| Patent | Date |
|---|
Device and method for detecting angle of shearer rocker arm based on optical fiber sensing
Grant 11307025 - | 2022-04-19 |
Drive system of scraper conveyor and control method
Grant 11305946 - | 2022-04-19 |
Fracturing relief method for stress concentration of remaining ore pillars in overlying goaf
Grant 11299954 - | 2022-04-12 |
Method of recovering room-and-pillar coal pillar by using external replacement supports
Grant 11021954 - | 2021-06-01 |
Experimental Method For Coal Desulfurization And Deashing Using Permeation And Solvating Power Of A Supercritical Fluid
App 20210155868A1 - | 2021-05-27 |
Method For Extracting Gas By Fracturing Coal Seam Through Combination Of Hydraulic Slotting And Multi-stage Combustion Impact Wave
App 20210148205 - LIN; Baiquan ; et al. | 2021-05-20 |
Mine Exploitation, Separation And Filing, And X Exploitation
App 20210148228 - ZHANG; Jixiong ; et al. | 2021-05-20 |
Method for analyzing coalbed methane geological selection of multi-coalbed high ground stress region
Grant 11,008,859 - Wu , et al. May 18, 2 | 2021-05-18 |
Space-saving movable door/window system capable of being fully opened
Grant 11,002,051 - Ji , et al. May 11, 2 | 2021-05-11 |
Simulation test method for gas extraction from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity
Grant 10,995,572 - Sang , et al. May 4, 2 | 2021-05-04 |
Large-tonnage coal dropping buffer skip for mine
Grant 10,988,347 - Peng , et al. April 27, 2 | 2021-04-27 |
Multi-functional support capable of transferring horizontal and multi-point local vertical load and implementation method
Grant 10,989,638 - Chen , et al. April 27, 2 | 2021-04-27 |
Online monitoring system for crack on hoist spindle and operation method thereof
Grant 10,989,695 - Zhu , et al. April 27, 2 | 2021-04-27 |
Single-drive bidirectional-crawling pipe-cleaning robot
Grant 10,981,203 - Liu , et al. April 20, 2 | 2021-04-20 |
Self-priming water turbine-driven reel sprinkler irrigation machine
Grant 10,973,180 - Qiu , et al. April 13, 2 | 2021-04-13 |
Hydraulic support monitoring support pose in real time based on inertia measurement unit and detection method thereof
Grant 10,975,695 - Wang , et al. April 13, 2 | 2021-04-13 |
Telescopic jacking stepwise rollback-type reel sprinkling irrigation machine
Grant 10,973,181 - Qiu , et al. April 13, 2 | 2021-04-13 |
Underground Coal Separation Process Adopting Water Medium
App 20210094045 - GUI; Xiahui ; et al. | 2021-04-01 |
Method for detecting insulation damage location in reflux rail of subway/coal mine and transition resistance thereof
Grant 10,962,605 - Xu , et al. March 30, 2 | 2021-03-30 |
Serpentine Inspection Robot Mechanism For Lifting Cage Guide Driven By Magnetic Wheels
App 20210078165 - TANG; Chaoquan ; et al. | 2021-03-18 |
Measurement-while-drilling method and device for assessing outburst risk of coal seam
Grant 10,947,842 - Wang , et al. March 16, 2 | 2021-03-16 |
Hoisting Container Pose Control Method Of Double-rope Winding Type Ultra-deep Vertical Shaft Hoisting System
App 20210070586 - SHEN; Gang ; et al. | 2021-03-11 |
Long-distance drilling and hydrofracturing integrated device and method in underground mine
Grant 10,941,641 - Huang , et al. March 9, 2 | 2021-03-09 |
Blind bolt fastening device
Grant 10,941,803 - Chang , et al. March 9, 2 | 2021-03-09 |
System for extracting gas from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity
Grant 10,934,817 - Sang , et al. March 2, 2 | 2021-03-02 |
Hydro-viscous speed regulating device for heavy-load start of belt conveyor
Grant 10,935,084 - Meng , et al. March 2, 2 | 2021-03-02 |
Tension Balance System And Method For Steel Wire Ropes On Friction Hoisting Driving End Of Ultra-deep Well
