| Patents for E21C 41 - Methods of underground or surface mining; Layouts therefor (2,789) |
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| 12/15/2010 | EP2260471A1 Three-dimensional implementation method of mine tunnel |
| 12/15/2010 | CN101915107A Method for arranging coal mine large-mining-height working surface equipment |
| 12/15/2010 | CN101915102A Comprehensive mechanization coal-mining method of heavy pitch course long well |
| 12/15/2010 | CN101915101A Method of mining coal from heavy pitch thick coal seam |
| 12/15/2010 | CN101915100A Loess-filling coal-mining method in a coal mine |
| 12/15/2010 | CN101915099A Bidirectional U-shaped coal-mining method of thick coal bed by gateway layout along stability layer |
| 12/15/2010 | CN101915098A Method for preventing and controlling rock burst through hydraulic cutting |
| 12/15/2010 | CN101328809B Non-bottom pillar deep hole falling-back type mining method |
| 12/09/2010 | US20100308641 Mining methods and systems using mobile conveyors |
| 12/08/2010 | EP1931554B1 Method of driving plurality of mine vehicles in mine, and transport system |
| 12/01/2010 | EP2061718B1 Transportation of sulphur from solid sulphur deposits, in blocks of large dimensions |
| 12/01/2010 | CN1804374B Method for preventing and controlling impact geopressure in longwall face gate of coal mine |
| 12/01/2010 | CN101509491B Special long shaft underwater halogen transmitting pump |
| 11/25/2010 | US20100295359 Collapsible Cushion |
| 11/24/2010 | CN101892842A Method for uncovering coal in vertical shaft |
| 11/11/2010 | WO2010127447A1 Frozen backfill mix formulations and process for use thereof in underground mining applications |
| 11/11/2010 | CA2761155A1 Frozen backfill mix formulations and process for use thereof in underground mining applications |
| 11/10/2010 | EP2247828A1 Method for controlling longwall mining operations, taking into account air and air conditioning resources |
| 11/10/2010 | EP2247826A1 Method for the controlled maintaining of a distance between the roof and the face in longwall mining operations |
| 11/10/2010 | EP2247824A1 Method for automatically creating a defined face opening in longwall coal mining operations |
| 11/10/2010 | CN101881169A Sublevel shrinkage caving stage open stope afterwards filling mining method |
| 11/10/2010 | CN101881168A Ultra-thin coal seam bottom climbing type comprehensive mechanical mining method |
| 11/10/2010 | CN101881167A Coal face stump mining method |
| 11/09/2010 | US7831345 Method of driving plurality of mine vehicles in mine, and transport system |
| 11/09/2010 | CA2619380C Methods for extracting oil from tar sand |
| 11/04/2010 | US20100278712 Method for Creating Diamond Dust via Detonation of Carbon Dioxide and Reducing Agent Combinations |
| 11/04/2010 | US20100276983 Integration of an in-situ recovery operation with a mining operation |
| 11/04/2010 | US20100276982 Method and apparatus for maintaining longwall face alignment |
| 11/03/2010 | CN101876254A Top coal discharge control process with steeply dipping coal seam working surface divided into different regions in inclining direction |
| 11/03/2010 | CN101876253A Working surface layout method for mining steeply dipping coal seam |
| 11/03/2010 | CN101876248A Method and apparatus for maintaining longwall face alignment |
| 10/28/2010 | US20100270015 In situ thermal processing of an oil shale formation |
| 10/27/2010 | EP2242903A2 Milling machine, in particular surface miner, and method for mining milled material of an open cast surface |
| 10/27/2010 | EP2242902A1 A method and an apparatus for mining a material in an underground environment |
| 10/27/2010 | EP2242900A1 Method for controlling longwall mining operations by identifying boundary layers |
| 10/27/2010 | CN101871347A Mining environment reconstruction layering and striping medium-length hole ore removal mining method |
| 10/27/2010 | CN101429867B Major cycle slanting extraction method for coal mining work surface |
| 10/21/2010 | US20100264720 Method for producing a lignite product |
| 10/20/2010 | CN101868596A Systems and methods for designing a haul road |
| 10/20/2010 | CN101864957A Great ore drawing simultaneous filling non-top column shrinkage mining method |
| 10/20/2010 | CN101864956A Sectional coal pillar-free exploitation method |
| 10/14/2010 | US20100259091 Method for controlling a cutting extraction machine |
| 10/13/2010 | CN201606079U 一种石材矿山洞采设备 One kind of stone mining cave mining equipment |
| 10/13/2010 | CN201606078U 齿链式切石设备 Tooth chain cut stone equipment |
| 10/13/2010 | CN101858217A House pillar changeable panel upward demix filling mining method |
| 10/13/2010 | CN101858216A Method for recovering stagnant coal pillars left by breast type coal mining method |
| 10/13/2010 | CN101858215A Road retained method for extrusion molding of waste rock |
| 10/13/2010 | CN101392651B Multifunction downhole bottom ripping machine |
| 10/06/2010 | CN1888389B Slitting type cutting coal-mining method capable of raising lump-coal yield and special large intercept coal-cutting drum |
| 10/06/2010 | CN101852081A Down-dip mining method of large inclination three- soft coal seam |
