| Patents for E21C 39 - Devices for testing in situ the hardness or other properties of minerals, e.g. for giving information as to the selection of suitable mining tools (220) |
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| 03/05/2015 | WO2015031803A1 Detecting sump depth of miner |
| 02/17/2015 | US8955918 Method and apparatus for increasing the yield in a deposit |
| 02/17/2015 | US8955917 Method and apparatus for increasing the yield in a deposit |
| 02/04/2015 | CN104329091A 一种基于采煤机截割电机多参数的煤岩性状识别系统及方法 Traits of a coal and rock identification system and method for multi-parameter shearer cutting motor based |
| 02/04/2015 | CN104329090A 一种基于采煤机截割电机温度的煤岩性状识别方法 A shearer cutting motor temperature trait recognition method based on coal and rock |
| 10/14/2014 | US8857915 Scanning system for 3D mineralogy modelling |
| 09/02/2014 | US8820845 Sensored pick assembly |
| 07/02/2014 | CN203685188U 采动覆岩破坏水平变形的双探头探测装置 Mining overburden damage horizontal deformation of the double probe detection device |
| 07/02/2014 | CN103899308A 检测并控制保护采掘机的方法及实施该方法的检测并利用检测结果控制保护冲击采掘机 Methods to detect and control the protection and implementation of mining machine detection of the method and the detection result to control the impact of mining machine protection |
| 04/24/2014 | WO2014059468A1 Locating underground markers |
| 04/23/2014 | CN103742143A Dual-probe detection method of horizontal deformation caused by overburden failure by mining |
| 04/08/2014 | CA2567221C A blast movement monitor |
| 04/01/2014 | CA2609931C Method and apparatus for ore processing |
| 02/18/2014 | CA2441621C Geosteering of solid mineral mining machines |
| 02/12/2014 | EP2695999A1 An excavation system and a method of excavation |
| 02/05/2014 | CN203420709U Mining borehole position indicating device |
| 02/05/2014 | CN103556999A Method for determining shield excavation soil pressure of watery weak stratum |
| 10/23/2013 | CN203248160U Coal recognition processor |
| 09/25/2013 | CN203214065U 围岩变形数字记录装置 Surrounding rock deformation digital recording device |
| 09/25/2013 | CN103321640A Intelligent mine information integrated system based on wireless network |
| 09/11/2013 | CN103291300A Mounting method of immediate roof dynamic monitor of comprehensive mechanized solid-filling coal mining |
| 08/07/2013 | CN103233738A Comprehensive weakening method of top coal of heavy-pitch super high seam |
| 07/10/2013 | CN103195425A System for rapidly measuring in-situ wall rock strength of coal mine tunnel |
| 07/09/2013 | CA2461521C Method and device for evaluating the physical parameters of an underground deposit using rock cuttings collected from it |
| 05/15/2013 | CN202937264U Electronically controlled single-loop water plugging and overburden rock fracture detector |
| 05/01/2013 | CN202914103U Overlying rock beam fault zone height and range monitoring system of coal mine stope |
| 04/16/2013 | CA2749631C A blast movement monitor and method for determining the movement of a blast movement monitor and associated rock as a result of blasting operations |
| 04/03/2013 | CN202851004U Dual-end constant pressure water-plugging feeler lever for detecting overlying strata crack |
| 04/03/2013 | CN103016007A Electronically controlled single-loop water-plugging overburden strata fracture detection method |
| 03/28/2013 | US20130076099 Method and Apparatus for Increasing the Yield in a Deposit |
| 02/27/2013 | CN102947541A Method and apparatus for increasing the yield of a deposit |
| 02/26/2013 | CA2534439C Geosteering detectors for boring-type continuous miners |
| 02/20/2013 | CN101363824B Device for real time monitoring mine roof rock formation or concrete structure stability |
| 02/13/2013 | CN102933962A Method and device for determining the local extension of mineral material in a rock |
| 01/10/2013 | CA2841131A1 Spectroscopic analysis of oil sands ore face for real time ore blend management |
| 11/29/2012 | DE102011050669A1 Method for selecting batch of e.g. magmatic rock for manufacturing building raw materials utilized for railroad line construction, involves assigning characteristic of natural stone to corresponding category to select batch of stone |
| 11/01/2012 | WO2012148679A1 Nmr analysis of unconventional reservoir rock samples |
| 10/24/2012 | CN101526009B Wall rock destabilization acousto-optic-electric integrated monitoring system and monitoring method thereof |
| 09/26/2012 | CN202451150U Novel coal mining machine |
| 09/19/2012 | CN101936161B In-situ measurement method for coal rock strength and deformation modulus |
| 08/15/2012 | CN102042016B Adaptive hard-rock impact rotary crushing system |
| 07/11/2012 | CN202325521U 综采工作面巷道贯通落差测量装置 Mechanized mining roadway through the gap measuring device |
| 04/27/2012 | CA2720080A1 Measurement of bulk density of the payload in a dragline bucket |
| 03/28/2012 | CN102392637A Novel coal cutter |
| 01/04/2012 | CN101519963B Filling mining multi-information dynamic monitoring method |