App 20210053805 - ZHEN; Zhencai ; et al. | 2021-02-25 |
Multi-functional Support Capable Of Transferring Horizontal And Multi-point Local Vertical Load And Implementation Method
App 20210048380 - CHEN; Wei ; et al. | 2021-02-18 |
Method For Precisely Extracting Coal-mine Gas
App 20210040822 - ZHU; Chuanjie ; et al. | 2021-02-11 |
Online Monitoring System For Crack On Hoist Spindle And Operation Method Thereof
App 20210041402 - LU; Hao ; et al. | 2021-02-11 |
Device and method for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end
Grant 10,913,636 - Cao , et al. February 9, 2 | 2021-02-09 |
Reaming and self-rotating anchor rod and using method thereof
Grant 10,907,474 - Zhang , et al. February 2, 2 | 2021-02-02 |
Prefabricated Stairs Modular Assembly Mold And Assembling Method Thereof
App 20210017775 - CHANG; Hong ; et al. | 2021-01-21 |
Self-detection device for liner plate of hoisting container and detection method
Grant 10,894,697 - Peng , et al. January 19, 2 | 2021-01-19 |
Movable belt breakage prevention and catching system for belt conveyor
Grant 10,894,670 - Zhou , et al. January 19, 2 | 2021-01-19 |
Vibrating type hard rock cutting mechanism with function of directional high-speed abrasive jet advanced slitting
Grant 10,895,153 - Jiang , et al. January 19, 2 | 2021-01-19 |
Mine drill, dust suction hood and dust removal device thereof
Grant 10,895,120 - Yang , et al. January 19, 2 | 2021-01-19 |
Base mechanism of single prop capable of being unloaded at reduced pressure
Grant 10,895,154 - Zhang , et al. January 19, 2 | 2021-01-19 |
Hydraulic Support Monitoring Support Pose In Real Time Based On Inertia Measurement Unit And Detection Method Thereof
App 20210010373 - WANG; Zhongbin ; et al. | 2021-01-14 |
Self-priming Water Turbine-driven Reel Sprinkler Irrigation Machine
App 20210000026 - QIU; Zhipeng ; et al. | 2021-01-07 |
Embedded Scraper Rotation Angle Detection Device For Scraper Conveyor And Detection Method
App 20210002080 - TANG; Yu ; et al. | 2021-01-07 |
Embedded scraper rotation angle detection device for scraper conveyor and detection method
Grant 10,882,700 - Tang , et al. January 5, 2 | 2021-01-05 |
Movable Belt Breakage Prevention And Catching System For Belt Conveyor
App 20200407171 - ZHOU; Gongbo ; et al. | 2020-12-31 |
Method For Detecting Insulation Damage Location In Reflux Rail Of Subway/coal Mine And Transition Resistance Thereof
App 20200408850 - XU; Shaoyi ; et al. | 2020-12-31 |
Mine Exploitation Based On Stoping, Separation And Filling Control
App 20200408094 - ZHANG; Jixiong ; et al. | 2020-12-31 |
Self-detection Device For Liner Plate Of Hoisting Container And Detection Method
App 20200407196 - PENG; Yuxing ; et al. | 2020-12-31 |
Modular quality improvement process and quality improvement system for high density coal measures oil shale
Grant 10,875,055 - Zhang , et al. December 29, 2 | 2020-12-29 |
Device And Method For Adjusting Tension Of A Steel Wire Rope Of An Ultra-deep Vertical Shaft At A Hoisting-container-end
App 20200399095 - CAO; Guohua ; et al. | 2020-12-24 |
Hydro-viscous Speed Regulating Device For Heavy-load Start Of Belt Conveyor
App 20200400202 - MENG; Qingrui ; et al. | 2020-12-24 |
Apparatus and method for measuring rotational angle of sinking platform
Grant 10,870,559 - Cao , et al. December 22, 2 | 2020-12-22 |
Large-tonnage Skip Anti-blocking System
App 20200391979 - ZHU; Zhencai ; et al. | 2020-12-17 |
Single-drive Bidirectional-crawling Pipe-cleaning Robot
App 20200384512 - LIU; Songyong ; et al. | 2020-12-10 |
Permeability enhancement method for coalbed methane wells by using electric pulse detonation fracturing technology
Grant 10,858,913 - Lin , et al. December 8, 2 | 2020-12-08 |
Internally Injected Replacement Support Room-type Coal Pillar Recovery Method
