| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 05/10/2013 | WO2013064438A1 Polycrystalline diamond construction and method for making same |
| 05/10/2013 | WO2013064433A2 Tip for a pick tool, method of making same and pick tool comprising same |
| 05/10/2013 | WO2013063900A1 Drilling tool and rotary drilling rig having same |
| 05/10/2013 | WO2013040408A3 Hole opener bearing arrangement |
| 05/10/2013 | WO2013040362A3 Methods of fabricating polycrystalline diamond, and cutting elements and earth-boring tools comprising polycrystalline diamond |
| 05/10/2013 | WO2013040332A3 Methods for attaching cutting elements to earth-boring tools and resulting products |
| 05/10/2013 | WO2013040292A3 Methods of forming polycrystalline compacts and resulting compacts |
| 05/10/2013 | WO2013040125A3 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods |
| 05/10/2013 | WO2012177735A3 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming such cutting elements for earth-boring tools |
| 05/10/2013 | WO2012024149A4 Rotational drill bits and drilling apparatuses including the same |
| 05/09/2013 | US20130115020 Rock drilling tool for rotational percussive machining of concrete, rock, masonry and such materials |
| 05/09/2013 | US20130112486 Resilient Bit Systems and Methods |
| 05/09/2013 | US20130112485 Plow-shaped cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods |
| 05/09/2013 | US20130112480 Borehole drill bit cutter indexing |
| 05/08/2013 | EP2588705A1 Bearing assembly for rotary drills |
| 05/08/2013 | EP2588704A1 Drill bits with anti-tracking features |
| 05/08/2013 | EP2588703A1 Remotely operable underwater drilling system and drilling method |
| 05/08/2013 | DE102011117866A1 Earth drilling apparatus has motor-gear unit, operating and holding unit, which is connected to motor-gear unit and auger, where motor-gear unit and auger are connected by torque-load limiting device |
| 05/08/2013 | DE102011085818A1 Gesteinsmeißel und Verfahren zur Herstellung eines Gesteinsmeißels A rock bit and method for manufacturing a rock bit |
| 05/08/2013 | CN202926226U Inserted joint casing for drilling machine |
| 05/08/2013 | CN202926217U Impact rotary cutting drill bit and rock cracking drilling machine using same |
| 05/08/2013 | CN202926216U Drill pipe with enlarging drill bit |
| 05/08/2013 | CN202926215U Non-excavation guiding instrument |
| 05/08/2013 | CN202926214U High pressure jet grouting segmented reamer bit |
| 05/08/2013 | CN103097642A Impregnated drill bits with integrated reamers |
| 05/08/2013 | CN103089156A Composite drill bit with cutter blade provided with cutter disk cutting structure |
| 05/08/2013 | CN103089155A Drilling tool of jackdrill |
| 05/08/2013 | CN103089154A Composite drill bit |
| 05/08/2013 | CN103089153A Wide-tooth cone composite drill bit |
| 05/08/2013 | CN103089152A Embedded type wide-tooth cone bit |
| 05/08/2013 | CN103084574A Preparation method of diamond bits and sintering device thereof |
| 05/08/2013 | CN101858200B Diamond composite sheet matrix with carbon potential gradient |
| 05/08/2013 | CN101743376B A wired smart reamer |
| 05/08/2013 | CN101589206B A drill bit and a single drilling apparatus |
| 05/07/2013 | US8437995 Drill bit and design method for optimizing distribution of individual cutter forces, torque, work, or power |
| 05/07/2013 | US8434573 Degradation assembly |
| 05/07/2013 | US8434572 Cutting elements for downhole cutting tools |
| 05/07/2013 | CA2650356C Pressurized fluid flow system for a reverse circulation hammer |
| 05/07/2013 | CA2535387C Thermally stable polycrystalline diamond cutting elements and bits incorporating the same |
| 05/02/2013 | WO2013062536A1 High-strength, high-hardness binders and drilling tools formed using the same |
| 05/02/2013 | WO2013060676A2 Drill bit having a sunken button and rock drilling tool for use with such a drill bit |
| 05/02/2013 | WO2013060491A1 Drill and production method for a drill |
| 05/02/2013 | WO2013059878A1 Reverse circulation hammer spline arrangement improvements |
| 05/02/2013 | WO2013028799A3 Downhole tool and method of use |
| 05/02/2013 | WO2012158322A3 High abrasion low stress diamond cutting element |
| 05/02/2013 | WO2012145351A3 High diamond frame strength pcd materials |
| 05/02/2013 | US20130105232 Rotary drill bit including polycrystalline diamond cutting elements |
| 05/02/2013 | US20130105231 Earth boring cutting inserts and earth boring bits including the same |
| 05/02/2013 | US20130105230 Abrasive-impregnated cutting structure having anisotropic wear resistance and drag bit including same |