| 12/15/2011 | WO2011154170A1 Method and apparatus for determining the local spatial extent of the phase of valuable mineral in a rock |
| 12/15/2011 | WO2011154169A1 Method and apparatus for increasing the yield of a deposit |
| 12/15/2011 | CA2801630A1 Method and apparatus for determining the local spatial extent of the phase of valuable mineral in a rock |
| 12/14/2011 | EP2395352A1 Method and device for determining the local extension of mineral material in a rock |
| 12/07/2011 | EP2392772A1 Method and device for increasing the yield from a mineral deposit |
| 11/23/2011 | CN202047820U X-fluorescence petroleum analyzer |
| 09/14/2011 | CN101146979B Coal mining device |
| 09/06/2011 | US8011239 In situ sediment ecotoxicity assessment system |
| 08/31/2011 | CN201953380U 石油x荧光分析仪送样台 Oil x-ray fluorescence analyzer to send samples Taiwan |
| 07/20/2011 | CN201902208U Self-adaption hard rock impact rotary crushing system |
| 05/04/2011 | CN102042016A Adaptive hard-rock impact rotary crushing system |
| 05/04/2011 | CN101509382B Tunnel surveying method |
| 02/22/2011 | US7891233 Blast movement monitor |
| 01/05/2011 | CN201696049U Probe for sectional water injection observation of mine gob fracture zone |
| 01/05/2011 | CN201696048U Coal seam gob fracture zone water-injection observation system |
| 01/05/2011 | CN101936161A In-situ measurement method for coal rock strength and deformation modulus |
| 11/24/2010 | CN101892841A Observation system of water injection in fractured zone in coal seam goaf |
| 11/17/2010 | CN101886543A Exploring tube used for observing coal seam goaf fissure zone subsection water injection |
| 06/08/2010 | US7731453 Method and device for trenchless laying of pipelines |
| 04/28/2010 | EP1664672B1 Geosteering detectors for boring-type continuous miners |
| 04/28/2010 | CN201443401U Height-adjustable oil cylinder of coal winning machine |
| 03/31/2010 | CN201433768Y Gateway display system of coal mining machine |
| 03/30/2010 | US7686400 Geosteering detectors for rotary-type continuous miners |
| 03/17/2010 | CN100594369C Method and device for evaluating physical parameters of an underground reservoir from rock cuttings taken therefrom |
| 02/10/2010 | CN201401174Y System monitoring broken rock zone by high-density electrical resistivity |
| 01/13/2010 | CN201381879Y Sound, light and electricity integration monitoring system for instability of surrounding rock |
| 12/02/2009 | EP2128655A2 Excavator data acquisition and control system and process |
| 11/10/2009 | US7614278 Blast movement monitor |
| 09/09/2009 | CN101526009A Wall rock destabilization acousto-optic-electric integrated monitoring system and monitoring method thereof |
| 09/02/2009 | CN101519963A Filling mining multi-information dynamic monitoring method |
| 08/19/2009 | CN101509382A Tunnel surveying method |
| 08/19/2009 | CN101509378A Shallow buried thin bedrock coal bed short wall continuous mining technology suitable condition classification method |
| 02/17/2009 | US7490507 Method for determining the movement of a blast movement monitor and associated rock as a result of blasting operations |
| 02/11/2009 | CN101363824A Device for real time monitoring mine roof rock formation or concrete structure stability |
| 12/24/2008 | CN201170100Y Novel probe of downhole height guide viewer |
| 11/25/2008 | CA2377467C Cavity stability prediction method for wellbores |
| 11/05/2008 | CN201144702Y Apparatus for testing coal seam ploughing property |
| 10/08/2008 | CN100424321C Testing method and apparatus for geological mechanics parameter under coal mine |
| 08/14/2008 | US20080191541 Geosteering detectors for rotary-type continuous miners |
| 08/12/2008 | CA2337803C Method of determining in-situ stresses in an earth formation |
| 06/17/2008 | CA2438134C Process for predicting porosity and permeability of a coal bed |
| 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 | CA2567328A1 A blast movement monitor |
| 05/06/2008 | CA2567221A1 A blast movement monitor |
| 04/23/2008 | CN101165315A Method for monitoring mine rock stress state by electromagnetic radiation method |
| 04/22/2008 | US7360844 Geosteering detectors for boring-type continuous miners |
| 03/19/2008 | CN101146979A Coal mining device |
| 01/16/2008 | CN201007656Y Coal mining machine rocker arm height-adjustable real-time detection device |
| 01/03/2008 | DE19944032B4 Vorrichtung und Verfahren zur Erzeugung seismischer Schwingungen Apparatus and method for generating seismic vibrations |
| 12/20/2007 | US20070292212 Method and Device for Trenchless Laying of Pipelines |
| 11/21/2007 | CN100350130C Method and apparatus for research and evaluation of foundation type |
| 08/08/2007 | EP1664672A4 Geosteering detectors for boring-type continuous miners |
| 07/26/2007 | US20070169542 Blast movement monitor |
| 07/18/2007 | CN2924017Y Multidirection wall-rock casing monitoring alarm |
| 07/05/2007 | US20070151471 Method for determining the movement of a blast movement monitor and associated rock as a result of blasting operations |