App 20200378255 - ZHOU; Nan ; et al. | 2020-12-03 |
Method For Classifying Phreatic Leakage Disaster Level In Shallow Coal Seam Mining
App 20200378258 - LI; Wenping ; et al. | 2020-12-03 |
Mine Exploitation, Separation, Filling And Treatment Exploitation Method
App 20200378256 - ZHANG; Jixiong ; et al. | 2020-12-03 |
Device For Cage Jamming Buffer Of Large-tonnage Hoisting System Of Ultra-deep Shaft
App 20200377336 - CAO; Guohua ; et al. | 2020-12-03 |
Risk Evaluation Method Of Overburden Bed-separation Water Disaster In Mining Area
App 20200370433 - LI; Wenping ; et al. | 2020-11-26 |
Mechanical constant-resistance single prop continuous prop lifting pre-tightening device and method
Grant 10,844,717 - Chen , et al. November 24, 2 | 2020-11-24 |
Hydraulic Accumulator-based Controllable Pressure Injection Device And Method
App 20200355031 - LIU; Songyong ; et al. | 2020-11-12 |
System and method for remotely locating communication error support for hydraulic supports
Grant 10,830,044 - Tan , et al. November 10, 2 | 2020-11-10 |
Method of extracting gas from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity
Grant 10,830,018 - Sang , et al. November 10, 2 | 2020-11-10 |
Apparatus for protecting roof tray when gob-side entry retaining end support migrates
Grant 10,822,949 - Bai , et al. November 3, 2 | 2020-11-03 |
Reliability robust design method for multiple failure modes of ultra-deep well hoisting container
Grant 10,824,781 - Lu , et al. November 3, 2 | 2020-11-03 |
Coupled system and method for the separation and drying of moist fine particle coal
Grant 10,821,477 - Dong , et al. November 3, 2 | 2020-11-03 |
Large-tonnage Coal Dropping Buffer Skip For Mine
App 20200339388 - PENG; Yuxing ; et al. | 2020-10-29 |
System For Extracting Gas From Tectonically-deformed Coal Seam In-situ By Depressurizing Horizontal Well Cavity
App 20200340335 - SANG; Shuxun ; et al. | 2020-10-29 |
Method Of Extracting Gas From Tectonically-deformed Coal Seam In-situ By Depressurizing Horizontal Well Cavity
App 20200340333 - SANG; Shuxun ; et al. | 2020-10-29 |
Multiple-state health monitoring apparatus and monitoring method for critical components in hoisting system
Grant 10,815,098 - Zhou , et al. October 27, 2 | 2020-10-27 |
Device for enabling autonomous powering of monitoring node of scraper conveyor chain
Grant 10,819,128 - Zhou , et al. October 27, 2 | 2020-10-27 |
Integrated hole sealing device for loosening blasting and water injection of underground deep hole
Grant 10,816,312 - Yang , et al. October 27, 2 | 2020-10-27 |
Method for extracting thermal energy in underground high temperature area of coalfield fire area
Grant 10,816,241 - Zhong , et al. October 27, 2 | 2020-10-27 |
Gas-powder separation three-phase jet flow fire monitor system
Grant 10,814,260 - Li , et al. October 27, 2 | 2020-10-27 |
Multi-stage combustion impact wave coal mass cracking and heat injection alternating intensified gas extracting method
Grant 10,808,514 - Lin , et al. October 20, 2 | 2020-10-20 |
Method for optimizing sensor network node location in geological CO.sub.2 storage area
Grant 10,808,502 - Yang , et al. October 20, 2 | 2020-10-20 |
Eccentric swinging stepwise rollback-type reel sprinkling irrigation machine
Grant 10,798,890 - Qiu , et al. October 13, 2 | 2020-10-13 |
Integral Clamping Steel Strand Drawing Test Apparatus, And Method For Using Same
App 20200319069 - Zhang; Nong ; et al. | 2020-10-08 |
Method Of Recovering Room-and-pillar Coal Pillar By Using External Replacement Supports
App 20200318480 - ZHOU; Nan ; et al. | 2020-10-08 |
Simulation Test System For Gas Extraction From Tectonically-deformed Coal Seam In-situ By Depressurizing Horizontal Well Cavity
