Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 10 - Drill bits
Patents for E21B 10 - Drill bits (19,464)
10/2014
10/30/2014US20140318206 Core lifter
10/30/2014US20140318024 Methods of forming earth-boring tools including sinterbonded components
10/28/2014US8869920 Downhole tools and parts and methods of formation
10/28/2014US8869919 Drag bit with utility blades
10/28/2014US8869914 High power laser workover and completion tools and systems
10/23/2014US20140311810 Polycrystalline diamond composite compact elements and methods of making and using same
10/23/2014US20140311809 Fiber-Containing Diamond-Impregnated Cutting Tools And Methods Of Forming And Using Same
10/23/2014US20140311808 Excavation tool
10/23/2014US20140311802 Circumferential and longitudinal cutter coverage in continuation of a first bit diameter to a second expandable reamer diameter.
10/23/2014US20140311801 Drill Bit with Self-Adjusting Pads
10/21/2014US8865309 Releasable corrosion inhibitors
10/21/2014US8863864 Liquid-metal-embrittlement resistant superabrasive compact, and related drill bits and methods
10/21/2014US8863860 System and method of improved depth of cut control of drilling tools
10/21/2014US8863843 Hydraulic actuation of a downhole tool assembly
10/16/2014US20140305710 Downhole drilling assembly
10/16/2014US20140305708 Reamer With Replaceable Cutters
10/16/2014US20140305703 Drill Bit with Extendable Gauge Pads
10/14/2014US8858870 Earth-boring bits and other parts including cemented carbide
10/14/2014US8858663 Methods of forming cutting elements having different interstitial materials in multi-layer diamond tables
10/14/2014US8857541 Diamond transition layer construction with improved thickness ratio
10/14/2014US8857537 Method and apparatus for down-the-hole drilling
10/09/2014WO2014165324A1 Methodologies for manufacturing short matrix bits
10/09/2014WO2014165120A1 Drill bit with extension elements in hydraulic communications to adjust loads thereon
10/09/2014WO2014164656A1 Methods of forming modified thermoplastic structures for down-hole applications, and related down-hole tools
10/09/2014WO2014164114A1 Wear resistant plates on a leading transitional surface of the leg for a rotary cone drill bit
10/09/2014WO2014161816A2 Superhard constructions & methods of making same
10/09/2014WO2014161212A1 Detachable combined-type drive key for rotary drilling rig power head
10/09/2014US20140301679 Bearings for downhole tools, downhole tools incorporating such bearings, and methods of cooling such bearings
10/09/2014US20140299388 Drill bit for rock drilling tool, and rock drilling tool
10/09/2014US20140299387 Cutting element incorporating a cutting body and sleeve and method of forming thereof
10/09/2014US20140299385 Cutters forming a helix oriented in the direction of reaming
10/09/2014US20140299384 Wear resistant plates on a leading transitional surface of the leg for a rotary cone drill bit
10/09/2014US20140299311 System and Method for Accessing Subterranean Deposits
10/09/2014US20140298728 Cemented carbide composite for a downhole tool
10/08/2014EP2787163A1 Excavation tool
10/08/2014EP2785949A1 Drill bit with seal having spheres in a matrix seal material
10/08/2014EP2785948A1 Roller reamer compound wedge retention
10/07/2014US8854045 Electronics for a thin bed array induction logging system
10/07/2014US8852546 Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance
10/07/2014US8852304 Thermally stable diamond bonded materials and compacts
10/07/2014US8851208 Cutting elements including adhesion materials, earth-boring tools including such cutting elements, and related methods
10/07/2014US8851207 Earth-boring tools and methods of forming such earth-boring tools
10/07/2014US8851206 Oblique face polycrystalline diamond cutter and drilling tools so equipped
10/07/2014US8851205 Method and apparatus for reaming well bore surfaces nearer the center of drift
10/07/2014US8851204 Mud motor with integrated percussion tool and drill bit
10/02/2014WO2014160890A1 Methods of mitigating bituminous material adhesion using nano-particles
10/02/2014WO2014160625A1 Calibrations for a well drilling apparatus
10/02/2014WO2014159838A1 Cutting structures for fixed cutter drill bit and other downhole cutting tools
10/02/2014WO2014159833A1 Cutting structures for fixed cutter drill bit and other downhole cutting tools
