
| 09/21/2011 | CN201982021U 一种聚晶金刚石复合片 One kind of polycrystalline diamond compact |
| 09/21/2011 | CN201982020U 一种复合旋切的采掘机 A composite veneer of mining machine |
| 09/21/2011 | CN201982019U 一种带定位孔或定位槽或复合定位孔的高效刀头 An efficient belt positioning holes or head positioning groove or composite positioning holes |
| 09/21/2011 | CN201982018U 一种高压旋喷分段扩孔钻头 A high pressure rotary jet segment reaming drill |
| 09/21/2011 | CN201982015U 摆动式挖坑机 Swing digging machine |
| 09/21/2011 | CN201981540U 预制管桩清孔工具 Precast Pipe Chiang Khong Tools |
| 09/21/2011 | CN101210480B Four-in-one drilling tool |
| 09/20/2011 | US8020645 Method of fabricating polycrystalline diamond and a polycrystalline diamond compact |
| 09/20/2011 | US8020644 Thermally stable polycrystalline diamond materials, cutting elements incorporating the same and bits incorporating such cutting elements |
| 09/20/2011 | US8020643 Ultra-hard constructions with enhanced second phase |
| 09/20/2011 | US8020642 Polycrystalline diamond abrasive elements |
| 09/20/2011 | US8020641 Drill bit with continuously sharp edge cutting elements |
| 09/20/2011 | US8020640 Impregnated drill bits and methods of manufacturing the same |
| 09/20/2011 | US8020639 Cutting removal system for PDC drill bits |
| 09/20/2011 | US8020638 Seal with dynamic sealing surface at the outside diameter |
| 09/20/2011 | US8020637 Downhole lubrication system |
| 09/20/2011 | US8020635 Expandable reamer apparatus |
| 09/20/2011 | US8020471 Method for manufacturing a drill bit |
| 09/20/2011 | CA2598801C Method for optimizing the location of a secondary cutting structure component in a drill string |
| 09/20/2011 | CA2532753C Pdc drill bit with cutter design optimized with dynamic centerline analysis having an angular separation in imbalance forces of 180 degrees for maximum time |
| 09/20/2011 | CA2530872C Earth penetrating rotary drill bit with helical ports |
| 09/20/2011 | CA2511725C Bit assembly |
| 09/15/2011 | WO2011112137A1 A rock drill bit, a drilling assembly and a method for percussive rock drilling |
| 09/15/2011 | WO2011062925A4 Down-the-hole drill hammer having a reverse exhaust system and segmented chuck assembly |
| 09/15/2011 | WO2011056162A3 A multifunctional screw drill and reaming device |
| 09/15/2011 | WO2011041693A4 Cutting elements configured to generate shear lips during use in cutting, earth-boring tools including such cutting elements, and methods of forming and using such cutting elements and earth-boring tools |
| 09/15/2011 | US20110220423 Tri-cone bit for high rpm drilling applications |
| 09/15/2011 | US20110220422 Earth - boring cutter mount and assembly |
| 09/15/2011 | US20110220417 Drill bits and methods of drilling curved boreholes |
| 09/15/2011 | US20110220416 Centralized Bi-Center Reamer and Method of Use |