| Patents for E21C 41 - Methods of underground or surface mining; Layouts therefor (2,789) |
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| 06/14/2011 | CA2539268C Thermal rock fragmentation application in narrow vein extraction |
| 06/08/2011 | CN102086765A High-sublevel multi-layer mining method of ultrathin copper ore body |
| 06/07/2011 | US7957941 System and method(s) of mine planning, design and processing |
| 06/01/2011 | CN102080545A High-risk jamb open-air deep hole cooperative recovery method |
| 06/01/2011 | CN102080541A Bidirectional cutting method for continuous miner |
| 06/01/2011 | CN102080519A Method for extracting coal bed gas by negative pressure on ground through gas-coal simultaneous extraction |
| 06/01/2011 | CN101519966B Method for comprehensively treating ecological environment of coal gangue hill |
| 06/01/2011 | CN101457645B Thick coal seam stepwise full-seam coal mining method |
| 05/25/2011 | CN102071941A Fully mechanized mining gob-side entry retaining-based concrete block staggered joint longitudinal stacking wall forming method |
| 05/25/2011 | CN102071940A Construction method for mine shaft through multilayer goaf |
| 05/25/2011 | CN101666230B Coal mining method of lengthened front-beam fully-mechanized mining and fully-mechanized top coal carving of three-soft coal seam and equipment |
| 05/25/2011 | CN101634842B Control system for identifying coal and gangue and automatic coal discharge |
| 05/19/2011 | US20110115277 Method for steering a mining machine cutter |
| 05/18/2011 | CN102061922A Method for carrying out comprehensive mechanical coal mining and continuous propulsion mining on split and merged coal beds |
| 05/18/2011 | CN102061921A Down-dip mining method of shaped hydraulic bracket on long-wall working surface in direction of large dip angle coal bed |
| 05/18/2011 | CN102061920A Exploring method of water liberation working surface of water-enriched mine area |
| 05/18/2011 | CN102061919A Co-mining tunneling method of seam roadway gas |
| 05/18/2011 | CN102061918A Coal mining method for co-mining gas in mine |
| 05/18/2011 | CN101644158B Heap storage method for preventing spontaneous combustion of coal gangue hill |
| 05/12/2011 | WO2011054035A1 Improved slope of an open cut mine |
| 05/12/2011 | CA2779674A1 Improved slope of an open cut mine |
| 05/11/2011 | CN101634228B Self-falling self-producing coal-mining method suitable for coal bed at inclined angle over 45 degrees |
| 05/11/2011 | CN101260805B Fully-mechanized mining method for safely passing bottom board laneway rock pillar |
| 05/10/2011 | CA2623521C Method of driving plurality of mine vehicles in mine, and transport system |
| 05/05/2011 | WO2010150010A3 Apparatus and methods for forming and using subterranean salt cavern |
| 05/04/2011 | CN102042018A Method and system for reversely uncovering coal in crosscut |
| 05/04/2011 | CN101403303B Tunnel layout method suitable for residual mining |
| 04/27/2011 | CN102031972A L-shaped mining method under open-underground mining |
| 04/27/2011 | CN102031971A Method for determining structure and thickness of open-pit-to-underground covering layer |
| 04/26/2011 | US7931341 Narrow bench mining system |
| 04/21/2011 | WO2011046528A1 Method for coking coal |
| 04/20/2011 | CN102022116A Method and system for continuous mining device |
| 04/20/2011 | CN101516772B Transportation of sulphur from solid sulphur deposits, in blocks of large dimensions |
| 04/14/2011 | WO2010110675A3 Collecting device and system for handling an uncontrolled blow-out |
| 04/13/2011 | CN102011590A Mine down-hole double-stope bottom structure |
| 04/13/2011 | CN102011589A Stope bottom structure suitable for underground two-step mining and production process thereof |
| 04/13/2011 | CN102011588A House pillar type cutting and filling method of medium coal seam for controlling movement deformation of overlying rock |
| 04/13/2011 | CN102011587A Method for mining coal on irregular fully-mechanized working surface |
| 04/13/2011 | CN101382074B Simple ore drawing method of gently inclined ore |
| 04/12/2011 | US7925474 System and methods(s) of blended mine planning, design and processing |
| 04/07/2011 | WO2011038449A1 A method of underground rock blasting |
| 04/07/2011 | US20110080034 Milling machine, in particular surface miner, and method for mining milled material of an open cast surface |
| 04/07/2011 | CA2772412A1 A method of underground rock blasting |
| 04/06/2011 | CN102003185A Sublevel stripe tail salt stoping dry-type filling-mining method |
| 04/06/2011 | CN101302934B Coal mining method with three steps |
| 03/30/2011 | CN101586460B Coal mining solid filling method |
| 03/23/2011 | CN101988385A Ventilation method for karst water-rich mine |
| 03/17/2011 | US20110062768 Mining Machine and Method of Mining |
| 03/16/2011 | CN201763345U Gas sample collecting and analyzing device in underground gob area of coal mine |
