| Patents for E21C 41 - Methods of underground or surface mining; Layouts therefor (2,789) |
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| 01/30/2013 | CN102128033B Progressive caving mining method |
| 01/30/2013 | CN102121384B Method for simulating coal seam mining by using rubber hydraulic bags |
| 01/30/2013 | CN101928740B MMP14 double-target efficient binding peptide, method for obtaining polypeptide structure sequence and application of target compound |
| 01/24/2013 | WO2013010206A1 Coal caving cycle |
| 01/23/2013 | CN202690061U Coal seam roof cutting device |
| 01/23/2013 | CN102889084A Continuous mining technique for thin coal layer of opencast coal mine |
| 01/23/2013 | CN102889083A Method for confirming coal mining sunken surface soil peeling space time based on geographic information system (GIS) grid unit |
| 01/23/2013 | CN102278114B Method for mining mass caving ore in three-dimensional sub region |
| 01/17/2013 | WO2013006896A1 Sorting in a mining operation |
| 01/17/2013 | CA2877897A1 Method for the in situ recovery of heavy oil from a subterranean deposit |
| 01/17/2013 | CA2841421A1 Sorting in a mining operation |
| 01/16/2013 | CN102877848A Method for performing coal mining and gangue cementation stripe filling simultaneously |
| 01/16/2013 | CN102877847A Method for tunneling open-off cut expansion opening section of fully mechanized coal mining face |
| 01/16/2013 | CN102877846A Unit method based mined and reclaimed topsoil stripping time determining method |
| 01/16/2013 | CN101868596B Systems and methods for designing a haul road |
| 01/13/2013 | CA2782308A1 Sagdox geometry |
| 01/10/2013 | CA2841131A1 Spectroscopic analysis of oil sands ore face for real time ore blend management |
| 01/09/2013 | CN102865081A Water-preserved mining method |
| 01/09/2013 | CN102865080A Induced fracture engineering arrangement and non-blasting mining process for high-geostress hard rock |
| 01/09/2013 | CN102865079A Underground coal mining method based on ecological environment preservation |
| 01/09/2013 | CN102865078A Method of determining water-preserved mining geological conditions under loose water bearing layer |
| 01/09/2013 | CN102865077A Simulation system of water-preserved mining |
| 01/08/2013 | CA2661725C Method and system for accessing subterranean deposits from the surface |
| 01/08/2013 | CA2501844C System and method(s) of blended mine planning, design and processing |
| 01/03/2013 | CA2840545A1 Extracting mined ore, minerals or other materials using sensor-based sorting |
| 01/02/2013 | EP2539542A1 Underground mining |
| 01/02/2013 | CN102852524A Method for utilizing hydraulic support to improve bauxite recovery rate |
| 01/02/2013 | CN102852523A Arrangement method of inversed S-shaped cut-eye on steeply inclined comprehensive caving working face |
| 01/02/2013 | CN102061921B Down-dip mining method of shaped hydraulic bracket on long-wall working surface in direction of large dip angle coal bed |
| 01/01/2013 | US8342267 Mining machine with improved rib reach capability and method of use thereof |
| 12/27/2012 | WO2012174604A1 Dredging system |
| 12/27/2012 | CA2840118A1 Mining method for gassy and low permeability coal seams |
| 12/26/2012 | CN102844522A Underground mining |
| 12/20/2012 | US20120319451 Launch vehicle for a mining system, a mining system and a method for mining |
| 12/19/2012 | CN102828753A Double-beveling arranging method for long-wall comprehensive releasing operation surface of heavy-pitch coal seam tendency |
| 12/19/2012 | CN102086765B High-sublevel multi-layer mining method of ultrathin copper ore body |
| 12/19/2012 | CN102071940B Construction method for mine shaft through multilayer goaf |
| 12/19/2012 | CN102003185B Sublevel stripe tail salt stoping dry-type filling-mining method |
| 12/13/2012 | DE102011077062A1 Verfahren zum Abbau von Schiefergas Process for the degradation of shale gas |
| 12/12/2012 | CN102817614A Stope structure arrangement mode suitable for underground mine high productivity and low cost subsequent filling |
| 12/12/2012 | CN102817366A Prevention and treatment method for full-mechanized caving mining collapse trap area water disaster for shallow-buried ultra-thick coal seam |
| 12/06/2012 | US20120306257 Determination of rock types by spectral scanning |
| 12/05/2012 | CN202578698U Novel thin seam coal mine downhole mining complete equipment |
| 12/05/2012 | CN102808644A Coal and gas co-mining method based on mining fissure elliptic paraboloid zone |
| 12/05/2012 | CN102808626A Safe and green mining method of mineral resources |
| 12/05/2012 | CN102808625A Method for safely and environmentally mining mineral resource and developing industrial tourism |
| 12/05/2012 | CN102808624A System and method for simultaneous mining of coal gangue |
| 12/05/2012 | CN102808623A Coal mine underground multipurpose vehicle |
| 12/05/2012 | CN102808622A Method for recycling ore pillars by middle-deep hole and deep hole united blasting technique |
| 12/05/2012 | CN102808621A Method for blasting heavy-inclined thick ore bodies |
| 12/05/2012 | CN102807388A Safe and green mining method for simultaneously reinforcing and mining mineral resource |