| 09/29/2010 | CN201593424U Cave-like soil-filled green pit on coal gangue heap |
| 09/23/2010 | US20100237682 Loading arm with wear resistant end, mining equipment using the arm, and method of use |
| 09/23/2010 | US20100237681 Mining Machine, In Particular Surface Miner, As Well As Method For The Removal And Installation Of A Transport Device In A Mining Machine |
| 09/22/2010 | CN101839134A Method for recovering irregular stagnant coal pillars left by room coal mining method |
| 09/15/2010 | CN101832138A Method for controlling rising type reverse-obliquity mining rock stratum of ultra-thick highly-oblique coal bed |
| 09/15/2010 | CN101832137A Pre-embedding method for coal seam roof strut |
| 09/14/2010 | CA2621991C Method and system for generating steam in the oil industry |
| 09/09/2010 | US20100225154 Method for Simultaneously Mining Vertically Disposed Beds |
| 09/08/2010 | CN101824997A Arrangement method for double-uphill air return of mining areas of mine |
| 09/08/2010 | CN101824986A Coal mining process of drilling, loading, conveying and anchoring integral machine |
| 09/08/2010 | CN101824985A Non-coal pillar mining method of protective coal pillars in coal mine |
| 09/08/2010 | CN101025086B Explosion coal-falling, coal-loading, coal-conveying and anchor-rod supporting mechanism integration operation method and apparatus |
| 09/01/2010 | EP2222820A1 Method for producing a lignite product |
| 09/01/2010 | CN101821205A Method of raising the ph of acidic bodies of water |
| 09/01/2010 | CN101818643A Stepped non-pillar continuous filling mining method for deep well super high large breaking ore body panel |
| 08/26/2010 | DE112008002721T5 Systeme und Verfahren zum Entwerfen einer Transportstrecke Systems and methods for designing a transport path |
| 08/25/2010 | CN201560763U Residual coal recovery unit of goaf |
| 08/25/2010 | CN101812988A Method for mining gently dipping to steep dipping thick and large ore bodies |
| 08/25/2010 | CN101270663B Bestriding type reversed loader |
| 08/19/2010 | WO2010091455A1 Method of blasting |
| 08/19/2010 | CA2752095A1 Method of blasting |
| 08/18/2010 | CN101806216A Sandy soil backfill type coal mining method |
| 08/18/2010 | CN101307692B Sharply inclined coal seam mining method |
| 08/18/2010 | CN101042051B Arrangement method for initial mining sublevel stoping drift with sublevel caving method |
| 08/12/2010 | US20100201180 Shoveling apparatus with multi-positional shovel |
| 08/11/2010 | CN101802645A Subsurface positioning system and method for monitoring movement underground |
| 08/11/2010 | CN101798927A Near infrared spectral recognizing coal gangue and gangue content control method |
| 08/11/2010 | CN101798925A Cutting head type shortwall coal-winning machine and comprehensive mechanized coal mining technology |
| 08/11/2010 | CN101372891B Strip filling integral backstopping coal mining method |
| 08/11/2010 | CN101245706B Three-dimensional simulated experiment bench for coal and mash gas co-extraction |
| 08/04/2010 | CN101793150A Method for mining ore body below landslide |
| 07/29/2010 | DE102007014662B4 Verfahren zum Betreiben eines Abbaugerätes, Strebausbau zur Durchführung des Verfahrens und Steuerung für einen solchen Strebausbau Method for operating a mining tool, face support for implementing the method and controller for such a longwall |
| 07/28/2010 | CN1932240B Full-seam cutting, retreating, separate moving and full-caving comprehensive mechanized coal mining method |
| 07/28/2010 | CN1920255B Single bracket for retreating type pillar type mining during chamber-and-pillar working |
| 07/28/2010 | CN101787889A Comprehensive mechanized coal mining method through cantilever support |
| 07/28/2010 | CN101787888A Method of mining coal |
| 07/22/2010 | WO2009079686A8 Method for producing a lignite product |
| 07/22/2010 | US20100183422 Arrangement for monitoring the location of a mining vehicle in a mine |
| 07/21/2010 | CN101781994A Method for mounting mine chute lining plate |
| 07/21/2010 | CN101781988A 'Bottom mining and top dropping' coal mining technology for soft coal bed with firmness coefficient below 1.3 |
| 07/14/2010 | CN201526321U Fully-mechanized top coal caving coal mining equipment for advanced support and full mechanization of lengthened front beam of three-soft coal bed |
| 07/14/2010 | CN101775986A Process for stoping low coal seam containing ferric sulfide concretions and hard parting bands and hydraulic support thereof for fully mechanized mining |
| 07/14/2010 | CN101775985A Deeply buried iron mineral resource underground mining and concentrating integration system |
| 07/08/2010 | US20100171360 Method for open pit bench mining |
| 07/07/2010 | CN101769152A Safe and rapid tunneling process for high-outburst mine coal roadway |
| 06/30/2010 | CN101761338A Gob-side entry retaining method of a solid filling coal mining half-section one-leg shed |
| 06/24/2010 | US20100156167 Ore extraction using combined blast and thermal fragmentation |
| 06/23/2010 | CN101749020A Forward coal mining by filling method |
| 06/23/2010 | CN101749019A Method for forming artificial ore pillar and mining method |
| 06/23/2010 | CN101749018A Coal mining method with direct coal pillar recovery |