| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 01/10/2013 | US20130008724 Drill bit with distributed force profile |
| 01/10/2013 | US20130008722 Down-Hole Hammer Drill |
| 01/10/2013 | US20130008721 Apparatus and method for installing ground anchoring systems |
| 01/10/2013 | US20130008719 Coring Tools and Related Methods |
| 01/10/2013 | DE102011051684A1 Werkzeughalter sowie Meißelträger und Bohrmeißel für einen Bohrkopf Tool holder and cutter holder and drill bit for a drill head |
| 01/09/2013 | CN202659174U Single-cone single-screw twist drill |
| 01/09/2013 | CN202659155U Polycrystalline diamond compact (PDC) drilling bit capable of being adapted to drilling of multiple strata |
| 01/09/2013 | CN202659154U Cold fixed PDC (Polycrystalline Diamond Compound) sheet drill bit |
| 01/09/2013 | CN202659153U Push plate type cylindrical drill |
| 01/09/2013 | CN202659152U Twin-cone and twin-screw spiral drill |
| 01/09/2013 | CN202659151U Scraping cutting and impacting combined drilling bit |
| 01/09/2013 | CN202659150U Spiral base-expanding integral drill |
| 01/09/2013 | CN202659149U Disc-type composite drill bit with impact cutting structure |
| 01/09/2013 | CN202659148U Disc-cutter compound drill bit |
| 01/09/2013 | CN202659147U Roller compound drill bit with impact cutting structure |
| 01/09/2013 | CN202659146U Double-drilling combined drill structure suitable for drilling operation of oil well and horizontal well |
| 01/09/2013 | CN202659140U Suspending type crash barrier spiral drilling machine |
| 01/09/2013 | CN102869849A At-bit evaluation of formation parameters and drilling parameters |
| 01/09/2013 | CN102865042A Horizontal directional penetration construction drill |
| 01/09/2013 | CN101886521B Pneumatic reverse circulating drilling tool for fixing holes |
| 01/08/2013 | US8347990 Matrix bit bodies with multiple matrix materials |
| 01/08/2013 | US8347989 Hole opener with hybrid reaming section and method of making |
| 01/08/2013 | US8347987 Apparatus and method for installing ground anchoring systems |
| 01/08/2013 | US8347986 Roller cone drill bit with lubricant pressure relief mechanism and method |
| 01/08/2013 | US8347683 Texturing of the seal surface for a roller cone rock bit |
| 01/08/2013 | CA2694104C Use of flexible member for borehole diameter measurement |
| 01/03/2013 | WO2013003333A1 Ultrasound assisted electrochemical catalyst removal for superhard materials |
| 01/03/2013 | WO2013000024A1 Fluid drilling head with powered swivel assembly |
| 01/03/2013 | WO2012148965A3 Drill bit for boring earth and other hard materials |
| 01/03/2013 | WO2012112684A3 Polycrystalline compacts including metallic alloy compositions in interstitial spaces between grains of hard material, cutting elements and earth-boring tools including such polycrystalline compacts, and related methods |
| 01/03/2013 | WO2012071246A3 Sacrificial catalyst polycrystalline diamond element |
| 01/03/2013 | WO2012069795A3 Downhole traction |
| 01/03/2013 | WO2011158190A3 Superhard cutter |
| 01/03/2013 | US20130001884 Sealing (packing) ring |
| 01/03/2013 | US20130000993 Polycrystalline superhard construction |
| 01/03/2013 | US20130000992 Compacts for producing polycrystalline diamond compacts, and related polycrystalline diamond compacts |
| 01/03/2013 | US20130000982 Erosion Resistant Hard Composite Materials |
| 01/02/2013 | EP2540451A2 Chisel tool |
| 01/02/2013 | CN202645558U Crawler-type single-head drilling rig coal cutter |
| 01/02/2013 | CN202645441U Artificial diamond ball gear |
| 01/02/2013 | CN202645440U Multi-wing-group petroleum drilling PDC (Polycrystalline Diamond Compact) drill bit |
| 01/02/2013 | CN202645439U PDC (polycrystalline diamond compact) bit for oil drilling |
| 01/02/2013 | CN202645438U PDC (Polycrystalline Diamond Compact) drill bit with high build-up rate |
| 01/02/2013 | CN202645437U Device controlling weight on bit relations of reaming while drilling |
| 01/02/2013 | CN202645436U Combined drill bit |
| 01/02/2013 | CN202645435U Underground coal mine sleeve type reamer bit |
| 01/02/2013 | CN202645434U Eccentric simultaneous casing drilling tool for expanding holes through rotation |
| 01/02/2013 | CN202645433U PDC (Polycrystalline Diamond Compact) drill bit |