| 03/10/2011 | WO2010142001A3 A mine scheduling system |
| 03/03/2011 | US20110049965 Apparatus and method for mining coal |
| 03/03/2011 | US20110049964 Method for Controlling Longwall Mining Operations |
| 02/23/2011 | CN101981273A A method and an apparatus for mining a material in an underground environment |
| 02/23/2011 | CN101979832A Underground separation method and device for gangue |
| 02/22/2011 | US7891233 Blast movement monitor |
| 02/16/2011 | CN101975064A Mechanical continuous mining method for gently inclined thin ore body |
| 02/16/2011 | CN101302931B Method for extracting rim angle coal and re-extracting after warehouse coal extracting |
| 02/09/2011 | CN201738926U Fully mechanized supporting equipment for thin seam |
| 02/09/2011 | CN101970799A Method for controlling longwall mining operations, taking into account air and air conditioning resources |
| 02/09/2011 | CN101967976A Open pit mined-out area through hole plug and through hole plugging method thereof |
| 02/09/2011 | CN101967975A Fully-mechanized caving mining process technology with large mining height in super-high seam (14-20m) |
| 02/09/2011 | CN101967974A Method for crossed operation of vertical shaft backward-excavation deepening and exploration and exploitation projects |
| 02/09/2011 | CN101967973A Open stope-caving combined mining method |
| 02/09/2011 | CN101353963B Vacant field coal excavating method of high-dipping coal bed slotted hole blasting unmanned operation working face |
| 02/02/2011 | CN201730618U Mining groove cutting equipment |
| 01/27/2011 | US20110018332 Method and Apparatus for Mining a Material in an Underground Environment |
| 01/26/2011 | CN101956556A Roof and bottom pillar-free stage upward continuous filling and mining method |
| 01/26/2011 | CN101956555A Mining method with different stope structure parameter transition and application thereof |
| 01/24/2011 | CA2673865A1 Screening disk, roller, and roller screen for screening an ore feed |
| 01/20/2011 | WO2011008184A1 Method for developing mineral deposits |
| 01/19/2011 | CN101952548A Method for the controlled maintaining of a distance between the roof and the face in longwall mining operations |
| 01/19/2011 | CN101952547A Method for automatically creating a defined face opening in longwall coal mining operations |
| 01/19/2011 | CN101519965B Method and device for exploiting stone |
| 01/13/2011 | US20110010149 Blasting Method |
| 01/13/2011 | US20110006585 Mining method |
| 01/13/2011 | US20110006584 Method for Automatically Producing a Defined Face Opening in Plow Operations in Coal Mining |
| 01/12/2011 | CN101942999A Coal mining method for high-dipping low seam |
| 01/06/2011 | WO2011000038A1 Underground mining |
| 01/06/2011 | US20110001348 Method for Controlling Longwall Operations Using Boundary Layer Recognition |
| 01/06/2011 | US20110000992 Overburden removal system with triple track mobile sizer |
| 01/06/2011 | CA2765714A1 Underground mining |
| 01/05/2011 | CN101939507A Milling machine, in particular surface miner, and method for mining milled material of an open cast surface |
| 01/05/2011 | CN101936166A In-situ leaching, drainage and liquid collection process with diversion holes |
| 01/05/2011 | CN101936165A Well spacing method for karst carbonate reservoir |
| 01/05/2011 | CN101936164A Very soft thick coal seam forepoling hold top coal caving mining method and hydraulic support structure |
| 01/05/2011 | CN101936163A Method for recovering large mining height fully-mechanized face end part ground coal |
| 01/05/2011 | CN101936162A Method for preventing rock burst of bottom plate of layered tunnel in tectonic stress region of coal mine |
| 01/05/2011 | CN101261104B Crack rock laneway molding control method |
| 01/04/2011 | US7863341 Preparation of syngas |
| 12/30/2010 | US20100327650 Method for Automatically Creating a Defined Face Opening in Longwall Mining Operations |
| 12/29/2010 | CN101928740A MMP14 double-target efficient binding peptide, method for obtaining polypeptide structure sequence and application of target compound |
| 12/28/2010 | US7857396 Method and system for solution mining |
| 12/23/2010 | WO2010144953A1 A method of characterising a resource |
| 12/23/2010 | US20100320827 Method for the Controlled Maintaining of a Distance Between the Top Canopy and the Coal Face in Longwall Mining Operations |
| 12/23/2010 | CA2765246A1 A method of characterising a resource |
| 12/22/2010 | CN101922292A Coal mine gob-side entry retaining roadside segment bearing unequal strength support principle and application |
| 12/22/2010 | CN101029574B Long standpipe gas extraction in worked-out section |
| 12/16/2010 | WO2010142002A1 A mine operation monitoring system |
| 12/16/2010 | WO2010142001A2 A mine scheduling system |
| 12/16/2010 | CA2765275A1 A mine operation monitoring system |