| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 08/21/2008 | WO2008028131A3 Roller cone drill bits with improved fluid flow |
| 08/21/2008 | WO2007084623A3 Hole coring system |
| 08/21/2008 | US20080201115 Multiple inserts of different geometry in a single row of a bit |
| 08/21/2008 | US20080197691 Locking fixture for a degradation assembly |
| 08/20/2008 | EP1959091A1 Diameter expanding groove cutting device and expanding/contracting mechanism tool |
| 08/20/2008 | EP1957750A1 Methods for optimizing efficiency and durability of rotary drag bits and rotary drag bits designed for optimal efficiency and durability |
| 08/20/2008 | EP1957745A1 Hardfacing materials with highly conforming properties |
| 08/20/2008 | EP1957223A1 Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies |
| 08/20/2008 | CN201103345Y Anti-impact PDC drilling bit |
| 08/20/2008 | CN201103344Y PDC drilling bit for petroleum well drilling |
| 08/20/2008 | CN201103343Y Hard rock spherical tooth hob drilling bit of bored pile with ultra-large diameter |
| 08/20/2008 | CN201101990Y HAS high pressure gas-mist quick injector |
| 08/20/2008 | CN101248251A Rotary cutting pick and method of using a cutting pick for mining |
| 08/20/2008 | CN101245596A Multi-azimuth tridimensional stirring drill for mollisol or spongy soil reinforcing stirring pile |
| 08/20/2008 | CN100412310C Earth penetrating rotary drill bit with helical ports |
| 08/20/2008 | CN100412218C Diamond drill bit matrix powder |
| 08/20/2008 | CN100412179C Self-repairing multi-soap based composite bearing lubricating grease and preparation method thereof |
| 08/19/2008 | US7413037 Metal face seal for an earth-boring bit |
| 08/19/2008 | US7413020 Full bore lined wellbores |
| 08/14/2008 | WO2008096035A1 Method for manufacturing a ring bit for a drilling device |
| 08/14/2008 | WO2008079211B1 Computer aided design of rock drilling bit |
| 08/14/2008 | WO2008073873A3 Magnetic earth bit seal |
| 08/14/2008 | WO2008073309A3 Rotary drag bits having a pilot cutter configuration and method to pre-fracture subterranean formations therewith |
| 08/14/2008 | WO2008019293A3 Seal assembly for drill bit |
| 08/14/2008 | US20080190670 Rotary drag bit with increased back rake angle gauge cutter |
| 08/14/2008 | DE102007018791B3 Making strip connecting cutting segments, used to manufacture core-drilling bit, lays metal strip in sintering mold, adds green molded cutters and completes sintering and bonding in single firing |
| 08/14/2008 | DE102007006943A1 Schneidelement für einen Gesteinsbohrer und ein Verfahren zur Herstellung eines Schneidelements für einen Gesteinsbohrer A cutting element for a rock drill and a method of making a cutting element for rock drills |
| 08/14/2008 | CA2675670A1 Rotary drill bit steerable system and method |
| 08/13/2008 | EP1747344B1 Enlarging and stabilising tool for a borehole and method for the use thereof |
| 08/12/2008 | US7410015 Expandable drill bit |
| 08/07/2008 | WO2008095005A1 Rotary drill bits with protected cutting elements and methods |
| 08/07/2008 | WO2008093482A1 Rotary excavating tool, road surface excavating device, and road surface excavating method |
| 08/07/2008 | WO2008092994A1 Drilling tool |
| 08/07/2008 | WO2008036709A3 Apparatus and method for packaging rotary drill bits |
| 08/07/2008 | WO2007115264A3 Tapered reamer bit |
| 08/07/2008 | US20080185189 Manufacture of thermally stable cutting elements |
| 08/07/2008 | US20080185188 In-situ composite formation of damage tolerant coatings utilizing laser |
| 08/07/2008 | CA2675842A1 Drilling tool |
| 08/07/2008 | CA2675572A1 Rotary drill bits with protected cutting elements and methods |
| 08/06/2008 | EP1951987A1 Earth boring bit with tilted hydrodynamic thrust bearing |
| 08/06/2008 | CN201095957Y Stone drill |
| 08/06/2008 | CN100408807C Assembly for fixing drill on a driven mechanism |
| 08/06/2008 | CA2619547A1 Polycrystalline diamond constructions having improved thermal stability |
| 08/05/2008 | US7407525 Cutting element rock bit used to drill wellbores composed of wear resistant coarse transition metal carbide, boride or nitride grains in a binder matrix (cobalt); fracture toughness of at least 20 ksi (in)0.5 and a wear number of at least 1.8. |
| 08/05/2008 | US7407020 Rotating systems associated with drill pipe |
| 08/05/2008 | US7407012 Thermally stable diamond cutting elements in roller cone drill bits |
| 08/05/2008 | CA2348748C Hydro-lifter rock bit with pdc inserts |
| 07/31/2008 | WO2008092130A1 Rotary drag bit and methods therefor |
| 07/31/2008 | WO2008092113A2 Rotary drag bit and methods therefor |