| 11/28/2012 | CN102797465A Underground ultra-thin virtual protection layer hydraulic coal mining method |
| 11/28/2012 | CN102797464A Mining method for deterioration coal under intrusion of igneous rock |
| 11/22/2012 | WO2012155531A1 Technology and equipment for separating coal and gangue and refilling gangue. |
| 11/21/2012 | CN102787843A Dirt band-containing coal seam working surface mining process |
| 11/21/2012 | CN101967975B Fully-mechanized caving mining process technology with large mining height in super-high seam (14-20m) |
| 11/15/2012 | WO2012151624A1 Drive system |
| 11/14/2012 | CN102777182A Rapid end extracting method of large mining height working face |
| 11/14/2012 | CN102777181A Method for recovering top coals in advance on full-mechanized caving mining face |
| 11/14/2012 | CN102777180A Method for actively and regionally preventing and controlling rock burst in coal mines |
| 11/14/2012 | CN102777179A Method for controlling mine power capacity source by using region power planning |
| 11/14/2012 | CN102777151A Novel process for hydraulic mining and fluid carrying of deep coal |
| 11/14/2012 | CN102155225B Filling and mining method of coal gases |
| 11/14/2012 | CN102102519B Production automation method for fully mechanized mining working face |
| 11/12/2012 | CA2740158A1 Harvesting by-passed resource |
| 11/07/2012 | CN202520369U Gas outburst tunnel crosscut coal uncovering construction system |
| 11/07/2012 | CN102767372A Protective layer selecting method of coal and gas outburst |
| 11/07/2012 | CN102767371A Method for realizing water-preserved mining by utilizing curtain grouting technology |
| 11/07/2012 | CN101975064B Mechanical continuous mining method for gently inclined thin ore body |
| 11/07/2012 | CN101922292B Coal mine gob-side entry retaining roadside segment bearing unequal strength support principle and application |
| 11/07/2012 | CN101892842B Method for uncovering coal in vertical shaft |
| 11/07/2012 | CN101775986B Process for mining thin coal seam containing ferric sulfide nodule and hard dirt band and fully mechanized mining hydraulic support thereof |
| 10/31/2012 | CN102758630A Method for extracting part of fault protection coal pillars |
| 10/31/2012 | CN102758629A Method for enabling fully mechanized face to directly pass through collapse pillar by drilling weakened rock |
| 10/31/2012 | CN102031971B Method for determining structure and thickness of open-pit-to-underground covering layer |
| 10/31/2012 | CN101967973B Open stope-caving combined mining method |
| 10/30/2012 | US8297350 Method and system for accessing subterranean deposits from the surface |
| 10/24/2012 | CN102748028A Building block type constructing method of standardized prefabricated module of bottom structure of underground mining |
| 10/24/2012 | CN102748027A Reverse-procedure installation technology for fully mechanized mining face |
| 10/24/2012 | CN102748026A Short-wall-box-type coal mining method |
| 10/24/2012 | CN102748025A Cutting coal mining method and device thereof |
| 10/24/2012 | CN102061922B Method for carrying out comprehensive mechanical coal mining and continuous propulsion mining on split and merged coal beds |
| 10/24/2012 | CN101737050B Deep hole arranging method in mining |
| 10/17/2012 | CN102733851A Control method for water-containing collapse columns in mining affected areas of combined reconstructed mines |
| 10/16/2012 | US8287050 Method of increasing reservoir permeability |
| 10/10/2012 | CN102720500A Mechanized underground mining method for sharply inclined thin ore body |
| 10/10/2012 | CN102720499A Fully-mechanized top-coal caving, filling and mining method |
| 10/10/2012 | CN102720498A Gob-side entry retaining mining process for coal face |
| 10/10/2012 | CN102720497A Method for chemically softening rock to allow fully mechanized coal face to pass collapsed column |
| 10/10/2012 | CN102011590B Mine down-hole double-stope bottom structure |
| 10/10/2012 | CN102011589B Stope bottom structure suitable for underground two-step mining and production process thereof |
| 10/10/2012 | CN101956556B Roof and bottom pillar-free stage upward continuous filling and mining method |
| 10/04/2012 | US20120253584 Imaging-based interface sensor and control device for mining machines |
| 10/03/2012 | CN202467843U Comprehensive coordinated mode of fully mechanized mining face on bow pseudo-oblique running direction long wall of steeply inclined coal seam |
| 10/03/2012 | CN102704936A Caving control method for fully mechanized mining face tip mining road way top plate |
| 10/03/2012 | CN102704935A Extra-long working surface fully mechanized coal mining process |
| 10/03/2012 | CN102704934A High-yield and low-cost subsequent filling mining method for underground mine |
| 10/03/2012 | CN102704933A Isolated-section grouting filling coal-mining method for mining overburden rock |
| 10/03/2012 | CN102094647B Safe and efficient fully-mechanized mining method for thin coal seam under two hard conditions |
| 10/03/2012 | CN101858215B Road retained method for extrusion molding of waste rock |