| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 10/29/2009 | US20090266544 Signal operated tools for milling, drilling, and/or fishing operations |
| 10/28/2009 | EP2111494A2 Rotary drag bit and methods therefor |
| 10/28/2009 | EP2111474A2 Methods and systems for compaction of powders in forming earth-boring tools |
| 10/28/2009 | CN101568696A Drill bit nozzle assembly, insert assembly including same and method of manufacturing or retrofitting a steel body bit for use with the insert assembly |
| 10/28/2009 | CN101566046A Anti-collapse hole drill tool |
| 10/28/2009 | CN100554644C Method of boring hard rock by means of tunnel boring machine containing hardened steel disc protruding from cutting head |
| 10/27/2009 | US7607498 Assembly and method for discharging fluid into a drill string of a rotary-vibratory drill |
| 10/22/2009 | WO2009129492A2 Matrix powder for matrix body fixed cutter bits |
| 10/22/2009 | US20090263646 coating grit with tungsten; encapsulate in carbide powder and organic green binder; mold with a matrix binder and abrasive particles and heat to melt binder to infiltrate granules and abrasives for uniform dispersion; drills |
| 10/22/2009 | US20090260895 Polycrystalline diamond materials, methods of fabricating same, and applications using same |
| 10/22/2009 | US20090260894 Jack Element for a Drill Bit |
| 10/22/2009 | US20090260893 Matrix powder for matrix body fixed cutter bits |
| 10/22/2009 | US20090260892 Drill rod, drill bit, and drilling tool |
| 10/22/2009 | US20090260891 Method of Mechanized Construction for Earth Wire Under-Bracing and Extendable Excavating Unit for Auger Crane |
| 10/22/2009 | US20090260890 Anti-tracking feature for rock bits |
| 10/22/2009 | US20090260888 Fiber Reinforced Pressure Compensator Diaphragm |
| 10/22/2009 | US20090260877 Cutting Elements and Earth-Boring Tools Having Grading Features, Methods of Forming Such Elements and Tools, and Methods of Grading Cutting Element Loss in Earth-Boring Tools |
| 10/21/2009 | CN201330561Y Coring bit with back reaming function |
| 10/21/2009 | CN101563521A Earth-boring rotary drill bits including bit bodies comprising reinforced titanium or titanium-based alloy matrix materials, and methods for forming such bits |
| 10/21/2009 | CN101563520A System for steering a drill string |
| 10/21/2009 | CN101560869A Convex head deflective wedge tooth |
| 10/21/2009 | CN100552182C Drill bit capable of matching rock hammer energy |
| 10/21/2009 | CN100552181C Bit shank structure of gadding machine |
| 10/20/2009 | US7604074 Cutting elements and bits incorporating the same |
| 10/20/2009 | US7604073 Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element |
| 10/20/2009 | CA2393754C Drilling bit for drilling while running casing |
| 10/18/2009 | CA2662996A1 Matrix powder for matrix body fixed cutter bits |
| 10/15/2009 | WO2009105420A3 Downhole tool bearing system containing diamond enhanced materials |
| 10/15/2009 | WO2009086286A3 Reamer with stabilizers for use in a wellbore |
| 10/15/2009 | US20090255735 Percussion Drilling Assembly and Hammer Bit with Gage and Outer Row Reinforcement |
| 10/14/2009 | CN201326379Y Composite gear of PDC drill bit |
| 10/14/2009 | CN201326378Y Expanding drill for foundation construction of high-tension line iron tower |
| 10/14/2009 | CN201326377Y Roller bit with helical teeth |
| 10/13/2009 | US7600590 Low projection inserts for rock bits |
| 10/13/2009 | US7600589 Rotary drill bits |
| 10/13/2009 | CA2429862C Drill bit |
| 10/08/2009 | WO2009124172A1 Earth boring bit with wear resistant bearing and seal |
| 10/08/2009 | WO2009124051A2 Down-the-hole drill drive coupling |
| 10/08/2009 | WO2009123964A1 Toggle overshot |
| 10/08/2009 | WO2009123918A2 System and method for one-trip hole enlargement operations |
| 10/08/2009 | WO2009123543A1 Drill bit for a rock drilling tool with increased toughness and method for increasing the toughness of such drill bits |
| 10/08/2009 | WO2009091825A3 Drilling assembly, drilling reamer arm assembly, and methods of drilling |
| 10/08/2009 | WO2009053903A3 A pick body |
| 10/08/2009 | WO2009046069A4 Drill bit for subterranean drilling |
| 10/08/2009 | US20090250266 Sectional back reamer for horizontal directional drilling |
| 10/08/2009 | CA2720063A1 Drill bit for a rock drilling tool with increased toughness and method for increasing the toughness of such drill bits |
| 10/08/2009 | CA2718669A1 Down-the-hole drill drive coupling |
| 10/07/2009 | CN201321821Y Hydraulic type underreamer while drilling |
| 10/07/2009 | CN100547223C Biomimetic golden-embedded diamond drilling bit and its production |