App 20200318476 - SANG; Shuxun ; et al. | 2020-10-08 |
Self-drilling differential grouting combined bolt and anchoring method therefor
Grant 10,794,183 - Xu October 6, 2 | 2020-10-06 |
Method For Controlling Subsidence Area Caused By Underground Mining In Adjoining Open-pit Mine
App 20200300090 - Ju; Feng ; et al. | 2020-09-24 |
Base Mechanism Of Single Prop Capable Of Being Unloaded At Reduced Pressure
App 20200300088 - ZHANG; Qiang ; et al. | 2020-09-24 |
Telescopic Jacking Stepwise Rollback-type Reel Sprinkling Irrigation Machine
App 20200281135 - QIU; Zhipeng ; et al. | 2020-09-10 |
Synchronous monitoring device and method for radial and axial vibration of shearer drum
Grant 10,768,379 - Xu , et al. Sep | 2020-09-08 |
Extensible reaming self-anchoring anchor rod and supporting method thereof
Grant 10,767,480 - Zhang , et al. Sep | 2020-09-08 |
Simulation Test Method For Gas Extraction From Tectonically-deformed Coal Seam In-situ By Depressurizing Horizontal Well Cavity
App 20200263511 - SANG; Shuxun ; et al. | 2020-08-20 |
Reaming and Self-Rotating Anchor Rod and Using Method Thereof
App 20200248552 - Kind Code | 2020-08-06 |
Method For Determining Internal Stress Of Solid-cut-and-fill Material
App 20200241169 - Li; Meng ; et al. | 2020-07-30 |
Coupled System And Method For The Separation And Drying Of Moist Fine Particle Coal
App 20200238337 - DONG; Liang ; et al. | 2020-07-30 |
Mechanical Constant-resistance Single Prop Continuous Prop Lifting Pre-tightening Device And Method
App 20200240269 - Chen; Yanlong ; et al. | 2020-07-30 |
Permeability Enhancement Method For Coalbed Methane Wells By Using Electric Pulse Detonation Fracturing Technology
App 20200240246 - LIN; Bai quan ; et al. | 2020-07-30 |
Blockage Removal And Permeability Enhancement Method For Coalbed Methane Wells By Using Electric Pulses
App 20200240245 - LIN; Bai quan ; et al. | 2020-07-30 |
Method For Classifying Eco-geological Environment Types Based On Coal Resource Exploitation
App 20200234170 - LI; Wenping ; et al. | 2020-07-23 |
Synchronous Monitoring Device And Method For Radial And Axial Vibration Of Shearer Drum
App 20200233153 - XU; Shaoyi ; et al. | 2020-07-23 |
Vibrating Type Hard Rock Cutting Mechanism With Function Of Directional High-speed Abrasive Jet Advanced Slitting
App 20200223098 - JIANG; Hongxiang ; et al. | 2020-07-16 |
Extensible Reaming Self-anchoring Anchor Rod And Supporting Method Thereof
App 20200217201 - ZHANG; Nong ; et al. | 2020-07-09 |
Long-distance Drilling And Hydrofracturing Integrated Device And Method In Underground Mine
App 20200208504 - HUANG; Bingxiang ; et al. | 2020-07-02 |
Method for determining physical similarity simulation material of solid backfill body
Grant 10,697,873 - Zhang , et al. | 2020-06-30 |
Mine Drill, Dust Suction Hood And Dust Removal Device Thereof
App 20200199954 - YANG; Wei ; et al. | 2020-06-25 |
Device For Enabling Autonomous Powering Of Monitoring Node Of Scraper Conveyor Chain
App 20200203970 - ZHOU; Gongbo ; et al. | 2020-06-25 |
Measurement-while-drilling Method And Device For Assessing Outburst Risk Of Coal Seam
App 20200200004 - WANG; Enyuan ; et al. | 2020-06-25 |
Multi-stage Combustion Impact Wave Coal Mass Cracking And Heat Injection Alternating Intensified Gas Extracting Method
App 20200182033 - LIN; Baiquan ; et al. | 2020-06-11 |
Sealing Pressing Head For Conventional Triaxial Test Of Cuboid Rocks With Pre-existing Fissures, And Test Method
App 20200182760 - Yang; Shengqi ; et al. | 2020-06-11 |
Integrated Hole Sealing Device For Loosening Blasting And Water Injection Of Underground Deep Hole
App 20200182597 - YANG; Wei ; et al. | 2020-06-11 |
Wireless sensor node with hierarchical protection structure
Grant 10,680,662 - Zhou , et al. | 2020-06-09 |