10/02/2014WO2014159079A1 Underreamer for increasing a wellbore diameter
10/02/2014WO2014158645A1 Fluid driven drilling motor
10/02/2014WO2014158026A1 Drilling equipment device especially arranged for reaming a borehole in a rock formation and method of reaming a borehole in a rock formation
10/02/2014WO2014155055A2 Cutting element
10/02/2014US20140291037 Diamond bonded construction with improved braze joint
10/02/2014US20140291036 Multilayer structured coatings for cutting tools
10/02/2014US20140291035 Drill bit having a sunken button and rock drilling tool for use with such a drill bit
10/02/2014US20140291034 Coring Apparatus And Methods To Use The Same
10/02/2014US20140291033 Methodologies for manufacturing short matrix bits
10/01/2014EP2783064A1 Rolling cutter placement on pdc bits
09/2014
09/30/2014US8844656 Seal assembly for a rotary earth bit
09/30/2014US8844655 Drill string tooling joint
09/30/2014US8844651 Three dimensional fluidic jet control
09/30/2014US8844635 Corrodible triggering elements for use with subterranean borehole tools having expandable members and related methods
09/30/2014CA2802674C Fracturing method to reduce tortuosity
09/30/2014CA2797700C Polycrystalline diamond compacts, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts and earth-boring tools
09/30/2014CA2736710C Drill bit with adjustable axial pad for controlling torsional fluctuations
09/30/2014CA2729542C Reaming tool
09/30/2014CA2726751C Method of bonding poly-crystalline diamonds to wear surfaces
09/25/2014WO2014152699A1 Underreamer for increasing a wellbore diameter
09/25/2014WO2014152609A1 Underreamer for increasing a wellbore diameter
09/25/2014WO2014151704A2 Controller for downhole tool
09/25/2014WO2014149223A1 Drill bit
09/25/2014WO2014146913A1 Roller cutter with improved sealing
09/25/2014US20140284117 Superabrasive cutters with grooves on the cutting face and drill bits and drilling tools so equipped
09/25/2014US20140284116 Abrasive wear-resistant materials and earth-boring tools comprising such materials
09/25/2014US20140284115 Polycrystalline diamond construction and method of making same
09/25/2014US20140284114 Earth-boring tools and components thereof including material having hard phase in a metallic binder, and metallic binder compositions for use in forming such tools and components
09/25/2014US20140284113 Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methods
09/25/2014US20140284109 Method and apparatus for reaming well bore surfaces nearer the center of drift
09/24/2014EP2781684A1 Roller cutter with improved sealing
09/24/2014EP2780533A1 Downhole tools including anomalous strengthening materials and related methods
09/24/2014EP2780532A1 Hybrid drill bits having increased drilling efficiency
09/23/2014US8841005 Articles having improved resistance to thermal cracking
09/23/2014US8839889 Polycrystalline diamond compacts, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts and earth-boring tools
09/23/2014US8839888 Tracking shearing cutters on a fixed bladed drill bit with pointed cutting elements
09/23/2014US8839887 Composite sintered carbides
09/23/2014US8839886 Drill bit with recessed center
09/18/2014WO2014144082A1 Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
09/18/2014WO2014144050A1 Polycrystalline diamond compacts including diamond nanoparticles, cutting elements and earth-boring tools including such compacts, and methods of forming same
09/18/2014WO2014143700A1 Carbonate pcd and methods of making the same
09/18/2014WO2014143001A1 Directional solidification of polycrystalline diamond compact (pdc) drill bits
09/18/2014WO2014142784A1 Rotating drilling stabilizer
09/18/2014WO2014142783A1 Digital underreamer
09/18/2014WO2014142011A1 Digging tool
09/18/2014WO2014141173A1 Method of joining sintered parts of different sizes and shapes
09/18/2014WO2014102243A9 A support structure for a plurality of polycrystalline diamond material bodies during leaching
09/18/2014US20140262546 Polycrystalline diamond drill blanks with improved carbide interface geometries
09/18/2014US20140262545 Cutting structures for fixed cutter drill bit and other downhole cutting tools
09/18/2014US20140262544 Cutting structures for fixed cutter drill bit and other downhole cutting tools
09/18/2014US20140262543 Drill bit
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