| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 01/30/2013 | CN202706918U Underreaming bit and rotary drilling rig |
| 01/30/2013 | CN202706917U Hole bottom drilling tool of horizontal directional drilling rig |
| 01/30/2013 | CN202706914U Impulse jet flow assisting drilling tool |
| 01/30/2013 | CN102906364A Coring apparatus and methods |
| 01/30/2013 | CN102905819A Pick tool and method for making same |
| 01/30/2013 | CN102900372A Method and device for predicting reasonable service life of PDC (Polycrystalline Diamond Compact) drill bit |
| 01/30/2013 | CN102900371A Impacting and rotary-cut combined rock breaking tool |
| 01/30/2013 | CN102900370A Rock drilling machine |
| 01/30/2013 | CN102900369A Rock drilling machine capable of discharging rock debris conveniently |
| 01/30/2013 | CN102900360A Combined type digging and drilling machine |
| 01/29/2013 | US8361429 Polycrystalline diamond materials and related products |
| 01/29/2013 | US8360176 Brazing methods for PDC cutters |
| 01/29/2013 | US8360175 Convex crested insert with deflected wedge surfaces |
| 01/29/2013 | US8360174 Lead the bit rotary steerable tool |
| 01/29/2013 | US8360169 Apparatuses and methods relating to cooling a subterranean drill bit and/or at least one cutting element during use |
| 01/29/2013 | CA2711527C Vibration hammer |
| 01/29/2013 | CA2683763C Full bore lined wellbores |
| 01/24/2013 | WO2013013023A1 Abrasive coring bit |
| 01/24/2013 | WO2013012999A1 Brazed coated diamond-containing materials |
| 01/24/2013 | WO2013012919A1 Polycrystalline diamond compact including a carbonate-catalysed polycrystalline diamond table and applications therefor |
| 01/24/2013 | WO2013012471A1 Rock bit having a labyrinth seal/bearing protection structure |
| 01/24/2013 | WO2012162537A3 Jet arrangement on an expandable downhole tool |
| 01/24/2013 | WO2012100055A3 Multi-cycle pipe cutter and related methods |
| 01/24/2013 | US20130020136 High Thermal Conductivity Hardfacing |
| 01/24/2013 | US20130020135 Rock bit having a labyrinth seal/bearing protection structure |
| 01/24/2013 | US20130020134 Fixed Cutter Drill Bit With Core Fragmentation Feature |
| 01/24/2013 | CA2842480A1 Abrasive coring bit |
| 01/24/2013 | CA2836610A1 Rock bit having a labyrinth seal/bearing protection structure |
| 01/23/2013 | CN202689951U 可拆式地质钻头 Detachable geological drill |
| 01/23/2013 | CN202689950U PDC (Polycrystalline Diamond Compact) drill with cooling channel |
| 01/23/2013 | CN202689949U Multifunctional PDC (Polycrystalline Diamond Compact) bit |
| 01/23/2013 | CN202689948U Shockproof PDC (Polycrystalline Diamond Compact) drill |
| 01/23/2013 | CN202689947U Polycrystalline diamond compact (PDC) bit taking cylindrical surface of composite sheet as cutting front cutter surface |
| 01/23/2013 | CN202689946U Deep hole salvage drilling tool |
| 01/23/2013 | CN202689945U Improved multifunctional combined drill bit |
| 01/23/2013 | CN202689944U Sleeve type spiral pile machine drill |
| 01/23/2013 | CN202689943U Anti-inclining PDC (Polycrystalline Diamond Compact) drill |
| 01/23/2013 | CN202689942U PDC (Polycrystalline Diamond Compact) bit used for oil drilling |
| 01/23/2013 | CN202689941U Eccentric constant-width seal groove of cone bit |
| 01/23/2013 | CN202689940U Gas drainage drill bit |
| 01/23/2013 | CN202689939U Split-type PDC (Polycrystalline Diamond Compact) drill |
| 01/23/2013 | CN202689938U Polycrystalline diamond compact (PDC) bit with improved structure |
| 01/23/2013 | CN202689937U Drill bit for gas drainage hole of coal mine |
| 01/23/2013 | CN202689928U Drilling tool capable of controlling angle of horizontal hole |
| 01/23/2013 | CN202689924U Drilling device of bottom plate of coal mine tunnel |
| 01/23/2013 | CN102889057A High-efficiency wear-resistant cutting tool |
| 01/23/2013 | CN102003144B Fractal design method for roller bit gear teeth structure |
| 01/22/2013 | US8356679 Rotary drill bit with gage pads having improved steerability and reduced wear |
| 01/22/2013 | US8356398 Modular hybrid drill bit |
| 01/22/2013 | CA2650102C Earth drilling reamer with replaceable blades |
| 01/22/2013 | CA2597312C Cutting elements and bits incorporating the same |
| 01/22/2013 | CA2546159C Angular offset pdc cutting structures |
| 01/17/2013 | WO2013010063A1 Pdc disc cutters and rotary drill bits utilizing pdc disc cutters |