Boat-shaped sprinkler irrigation machine for large-scale farm irrigation canals
Grant 10,674,684 - Qiu , et al. | 2020-06-09 |
Energy storage system coupling phase change material and dissipation heat pipe
Grant 10,663,232 - Rao , et al. | 2020-05-26 |
Double-spring and high-precision hysteretic pressure control valve
Grant 10,663,982 - Liu , et al. | 2020-05-26 |
Method for rock burst prevention by active support reinforcement and active pressure relief
Grant 10,655,465 - Lu , et al. | 2020-05-19 |
Method using artificial freezing technique for sealing and displacement of soil pollutant
Grant 10,654,082 - Wang , et al. | 2020-05-19 |
Physical-chemical composite inhibitor for controlling spontaneous combustion of low-rank coal and method of preparing and using same
Grant 10,648,336 - Zhong , et al. | 2020-05-12 |
Boat-shaped Sprinkler Irrigation Machine For Large-scale Farm Irrigation Canals
App 20200137968A1 - | 2020-05-07 |
Multiple-state Health Monitoring Apparatus And Monitoring Method For Critical Components In Hoisting System
App 20200131003 - ZHOU; Gongbo ; et al. | 2020-04-30 |
Method For Analyzing Coalbed Methane Geological Selection Of Multi-coalbed High Ground Stress Region
App 20200131902 - WU; Caifang ; et al. | 2020-04-30 |
Modular Quality Improvement Process And Quality Improvement System For High Density Coal Measures Oil Shale
App 20200130018 - ZHANG; Bo ; et al. | 2020-04-30 |
Eccentric Swinging Stepwise Rollback-type Reel Sprinkling Irrigation Machine
App 20200128766A1 - | 2020-04-30 |
Double-spring And High-precision Hysteretic Pressure Control Valve
App 20200133311 - LIU; Xiumei ; et al. | 2020-04-30 |
Testing System And Method For Measuring Loss Of Particles In Water Inrush Process In Real Time
App 20200116610 - WANG; Yingchao ; et al. | 2020-04-16 |
Measurement-while-drilling Method And Device For Obtaining Coal Seam Gas Parameter
App 20200116016 - WANG; Enyuan ; et al. | 2020-04-16 |
Vertical shaft steel wire rope cage guide sliding sleeve device and detection method thereof
Grant 10,619,991 - Zhou , et al. | 2020-04-14 |
Combined automatic anti-explosion method for gas drainage pipeline
Grant 10,612,379 - Lu , et al. | 2020-04-07 |
Mine TEM three-component detection method
Grant 10,613,245 - Yu , et al. | 2020-04-07 |
Closed circulation system for production of a polymer solution and improving operating efficiency of a gas drainage pump used in a coal mine
Grant 10,613,554 - Zhou , et al. | 2020-04-07 |
Method for recovering room-mining coal pillars by solid filling in synergy with artificial pillars
Grant 10,612,378 - Zhang , et al. | 2020-04-07 |
Apparatus for prestressing concrete floor of inclined shaft wall
Grant 10,612,241 - Wang , et al. | 2020-04-07 |
Physical-chemical Composite Inhibitor For Controlling Spontaneous Combustion Of Low-rank Coal And Method Of Preparing And Using
App 20200095864 - ZHONG; Xiaoxing ; et al. | 2020-03-26 |
Wireless Sensor Node With Hierarchical Protection Structure
App 20200091945 - ZHOU; Gongbo ; et al. | 2020-03-19 |
Self-drilling Differential Grouting Combined Bolt And Anchoring Method Therefor
App 20200056479 - XU; Guoan | 2020-02-20 |
Combined Automatic Anti-explosion Method For Gas Drainage Pipeline
App 20200040726 - LU; Caiping ; et al. | 2020-02-06 |
Thermal electricity conversion based on the heat extracted from underground coal fires
App 20200036303 - Zhou; Fubao ; et al. | 2020-01-30 |
Method For Rock Burst Prevention By Active Support Reinforcement And Active Pressure Relief
App 20200032647 - LU; Caiping ; et al. | 2020-01-30 |
Method for Optimizing Sensor Network Node Location in Geological CO2 Storage Area
App 20200024930 - Yang; Hui ; et al. | 2020-01-23 |
Blind Bolt Fastening Device
App 20200003247 - CHANG; Hongfei ; et al. | 2020-01-02 |