| 05/02/2013 | US20130105229 Cone Retention and Tapered Bearing Preload System for Roller Cone Bit |
| 05/02/2013 | US20130105228 Grease Distribution System for Roller Cone Bit Passing through a Retaining Bore in the Head |
| 05/02/2013 | CA2852971A1 Reverse circulation hammer spline arrangement improvements |
| 05/02/2013 | CA2852150A1 Drill bit having a sunken button and rock drilling tool for use with such a drill bit |
| 05/01/2013 | EP2586960A1 Drill bit having a sunken button and rock drilling tool for use with such a drill bit |
| 05/01/2013 | EP2585669A2 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming cutting elements for earth-boring tools |
| 05/01/2013 | EP2585668A1 Erosion resistant hard composite materials |
| 05/01/2013 | CN202913957U Inner core opening device of drill bit used for drilling and provided with detachable inner core |
| 05/01/2013 | CN202913956U Bit nozzle for well drilling |
| 05/01/2013 | CN202913955U Split type tricone bit for mining |
| 05/01/2013 | CN202913954U Tooth claw of mining tricone bit |
| 05/01/2013 | CN202913953U Drilling bit |
| 05/01/2013 | CN202913939U Water-circulating rock impact drill |
| 05/01/2013 | CN103080459A Bearing assembly for rotary drills |
| 05/01/2013 | CN103080458A Drill bits with anti-tracking features |
| 05/01/2013 | CN103075107A Diamond gauge protection composite tooth drill bit and manufacture method of diamond gauge protection composite tooth drill bit |
| 05/01/2013 | CN103075106A Hollow rolling and sliding composite bearing for rock bit |
| 05/01/2013 | CN103075105A Cyclone type jetting drill bit |
| 05/01/2013 | CN103074887A Drilling/spraying integrated foundation treatment method and special drilling rig component |
| 05/01/2013 | CN103072332A Polycrystalline diamond compact and preparation method thereof |
| 05/01/2013 | CN102061887B Tooth placement drill bit formed by mixing hard alloy teeth with polycrystalline diamond clad sheets |
| 05/01/2013 | CN101881160B Fixed point sampler |
| 05/01/2013 | CN101652533B Fiber-containing diamond-impregnated cutting tools |
| 04/30/2013 | US8430187 Directional sidetrack well drilling system |
| 04/25/2013 | WO2013059374A1 Drill bits having rotating cutting structures thereon |
| 04/25/2013 | WO2013059344A2 Reverse circulation bit assembly |
| 04/25/2013 | WO2013059063A2 Polycrystalline diamond compacts, related products, and methods of manufacture |
| 04/25/2013 | WO2012174206A3 Earth boring tools including retractable pads, cartridges including retractable pads for such tools, and related methods |
| 04/25/2013 | WO2012149086A3 Polycrystalline diamond compact cutters with conic shaped end |
| 04/25/2013 | WO2012109234A3 System and method for leg retention on hybrid bits |
| 04/25/2013 | US20130098693 Polycrystalline diamond compact including a substrate having a raised interfacial surface bonded to a leached polycrystalline diamond table, and applications therefor |
| 04/25/2013 | US20130098692 Drill bit |
| 04/25/2013 | US20130098691 High-strength, high-hardness binders and drilling tools formed using the same |
| 04/25/2013 | US20130098688 Drill bits having rotating cutting structures thereon |
| 04/25/2013 | CA2855717A1 Reverse circulation bit assembly |
| 04/24/2013 | EP2582905A2 Superhard cutter |
| 04/24/2013 | CN202900155U Star bit strip-type silk mouth grouting pipe |
| 04/24/2013 | CN202900052U Double-acting ultrahard strong lateral-cutting window-opening drill bit with composite teeth |
| 04/24/2013 | CN202900051U Double-layer casing window-opening drill bit |
| 04/24/2013 | CN202900050U Diamond impregnated side-wall coring bit |
| 04/24/2013 | CN202900049U Hand-operated grooved helical auger |
| 04/24/2013 | CN202900048U Diamond-setting side-wall coring bit |
| 04/24/2013 | CN202900047U Push rod type rock coring bit |
| 04/24/2013 | CN202900046U Geological drill |
| 04/24/2013 | CN103069108A Apparatus and methods for real time communication in drill strings |
| 04/24/2013 | CN103069107A Apparatus and methods for real time communication between drill bit and drilling assembly |
| 04/24/2013 | CN103069099A Shaped cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods |
| 04/24/2013 | CN103069098A Cutting elements including nanoparticles in at least one portion thereof, earth-boring tools including such cutting elements, and related methods |
| 04/24/2013 | CN103069097A Cemented carbide compositions having cobalt-silicon alloy binder |
| 04/24/2013 | CN103069096A Two pipe horizontal directional drilling system |
| 04/24/2013 | CN103061798A Method for extracting coal bed methane through down-hole bedding long borehole consecutive cave building |