| 01/17/2013 | WO2013009496A2 Downhole cutting tool and method |
| 01/17/2013 | WO2012158367A3 Multi-position mechanical spear for multiple tension cuts while removing cuttings |
| 01/17/2013 | WO2012145400A3 Methods for forming polycrystalline materials including providing material with superabrasive grains prior to hpht processing, and polycrystalline compacts and cutting elements formed by such methods |
| 01/17/2013 | WO2012071449A3 Architectures, methods, and systems for remote manufacturing of earth-penetrating tools |
| 01/17/2013 | US20130015001 Polycrystalline diamond compacts, method of fabricating same, and various applications |
| 01/17/2013 | US20130015000 Innovative cutting element and cutting structure using same |
| 01/17/2013 | US20130014999 Pdc disc cutters and rotary drill bits utilizing pdc disc cutters |
| 01/17/2013 | US20130014998 Downhole cutting tool and method |
| 01/17/2013 | US20130014996 Braking device for an auger |
| 01/17/2013 | CA2840130A1 Pdc disc cutters and rotary drill bits utilizing pdc disc cutters |
| 01/17/2013 | CA2839718A1 Downhole cutting tool and method |
| 01/16/2013 | CN202673167U Three-arris drill pipe special for coal mine underground gas drainage |
| 01/16/2013 | CN202673158U Composite threaded nozzle |
| 01/16/2013 | CN202673157U Double-cone deflective wedge tooth |
| 01/16/2013 | CN202673156U Natural gas prospecting drill bit |
| 01/16/2013 | CN202673155U Diamond bit for drilling bedrock of foundation pile |
| 01/16/2013 | CN202673154U Drill bit used for mixing pile machine and mixing pile machine |
| 01/16/2013 | CN202673153U Novel hollow bit with four wing columns |
| 01/16/2013 | CN202673152U Multiple cutting head drilling-digging head used for detection of highway subgrade compaction degree |
| 01/16/2013 | CN202673151U Spiral drill bit |
| 01/16/2013 | CN202673150U Dedicated boring tool used for boring on fixed article in building |
| 01/16/2013 | CN202673149U Mixed bit |
| 01/16/2013 | CN202673148U Cross scraping-impacting combined type drill bit |
| 01/16/2013 | CN202673147U Small-caliber spring clamping core drill bit |
| 01/16/2013 | CN202673146U Expanding type ball-throwing structure for reamer while drilling |
| 01/16/2013 | CN202673144U South pole ultralow temperature bedrock drilling equipment |
| 01/16/2013 | CN102877829A Correcting mechanism for perpendicularity and section of pile hole and construction method for correcting mechanism |
| 01/16/2013 | CN102877795A Inserted joint casing for drilling machine |
| 01/16/2013 | CN102877791A Drill bit and drilling device |
| 01/16/2013 | CN102877790A Tricone bit oil storage compensation pressure balancing system |
| 01/16/2013 | CN102877789A Drilling and cutting integrated drilling bit |
| 01/16/2013 | CN102011555B Double-cone and double-helix drill bit for rotary drilling rig |
| 01/16/2013 | CN102011554B Bipyramid double-helix drill bit used for rotary drilling rig and provided with torpedo warhead at bottom end |
| 01/16/2013 | CN102011552B Single-cone single spiral drill bit of rotary drilling rig |
| 01/15/2013 | US8353974 Superabrasive elements, methods of manufacturing, and drill bits including same |
| 01/15/2013 | US8353371 Polycrystalline diamond compact including a substrate having a raised interfacial surface bonded to a leached polycrystalline diamond table, and applications therefor |
| 01/15/2013 | US8353370 Polycrystalline diamond cutting element structure |
| 01/15/2013 | US8353369 Percussion assisted rotary earth bit and method of operating the same |
| 01/15/2013 | CA2576681C Rock drill bit |
| 01/15/2013 | CA2538545C Fixed cutter drill bit for abrasive applications |
| 01/15/2013 | CA2502165C Bottom hole assembly |
| 01/10/2013 | WO2013006686A1 Innovative cutting element and cutting structure using the same |
| 01/10/2013 | WO2012158397A3 Wellbore tools having superhydrophobic surfaces, components of such tools, and related methods |
| 01/10/2013 | WO2012151061A3 Earth-boring tools and methods of forming such earth-boring tools |
| 01/10/2013 | WO2012121942A3 Polycrystalline tables, polycrystalline elements, and related methods |
| 01/10/2013 | WO2012121940A3 Methods of forming polycrystalline elements and structures formed by such methods |
| 01/10/2013 | WO2012109090A3 Helical drilling apparatus, systems, and methods |