Method For Determining Physical Similarity Simulation Material Of Solid Backfill Body
App 20200003667 - ZHANG; Jixiong ; et al. | 2020-01-02 |
Slope-adaptive inclined special elevator
Grant 10,513,419 - Cao , et al. Dec | 2019-12-24 |
Apparatus For Prestressing Concrete Floor Of Inclined Shaft Wall
App 20190383016 - WANG; Yansen ; et al. | 2019-12-19 |
Space-saving Movable Door/window System Capable Of Being Fully Opened
App 20190376330 - JI; Xiang ; et al. | 2019-12-12 |
Vertical Shaft Steel Wire Rope Cage Guide Sliding Sleeve Wear Amount Detection Device And Detection Method Thereof
App 20190376780 - ZHOU; Gongbo ; et al. | 2019-12-12 |
Inspection apparatus and method for patrol-inspection of rigid cage channel
Grant 10,501,132 - Zhou , et al. Dec | 2019-12-10 |
Automatic straightening device and method for scraper conveyor on fully-mechanized coal mining face based on tensile and compressive force sensors
Grant 10,494,925 - Yan , et al. De | 2019-12-03 |
Method For Dynamic Water Feeding And Hole Sealing Using High Water-absorbent Resin
App 20190360336 - LIN; Bai quan ; et al. | 2019-11-28 |
Reliability Robust Design Method For Multiple Failure Modes Of Ultra-d Eep Well Hoisting Container
App 20190362041 - LU; Hao ; et al. | 2019-11-28 |
Method for constructing networked preferential gas migration pathways and diverting and extracting gas
Grant 10,487,656 - Lin , et al. Nov | 2019-11-26 |
Anchoring method utilizing self-drilling and self-anchoring extendable anchor rod applicable to soft and weak coal rocks
Grant 10,487,654 - Zhang , et al. Nov | 2019-11-26 |
Stampede preventing method for pedestrian passage in confined space of subway
Grant 10,480,139 - Zhou , et al. Nov | 2019-11-19 |
Automatic Straightening Device And Method For Scraper Conveyor On Fully-mechanized Coal Mining Face Based On Tensile And Compres
App 20190345824 - YAN; HAIFENG ; et al. | 2019-11-14 |
Gas-powder Separation Three-phase Jet Flow Fire Monitor System
App 20190344107 - LI; Beibei ; et al. | 2019-11-14 |
Method for Extracting Thermal Energy in Underground High Temperature Area of Coalfield Fire Area
App 20190346180 - ZHONG; Xiaoxing ; et al. | 2019-11-14 |
Method for stepwise construction of preferential gas migration pathway at stope in coal seam
Grant 10,472,963 - Lin , et al. Nov | 2019-11-12 |
Slope-Adaptive Inclined Special Elevator
App 20190337762 - CAO; Guohua ; et al. | 2019-11-07 |
Mine Tem Three-component Detection Method
App 20190339413 - YU; Jingcun ; et al. | 2019-11-07 |
Apparatus And Method For Measuring Rotational Angle Of Sinking Platform
App 20190337773 - CAO; Guohua ; et al. | 2019-11-07 |
Stress-transfer Method In Tunnel With High Ground Pressure Based On Fracturing Ring
App 20190316454 - HUANG; Bingxiang ; et al. | 2019-10-17 |
Method For Recovering Room-mining Coal Pillars By Solid Filling In Synergy With Artificial Pillars
App 20190301283 - ZHANG; Jixiong ; et al. | 2019-10-03 |
Energy Storage System Coupling Phase Change Material And Dissipation Heat Pipe
App 20190293359 - RAO; ZHONGHAO ; et al. | 2019-09-26 |
Method of estimating tension of chain of scraper conveyor
Grant 10,422,709 - Zhu , et al. Sept | 2019-09-24 |
Closed Circulation System For Improving Operating Efficiency Of Gas Drainage Pump
App 20190286174 - ZHOU; Fubao ; et al. | 2019-09-19 |
Method of sorting and utilizing coal and rock for coal and rock combined mining face
Grant 10,413,911 - Lin , et al. Sept | 2019-09-17 |
Method Using Artificial Freezing Technique For Sealing And Displacement Of Soil Pollutant
App 20190275572 - WANG; Jianzhou ; et al. | 2019-09-12 |
Hydraulic elevating platform having no guide rails and elevating method
Grant 10,399,822 - Zhu , et al. Sep | 2019-09-03 |
