| Patents for E21C 41 - Methods of underground or surface mining; Layouts therefor (2,789) |
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| 04/14/2009 | US7519515 System and method(s) of mine planning, design and processing |
| 04/09/2009 | DE202009001477U1 Einrichtung zum kontinuierlichen Abbau und Abtransport von Mineralien Means for continuously dismantling and removal of minerals |
| 04/08/2009 | CN101403304A Large dead zone residual ore recovery method |
| 04/08/2009 | CN101403303A Tunnel layout method suitable for residual mining |
| 04/02/2009 | WO2009039559A1 Modular ore processor |
| 04/02/2009 | US20090085395 Connection arrangements for mine conveyor sections |
| 04/02/2009 | CA2697521A1 Modular ore processor |
| 04/01/2009 | CN101400873A Waste disposal during pit mining |
| 03/26/2009 | WO2009037232A1 Method of raising the ph of acidic bodies of water |
| 03/26/2009 | CA2717088A1 Method of raising the ph of acidic bodies of water |
| 03/25/2009 | CN101392652A Bottom column stope process |
| 03/25/2009 | CN101392651A Multifunction downhole bottom ripping machine |
| 03/25/2009 | CN101392650A Sublevelling raise method |
| 03/11/2009 | CN101382074A Simple ore drawing method gently inclined ore |
| 03/11/2009 | CN101382073A 'Three-soft' low permeability high gas coal seam rapidly digging method |
| 03/11/2009 | CN100467829C Water-protection coal-mining method using structural key layer as waterproof layer |
| 02/26/2009 | WO2009025693A1 Method and system integrating thermal oil recovery and bitumen mining for thermal efficiency |
| 02/25/2009 | CN201198760Y Safe high-efficiency integrative matching equipment of large excavating high automatic fully mechanized working face |
| 02/25/2009 | CN101372891A Strip filling integral backstopping coal mining method |
| 02/18/2009 | CN101368482A Novel technique of slight-pitch ore body overall mining method |
| 02/17/2009 | US7490507 Method for determining the movement of a blast movement monitor and associated rock as a result of blasting operations |
| 02/12/2009 | DE102005055131B4 Vorrichtung und Verfahren zum Fördern löslicher Bodenschätze durch Solen Apparatus and method for delivering soluble mineral resources by Solen |
| 02/11/2009 | CN201193527Y Goaf coal low position recovery device in low position fully mechanized coal caving face |
| 02/11/2009 | CN101363317A Developing method for large-scale strip mine |
| 02/05/2009 | WO2009015468A1 Ore extraction using combined blast and thermal fragmentation |
| 02/05/2009 | US20090033140 Use Of Foam To Increase Resistance To Gas Flow In Mine Applications And Apparatus For Delivering Same |
| 02/05/2009 | CA2695658A1 Ore extraction using combined blast and thermal fragmentation |
| 01/29/2009 | US20090026829 Rotary cutting pick |
| 01/28/2009 | CN101353963A Vacant field coal excavating method of high-dipping coal bed slotted hole blasting unmanned operation working face |
| 01/27/2009 | CA2583519C Method and system for mining hydrocarbon-containing materials |
| 01/15/2009 | DE102007032582A1 Reihendruckluftantriebssystem und System zur Speicherung und Wiedergewinnung von Energie Series pneumatic drive system and system for storing and recovering energy |
| 01/14/2009 | CN201180544Y Intelligent full-automatic combined coal mining system |
| 01/08/2009 | DE19880580B4 Verfahren zur Überwachung des Arbeitszyklus von mobilen Maschinen während der Materialentfernung Method for monitoring the operating cycle of mobile machines during the material removal |
| 01/07/2009 | CN101338676A Movable or moved type crusher half-continuous process |
| 01/07/2009 | CN101338675A Open-cast side shrouded beneficial mineral open well combined mining method |
| 01/07/2009 | CN101338674A Non-pillar sublevel caving mining method for direct loading for ore |
| 12/25/2008 | US20080315665 Apparatus for assembling a liner |
| 12/25/2008 | US20080314593 In situ thermal processing of an oil shale formation using a pattern of heat sources |
| 12/24/2008 | WO2008155654A2 Hydrocarbon recovery drill string apparatus, subterranean hydrocarbon recovery drilling methods, and subterranean hydrocarbon recovery methods |
| 12/24/2008 | DE102007028812A1 Selbstfahrende Maschine zum Schneiden oder Fräsen, insbesondere Maschine zur Ausbeutung von Lagerstätten im Tagebaubetrieb Self-propelled machine for cutting or milling machine especially for the exploitation of minerals in open pit mining |
| 12/24/2008 | CN101329322A Hydraulic filling paste round-pipe-test simulation system |
| 12/24/2008 | CN101329321A Hydraulic filling paste round-pipe-test simulation system |
| 12/24/2008 | CN101329320A High concentration ground paste filling collar experiment simulation system |
| 12/24/2008 | CN101329319A Paste body filling collar experiment simulation system |
| 12/24/2008 | CN101329318A High concentration ground paste filling collar experiment simulation system |
| 12/24/2008 | CN101329317A Paste body filling collar experiment simulation system |
| 12/24/2008 | CN101328809A Non-bottom pillar deep hole falling-back type mining method |
| 12/24/2008 | CN101328791A Method and system for accessing subterranean deposits from the surface |
| 12/23/2008 | CA2583508C Method and system for mining hydrocarbon-containing materials |
