| Patents for E21C 41 - Methods of underground or surface mining; Layouts therefor (2,789) |
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| 05/09/2008 | CA2610124A1 Mobile oil sands mining system |
| 05/07/2008 | CN101175896A Mining optimisation |
| 05/06/2008 | US7367269 Blast movement monitor and method for determining the movement of a blast movement monitor and associated rock as a result of blasting operations |
| 05/06/2008 | CA2364953C Electrochemical processing |
| 04/30/2008 | CN101169039A Fully mechanized top coal roof multiple segment control exploration method for deeply inclined coal seam |
| 04/29/2008 | CA2457902C Method and system for extraction of resources from a subterranean well bore |
| 04/24/2008 | WO2008048140A1 Method for joining inclined haulage berms on a section adjacent to a safety berm |
| 04/24/2008 | US20080093911 Method and Apparatus for Open Pit Bench Mining |
| 04/24/2008 | CA2666506A1 Method of collecting hydrocarbons using a barrier tunnel |
| 04/23/2008 | CN201050373Y Electric scraper discharging tunnel |
| 04/16/2008 | CN101161991A Low-oxygen safe mining process |
| 04/09/2008 | CN101158287A Honey comb structure consolidated fill mining method |
| 04/09/2008 | CN101158285A Underground mining methods of copper mine |
| 04/09/2008 | CN101158267A Method and system for accessing subterranean deposits from the surface |
| 04/08/2008 | CA2453697C At the mine site oil sands processing |
| 04/01/2008 | US7350874 Method and device for extracting extraction products in underground mining |
| 03/20/2008 | WO2008031524A1 Transportation of sulphur from solid sulphur deposits, in blocks of large dimensions |
| 03/20/2008 | DE102006042129A1 Deeply lying natural resources decomposition method for mining industry, involves indirectly misplacing contour mine opening depending on decomposition of strip and recultivating mining compound to drive decomposition opening between strips |
| 03/20/2008 | CA2662880A1 Transportation of sulphur from solid sulphur deposits, in blocks of large dimensions |
| 03/19/2008 | CN101144389A Gridding type layer-through drilling pore group permeability-increasing gas pumping method |
| 03/19/2008 | CN101144381A Very thin seam coal winning machine with particular arranged motor |
| 03/13/2008 | US20080060806 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060800 Method and system for accessing subterranean deposits from the surface |
| 03/12/2008 | CN101139930A High-route to lower route method for lowering top board beforehand |
| 03/12/2008 | CN101139929A Two-station type guiding angle calibrating method for mining field route center |
| 03/12/2008 | CN101139928A Land bridge method for recovery of pressed coal under highway |
| 02/27/2008 | CN201027540Y Coal-charging, coal-carrying and anchor stock supporting mechanically integrated device |
| 02/26/2008 | CA2340506C Method and system for mining hydrocarbon-containing materials |
| 02/21/2008 | WO2007100733A3 Method and system for extraction of hydrocarbons from oil sands |
| 02/20/2008 | CN101126316A Long-wall integrated-extraction reclaiming room-type coal column mining method |
| 02/14/2008 | US20080036268 Coal reclamation apparatus and method |
| 02/06/2008 | CN101117888A Method for reinforcing underground mine main chute |
| 02/05/2008 | CA2498862C Apparatus and process for mining of minerals |
| 01/24/2008 | DE102006023631A1 Widening cuttings in rocky terrain, to make way for additional railway tracks or motorway lanes, employs systematic operation keeping existing way clear |
| 01/23/2008 | CN101109283A quantitative decision method for feasibility of mining above hollow |
| 01/23/2008 | CN100363591C Unmanned down-hole coal excavating method for vertical shaft group |
| 01/16/2008 | CN101105129A Mining environment reconstructed continuous mining afterwards filling mining method |
| 01/15/2008 | US7318627 Recovery head with track seal |
| 12/27/2007 | WO2007148251A1 A mining method and system for use therein |
| 12/26/2007 | EP1619352A9 Method and system for accessing subterranean deposits from the surface |
| 12/26/2007 | CN101092875A Impulse type coal winning machine, and stone catcher |
| 12/20/2007 | DE102006028082A1 Soil e.g. grown or poured soil, buffering method, involves allowing charge suspension to take place in relevant soil area selectively in distance of specific meters from support, transport and dosing unit |
| 12/19/2007 | CN200993020Y Dual crawler suspension floating tracked harvester |
| 12/05/2007 | CN100353029C Panel unloading and loading hig slicing filling mining method |
| 12/04/2007 | CA2493354C Method and system for extraction of resources from a subterranean well bore |
| 12/04/2007 | CA2381103C Sulfur storage method and system |
| 11/22/2007 | WO2006128165A3 Method for underground recovery of hydrocarbons |
| 11/22/2007 | DE102006021330A1 Verfahren und Vorrichtung zur optimalen Nutzung von Kohlenstoff-Ressourcen wie Ölfelder, Ölschiefer, Ölsande, Kohle und CO2 durch Einsatz von SC(super-critical)-GeoSteam Method and apparatus for optimal utilization of carbon resources such as oil fields, oil shale, oil sands, coal and CO2 through the use of SC (super-critical) -GeoSteam |