| 07/31/2008 | WO2008091654A2 Rotary drag bit |
| 07/31/2008 | WO2008073308A3 Displacement members and methods of using such displacement members to form bit bodies of earth boring rotary drills bits |
| 07/31/2008 | WO2008069863A3 Earth boring bit |
| 07/31/2008 | US20080179109 Cutting elements formed from ultra hard materials having an enhanced construction |
| 07/31/2008 | US20080179108 Rotary drag bit and methods therefor |
| 07/31/2008 | US20080179107 Rotary drag bit and methods therefor |
| 07/31/2008 | US20080179106 Rotary drag bit |
| 07/31/2008 | US20080179105 Hole coring system with lever arm |
| 07/31/2008 | US20080179104 Nano-reinforced wc-co for improved properties |
| 07/31/2008 | US20080179103 Magnetic earth bit seal |
| 07/31/2008 | US20080179102 Drill bits having optimized cutting element counts for reduced tracking and/or increased drilling performance |
| 07/31/2008 | DE112006002135T5 Verfahren und Systeme zum Konstruieren und/oder Auswählen von Bohrausrüstung basierend auf Bohrlochbohrsimulationen Methods and systems for designing and / or selecting of drilling equipment based on Bohrlochbohrsimulationen |
| 07/31/2008 | CA2675269A1 Rotary drag bit and methods therefor |
| 07/31/2008 | CA2674393A1 Casting of tungsten carbide matrix bit heads and heating bit head portions with microwave radiation |
| 07/29/2008 | US7404857 Superabrasive particle synthesis with controlled placement of crystalline seeds |
| 07/29/2008 | CA2407506C Expandable apparatus for drift and reaming a borehole |
| 07/29/2008 | CA2271401C Drilling with casing |
| 07/29/2008 | CA2258448C Hardfacing compositions and hardfacing coatings formed by pulsed plasma-transferred arc |
| 07/24/2008 | WO2008086693A1 Piling machine with high-pressure jet spiral bit and its piling method |
| 07/24/2008 | WO2008070038B1 Expandable reamers for earth-boring applications and methods of using the same |
| 07/24/2008 | WO2008066889B1 Detritus flow management features for drag bit cutters and bits so equipped |
| 07/24/2008 | WO2008060561B1 Drill bit nozzle assembly, insert assembly including same and method of manufacturing or retrofitting a steel body bit for use with the insert assembly |
| 07/24/2008 | WO2008042258A3 Bit assembly for down-hole drills |
| 07/24/2008 | US20080173482 Drill Bit |
| 07/23/2008 | EP1945428A2 Hardfacing composition and article having hardfacing deposit |
| 07/23/2008 | EP1664476B1 Rotary roller reamer |
| 07/23/2008 | CN201090143Y Assembled drilling bit with rolling gear without adopting drill core |
| 07/23/2008 | CN201090142Y Long helix oscillation drilling bit |
| 07/23/2008 | CN201090141Y Dynamic current-limiting apparatus along drilling reaming |
| 07/23/2008 | CN201090140Y Reaming blade for bad ground and long bare hole segment |
| 07/23/2008 | CN201090139Y Press control drill scalpel integration drilling bit |
| 07/23/2008 | CN101225736A Hydraulic double-acting drilling reamer |
| 07/22/2008 | US7401668 Single cone rock bit having inserts adapted to maintain hole gage during drilling |
| 07/22/2008 | US7401667 Multi-purpose drilling tool |
| 07/22/2008 | US7401666 Reaming and stabilization tool and method for its use in a borehole |
| 07/22/2008 | CA2467129C A boring head and a roller cutter and a saddle for a boring head for rotary drilling |
| 07/22/2008 | CA2378534C Rockbit with attachable device for improved cone cleaning |
| 07/17/2008 | WO2008086280A1 Intermetallic bonded diamond (ibd) cutting elements |
| 07/17/2008 | WO2008085622A1 Apparatus and method for vibrating a drill bit |
| 07/17/2008 | WO2008085381A2 Methods and systems for compaction of powders in forming earth-boring tools |
| 07/17/2008 | WO2008083448A1 Device or actuating a bottom tool |
| 07/17/2008 | CA2674828A1 Intermetallic bonded diamond (ibd) cutting elements |
| 07/17/2008 | CA2674505A1 Drill bits and other downhole tools with hardfacing having tungsten carbide pellets and other hard materials |
| 07/17/2008 | CA2674469A1 Intermetallic aluminide polycrystalline diamond compact (pdc) cutting elements |
| 07/17/2008 | CA2674030A1 Downhole tool |
| 07/17/2008 | CA2672704A1 Methods and systems for compaction of powders in forming earth-boring tools |
| 07/16/2008 | EP1944461A2 Reinforcing overlay for matrix bit bodies |
| 07/16/2008 | EP1944108A2 Drill head for drill and drill |
| 07/16/2008 | EP1944107A2 Drill head for drill and drill |
| 07/16/2008 | EP1943408A1 Cutting element apparatuses, drill bits including same, methods of cutting, and methods of rotating a cutting element |
| 07/16/2008 | CN201087696Y Drilling and expanding one-shot forming device for multi-joint drilling and expanding filling pile |