| 12/16/2008 | CA2406623C Mining machine and method |
| 12/10/2008 | CN100441831C Ladder type mining method using united pillars to support roof and partition stope |
| 12/09/2008 | US7461901 Method and means for processing oil sands while excavating |
| 12/03/2008 | CN100439651C Land bridge method for recovery of pressed coal under highway |
| 11/27/2008 | WO2008141465A1 Subsurface positioning system and method for monitoring movement underground |
| 11/27/2008 | US20080290718 Waste Disposal During Pit Mining |
| 11/27/2008 | CA2688006A1 Subsurface positioning system and method for monitoring movement underground |
| 11/24/2008 | CA2589820A1 Subterranean positioning system for monitoring movement underground and method |
| 11/20/2008 | WO2008138418A1 Method for filling bulk material |
| 11/19/2008 | CN101307692A Sharply inclined coal seam mining method |
| 11/12/2008 | CN101302934A Coal mining method with three steps |
| 11/12/2008 | CN101302933A Method for developing rock lane comprehensive mechanization developing operation |
| 11/12/2008 | CN101302932A Method for underground chamber digging and laneway opening digging |
| 11/12/2008 | CN101302931A Method for extracting rim angle coal and re-extracting after warehouse coal extracting |
| 11/11/2008 | US7448692 Method and means for processing oil sands while excavating |
| 10/29/2008 | CN101294494A Mine rock material profile modeling recovery method and special equipment thereof |
| 10/15/2008 | CN101285384A Large diameter, deep borehole and non undercutting mining method |
| 10/15/2008 | CN100425798C Technique of mine flyash making thick liquid, delivering and injecting thick liquid |
| 10/09/2008 | WO2008048966A3 Method of collecting hydrocarbons using a barrier tunnel |
| 10/02/2008 | DE102007014662A1 Exploitation device driving method for use in underground mine, involves measuring gas concentration, and sending alarm when unqualified mutual relationship occurs between determined exploitation quantity and measured gas concentration |
| 10/01/2008 | EP1975369A2 Method and system for accessing subterranean deposits from the surface |
| 10/01/2008 | CN101277863A Method of driving plurality of mine vehicles in mine, and transport system |
| 09/24/2008 | CN101270664A Walking type reversed loader |
| 09/24/2008 | CN101270663A Bestriding type reversed loader |
| 09/18/2008 | US20080224527 Continuous extraction of underground narrow-vein metal-bearing deposits by thermal rock fragmentation |
| 09/18/2008 | DE10031883C5 Verfahren und Anordnung zur leistungsoptimierenden Regelung der Zufuhrmenge des Materials, das einer aus mehreren Aggregaten bestehenden Sand-, Kies- oder Splitaufbereitungsanlage zugeführt wird Method and system for performance optimizing control the supply amount of the material is fed a multiple aggregates of sand, gravel or grit treatment plant |
| 09/16/2008 | CA2582059A1 A method for producing a non-segregating waste stream |
| 09/10/2008 | CN201111547Y Iron ore mining-sorting machine |
| 09/10/2008 | CN101260805A Fully-mechanized mining method for safely passing bottom board laneway rock pillar |
| 08/26/2008 | US7418373 Blasting method |
| 08/20/2008 | CN101245706A Three-dimensional simulated experiment bench for coal and mash gas co-extraction |
| 08/13/2008 | CN101240715A One well three-purpose mash gas harnessing method for ground well drilling and ground well drilling |
| 08/12/2008 | US7410220 Apparatus for assembling a liner |
| 07/22/2008 | CA2357274C Highwall mining system |
| 07/17/2008 | WO2008085319A1 Methods of collecting crude oil and crude oil collection header apparatus |
| 07/16/2008 | CN101220745A Method for using poly-sodium acrylate as anti-caking agent of vulcanizing ore |
| 07/09/2008 | CN100400794C Method and system for accessing substerranean deposits from the surface |
| 07/03/2008 | DE102007060170A1 Coal mining device for use at long wall face of mine, has radio receiver connected with long wall face control device, where actual measured values are applied as value for alignment with feed rate and are made visible on screen |
| 06/26/2008 | DE102006042129B4 Verfahren zum Abbau von nicht sehr tief liegenden Bodenschätzen Process for the degradation of not very deep natural resources |
| 06/19/2008 | WO2008072971A1 Modification of flow velocity of industrially produced ice |
| 06/18/2008 | EP1931554A1 Method of driving plurality of mine vehicles in mine, and transport system |
| 06/18/2008 | CN101201004A Coal mining method |
| 06/17/2008 | CA2356731C Highwall mining system |
| 06/11/2008 | CN101196114A Delamination mining method |
| 06/11/2008 | CN100394339C Mining transportation management system and method thereof |
| 06/04/2008 | CN101191416A Rock lane digging method |
| 06/03/2008 | CA2521022C Method and system for extraction of resources from a subterranean well bore |
| 05/29/2008 | US20080121399 Method and system for accessing subterranean deposits from the surface |
| 05/29/2008 | CA2668774A1 Recovery of bitumen by hydraulic excavation |
| 05/28/2008 | CN101187308A Thin coal bed highly effective fully mechanized mining process |
| 05/27/2008 | US7377593 Continous extraction of underground narrow-vein metal-bearing deposits by thermal rock fragmentation |