| 11/21/2007 | CN101073886A Non-power driven mine robot |
| 11/14/2007 | CN101070759A Thin-base-rock shallow coal-layer water-retaining production suitable-condition classification method |
| 11/13/2007 | CA2263243C Hydraulic fracturing of ore bodies |
| 11/06/2007 | CA2343912C Mining machine and mining method |
| 10/31/2007 | CN101063408A Method for rock drifting |
| 10/25/2007 | DE19882613B4 Kontrollsystem für Abraumaustrag Control system for Abraumaustrag |
| 10/24/2007 | CN100344857C Method of simplified advance wall type coal mining, gas collection and drainage |
| 10/11/2007 | US20070236075 Apparatus for assembling a liner |
| 10/10/2007 | CN101050705A Underground high section mining method for iron mine |
| 10/04/2007 | US20070228804 Remote mine seal spray nozzle assembly, system and methods of use |
| 09/26/2007 | CN101042051A Arrangement method for initial mining sublevel stoping drift with sublevel caving method |
| 09/20/2007 | US20070216216 Mining Apparatus With Precision Navigation System |
| 09/12/2007 | CN101033689A Underground no pillar recovery method of coal mine |
| 09/07/2007 | CA2643214A1 Method and system for extraction of hydrocarbons from oil sands |
| 09/05/2007 | CN101029577A Method for extracting released-gas of protected coal-bedding under unstabilized thin coal bedding set condition |
| 09/05/2007 | CN101029574A Long standpipe gas extraction in worked-out section |
| 08/30/2007 | US20070200420 Underground mine rescue pod |
| 08/29/2007 | CN101025086A Explosion coal-falling, coal-loading, coal-conveying and anchor-rod supporting mechanism integration operation method and apparatus |
| 08/29/2007 | CN101025085A Method for coal mine downhole reproduction and back production |
| 08/23/2007 | WO2007094688A1 Transportation system for a sub-surface activity area |
| 08/23/2007 | CA2642588A1 Transportation system for a sub-surface activity area |
| 08/22/2007 | CN101021154A Thin basic rock shallow buried coal seam longwall face water retaining mining method |
| 08/22/2007 | CN101021153A Waste filling thin coal seam tunnelling method |
| 08/16/2007 | DE102006001907B3 Combined open cast mining excavator and conveyer belt crawler has central portal linked on both sides by telescopic arms to cantilevered bridge |
| 08/09/2007 | US20070185750 Method, apparatus and computer program for scheduling the extraction of a resource and for determining the net present value of an extraction schedule |
| 07/26/2007 | US20070170771 Underground Mine and Method of Mining |
| 07/26/2007 | US20070169542 Blast movement monitor |
| 07/25/2007 | CN101006249A Method, apparatus and computer program for scheduling the extraction of a resource and for determining the net present value of an extraction schedule |
| 07/24/2007 | CA2483023C Method and system for accessing subterranean deposits from the surface |
| 07/19/2007 | DE102006001920A1 Improvement of water quality of acid water of open mining lakes by introducing calcium or calcium and magnesium containing feed materials into the acid waters and/or water and introducing caustic soda solution into the water |
| 07/18/2007 | CN100999994A Mining method of potassium salt magnesium vanadium salt mine |
| 07/12/2007 | WO2007076571A1 Waste disposal during pit mining |
| 07/12/2007 | CA2634961A1 Waste disposal during pit mining |
| 07/05/2007 | US20070151471 Method for determining the movement of a blast movement monitor and associated rock as a result of blasting operations |
| 07/05/2007 | US20070151345 Blast Movement Monitor |
| 07/04/2007 | CN1991129A Method and device for flexible-sealed back expansion grubbing type safety mining after stick-plugging |
| 06/21/2007 | DE10227951B4 Verfahren zur Steuerung der Wasserqualität an offenen Gewässern Method for controlling water quality in open waters |
| 06/21/2007 | DE102005059394A1 Transport of arctic ice to a remote water consumption location uses heat from a nuclear reactor to melt part of the ice, to be mixed with broken ice fragments for movement through a pipeline |
| 06/21/2007 | DE102004030966B4 Verfahren zur multifunktionalen Steuerung der Wasserqualität an offenen Gewässern A method for multi-functional control of water quality in open waters |
| 06/20/2007 | CN1982649A Mining method |
| 06/05/2007 | US7225866 In situ thermal processing of an oil shale formation using a pattern of heat sources |
| 05/23/2007 | CN2903374Y Fluid filling hole sealing device capable of cutting |
| 05/23/2007 | CN1317483C Method of entering target geologic body and system |
| 05/16/2007 | CN1963149A Mining method for replacement of banded coal under building by waste rock |
| 05/16/2007 | CN1963148A Water-protection coal-mining method using structural key layer as waterproof layer |
| 05/16/2007 | CN1963147A Mining method |
| 05/09/2007 | CA2827237A1 Mobile oil sands mining system |
| 05/09/2007 | CA2567644A1 Mobile oil sands mining system |
| 05/09/2007 | CA2526336A1 Method and apparatus for oil sands ore mining |
| 04/26/2007 | US20070092339 Voided drilled shafts |
| 04/25/2007 | CN2893146Y Mine rock quarrying machine |
| 04/25/2007 | CN1952349A Mining method for replacement of pressed coal under village by waste rock |