| 01/02/2013 | CN202645432U Anchor rod drill bit |
| 01/02/2013 | CN202645431U Anchor rod drill bit |
| 01/02/2013 | CN102859110A Drill bit for percussive rock drilling |
| 01/02/2013 | CN102859109A A superhard insert and an earth boring tool comprising same |
| 01/02/2013 | CN102852547A Drilling and cutting integrated outburst preventing and permeability improving system for mines |
| 01/02/2013 | CN102852463A Rock-drilling drill bit spherical tooth |
| 01/02/2013 | CN102852462A Composite inserted tooth blade diamond comprehensive drill bit |
| 01/02/2013 | CN102852461A Core drilling drill with barrier crushing and chip-discharge functions |
| 01/02/2013 | CN102852456A Rock-core drill |
| 01/02/2013 | CN102174876B A drilling apparatus having in-line extending wings and driving method thereof |
| 01/02/2013 | CN102022084B Compound single cone bit |
| 01/01/2013 | US8342268 Tough carbide bodies using encapsulated carbides |
| 12/27/2012 | WO2012177735A2 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming such cutting elements for earth-boring tools |
| 12/27/2012 | WO2012177734A1 Fixed cutter drill bit with core fragmentation feature |
| 12/27/2012 | WO2012177278A1 Coated particles and related methods |
| 12/27/2012 | WO2012177252A1 Custom shaped blank |
| 12/27/2012 | WO2012174607A1 A drill bit |
| 12/27/2012 | WO2012149272A3 Downhole tools having mechanical joints with enhanced surfaces, and related methods |
| 12/27/2012 | WO2012134817A3 Methods of forming earth-boring tools and related structures |
| 12/27/2012 | WO2012094676A3 Apparatus and method for supplying electrical power to an electrocrushing drill |
| 12/27/2012 | WO2012089999A3 Large gauge concentric underreamer |
| 12/27/2012 | US20120325565 Thermally stable polycrystalline diamond |
| 12/27/2012 | US20120325564 Cutter tool insert having sensing device |
| 12/27/2012 | US20120325563 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming such cutting elements for earth-boring tools |
| 12/27/2012 | US20120325562 Diamond enhanced cutting elements, earth-boring tools employing diamond-enhanced cutting elements, and methods of making diamond-enhanced cutting elements |
| 12/27/2012 | US20120325558 Rock Drill Bit, a Drilling Assembly and a Method for Percussive Rock Drilling |
| 12/27/2012 | US20120324801 Thermally stable polycrystalline diamond |
| 12/27/2012 | US20120324799 Coated particles and related methods |
| 12/27/2012 | CA2840040A1 Coated particles and related methods |
| 12/27/2012 | CA2839696A1 Fixed cutter drill bit with core fragmentation feature |
| 12/27/2012 | CA2839694A1 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming such cutting elements for earth-boring tools |
| 12/26/2012 | CN202627977U Diamond bit |
| 12/26/2012 | CN202627976U Alloy electric pick |
| 12/26/2012 | CN202627975U Forward-type artificial diamond ball-tooth composite piece |
| 12/26/2012 | CN202627974U Abnormal alloy drill bit |
| 12/26/2012 | CN202627973U Drill bit of geological prospecting drilling machine |
| 12/26/2012 | CN202627972U Round-handle five-groove chisel |
| 12/26/2012 | CN202627971U Air hammer drill bit for novel debris discharging structure |
| 12/26/2012 | CN202627970U Slim hole reamer |
| 12/26/2012 | CN202627969U Cutting tool for mine drilling |
| 12/26/2012 | CN202627967U Multistage hydraulic punching drill |
| 12/26/2012 | CN202627961U Sliding-block-type concentric down-the-hole simultaneous casing drilling tool |
| 12/26/2012 | CN102839918A Ice directional drilling hot-melt drill |
| 12/26/2012 | CN102839917A Rotary hot-melting drill bit |
| 12/26/2012 | CN101614107B Matrix drill bits and method of manufacture |
| 12/25/2012 | US8337085 Air circulation ports in rotary rock bit journal bearing |
| 12/25/2012 | US8336649 Drill bit for earth boring |
| 12/25/2012 | US8336648 Mechanical attachment of thermally stable diamond to a substrate |
| 12/25/2012 | US8336647 Sonic drill bits and sonic drilling systems |
| 12/25/2012 | US8336646 Hybrid bit with variable exposure |
| 12/25/2012 | US8336645 Drilling cuttings mobilizer and method for use |
| 12/20/2012 | WO2012174206A2 Earth boring tools including retractable pads, cartridges including retractable pads for such tools, and related methods |