| 10/06/2009 | US7597159 Drill bits and drilling tools including abrasive wear-resistant materials |
| 10/06/2009 | US7597158 Drilling and hole enlargement device |
| 10/01/2009 | WO2009120750A2 Stabilizer and reamer system having extensible blades and bearing pads and method of using same |
| 10/01/2009 | WO2008104179A8 Drilling head for reborinq a stuck valve |
| 10/01/2009 | US20090242278 Hard material insert |
| 10/01/2009 | DE102008000840A1 Hartstoffeinsatz Hard material insert |
| 09/30/2009 | EP2105574A1 Hard material insert |
| 09/30/2009 | CN201318128Y Hard alloy ball-end teeth covered with CVD diamond coating for oil drill bits |
| 09/30/2009 | CN201318127Y Wedge-circular combination tooth PDC bit |
| 09/30/2009 | CN201318126Y Roller cone reamer |
| 09/30/2009 | CN101545257A Novel anchor rod construction process and spare and accessory parts thereof |
| 09/29/2009 | US7594554 Cutting element insert for backup cutters in rotary drill bits, rotary drill bits so equipped, and methods of manufacture therefor |
| 09/29/2009 | US7594553 Composite tool insert |
| 09/29/2009 | US7594552 Expandable reamer apparatus for enlarging boreholes while drilling |
| 09/29/2009 | US7594454 Methods of fabricating rotary drill bits |
| 09/29/2009 | CA2532773C Novel cutting structures |
| 09/24/2009 | WO2009117291A1 Lubricated diamond bearing drill bit |
| 09/24/2009 | WO2009116963A1 Methods and apparatus for expanding the diameter of a borehole |
| 09/24/2009 | WO2009086280A3 Reamer with improved hydraulics for use in a wellbore |
| 09/24/2009 | WO2009086081A3 Silicon carbide composite materials, earth-boring tools comprising such materials, and methods for forming the same |
| 09/24/2009 | WO2009083596A3 Drilling method including a cutting tool disengagement step |
| 09/24/2009 | DE112007002516T5 Bohrwerkzeug, selbstbohrender Gesteinsanker, Bohrer, Verankerungsvorrichtung für einen selbstbohrenden Gesteinsanker, Schaft für ein Bohrwerk und Endkupplung für ein Bohrwerkzeug Drill, self-drilling rock bolt, drill, anchoring device for a self-drilling rock bolt shank for a boring and end coupling for a drilling tool |
| 09/24/2009 | CA2718867A1 Portable coring machine |
| 09/24/2009 | CA2660101A1 Pneumatic impact piercing tool |
| 09/23/2009 | EP2102445A1 Methods of attaching a shank to a body of an earth boring drilling tool, and tools formed by such methods |
| 09/23/2009 | EP2102444A2 Impregnated bit with changeable hydraulic nozzles |
| 09/23/2009 | EP2102443A1 Device or actuating a bottom tool |
| 09/23/2009 | CN201314198Y Polycrystalline diamond composite sheet |
| 09/23/2009 | CN201314197Y Well drilling bit |
| 09/23/2009 | CN101542067A Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits |
| 09/22/2009 | US7591329 Auger with a movable gouge for making a borehole |
| 09/17/2009 | WO2009114737A2 Texturing of the seal surface for a roller cone rock bit |
| 09/17/2009 | WO2009114720A2 Texturing of the bearing surface for a roller cone rock bit |
| 09/17/2009 | WO2009114599A2 Non-grease type bearing lubricant |
| 09/17/2009 | WO2009088176A3 Vibration hammer |
| 09/17/2009 | WO2009086287A3 Reamer with balanced cutting structure for use in a wellbore |
| 09/17/2009 | WO2009079331A3 Erosion resistant fluid passageways and flow tubes for earth-boring tools, methods of forming the same and earth-boring tools including the same |
| 09/17/2009 | US20090232428 Texturing of the seal surface for a roller cone rock bit |
| 09/17/2009 | US20090229888 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk |
| 09/17/2009 | US20090229887 Rolling Cone Drill Bit Having Cutting Elements With Improved Orientations |
| 09/17/2009 | US20090229886 Non-Grease Type Bearing Lubricant |
| 09/16/2009 | EP2101038A1 A method for reducing residual stress in a roller cone bit |
| 09/16/2009 | EP2101037A1 A method for reducing residual stress in a roller cone bit |
| 09/16/2009 | EP2101036A1 A method for reducing residual stress in a roller cone bit |
| 09/16/2009 | EP2099944A2 Material containing diamond and an intermetallic compound |
| 09/16/2009 | CN101532391A In-hole drilling tool integrating drilling, slotting and punching coal seam and using method thereof |
| 09/16/2009 | CN101530692A Drilling tool filter screen for realizing protection of internal wall of drilling tool |
| 09/16/2009 | CN100540945C Chain drive system |
| 09/16/2009 | CN100540840C Drill bit for drilling borehole in stratum |
| 09/15/2009 | US7588102 High impact resistant tool |
| 09/15/2009 | CA2557923C Expandable underreamer/stabilizer |