Quantitative evaluation method for reliability of Markov model switched reluctance motor system
Grant 10,393,811 - Chen , et al. A | 2019-08-27 |
Apparatus and method for pre-loading mechanical constant-resistance single prop
Grant 10,385,692 - Zhang , et al. A | 2019-08-20 |
Stampede Preventing Method For Pedestrian Passage In Confined Space Of Subway
App 20190249382 - ZHOU; Fubao ; et al. | 2019-08-15 |
Method for gas extraction alternating oscillating pulse high energy gas extraction with thermal injection
Grant 10,378,327 - Lin , et al. A | 2019-08-13 |
Method for integrated drilling, flushing, slotting and thermal injection for coalbed gas extraction
Grant 10,370,942 - Lin , et al. | 2019-08-06 |
Device And Method For Periodically Inspecting Rigid Guide
App 20190225287 - ZHOU; Gongbo ; et al. | 2019-07-25 |
Variable gradient inclined running container traction rope adjustment apparatus and method
Grant 10,351,391 - Cao , et al. July 16, 2 | 2019-07-16 |
Process method for withdrawing and recovering mechanical constant-resistance single prop
Grant 10,352,167 - Zhang , et al. July 16, 2 | 2019-07-16 |
Anchoring Method Utilizing Self-drilling And Self-anchoring Extendable Anchor Rod Applicable To Soft And Weak Coal Rocks
App 20190169987 - ZHANG; Nong ; et al. | 2019-06-06 |
Method for designing supporting parameters of transition support for mixed mining face of filling and fully-mechanized mining
Grant 10,301,939 - Zhang , et al. | 2019-05-28 |
Shock-absorbing and energy-collecting roller cage shoe
Grant 10,301,150 - Peng , et al. | 2019-05-28 |
Method For Constructing Networked Preferential Gas Migration Pathways And Diverting And Extracting Gas
App 20190145260 - LIN; Baiquan ; et al. | 2019-05-16 |
Method For Stepwise Construction Of Preferential Gas Migration Pathway At Stope In Coal Seam
App 20190145259 - LIN; Baiquan ; et al. | 2019-05-16 |
Detection device and method for improving layer-to-layer transition of steel wire ropes
Grant 10,288,549 - Peng , et al. | 2019-05-14 |
Method of performing combined drilling, flushing, and cutting operations on coal seam having high gas content and prone to bursts to relieve pressure and increase permeability
Grant 10,280,686 - Lin , et al. | 2019-05-07 |
Full-roadway full-process full-cross-section surface deformation monitoring device and method
Grant 10,280,750 - Zhang , et al. | 2019-05-07 |
Fracture detection system and method for dumbbell pin of scraper conveyor
Grant 10,273,091 - Li , et al. | 2019-04-30 |
Anti-spalling blocking bar for large cross-section coal gallery excavation work surface and supporting method
Grant 10,247,001 - Yang , et al. | 2019-04-02 |
Detection Device And Method For Improving Layer-to-layer Transition Of Steel Wire Ropes
App 20190094127 - PENG; Yuxing ; et al. | 2019-03-28 |
Process Method For Withdrawing And Recovering Mechanical Constant-resistance Single Prop
App 20190085691 - ZHANG; Jixiong ; et al. | 2019-03-21 |
Apparatus And Method For Pre-loading Mechanical Constant-resistance Single Prop
App 20190085690 - ZHANG; Jixiong ; et al. | 2019-03-21 |
Drilling and bursting heading machine
Grant 10,233,755 - Liu , et al. | 2019-03-19 |
Design Method For Mining Upper Protective Seam Close To Total Rock For Use In Coal-bed Mining
App 20190071967 - ZHANG; Jixiong ; et al. | 2019-03-07 |
Three-phase switched reluctance motor torque ripple three-level suppression method
Grant 10,224,855 - Chen , et al. | 2019-03-05 |
Method and system for tracking moving objects based on optical flow method
Grant 10,217,229 - Cheng , et al. Feb | 2019-02-26 |
Breakage detection system and method of chains of a scraper conveyor
Grant 10,207,874 - Li , et al. Feb | 2019-02-19 |
Intelligent charger with diagnostic function and charging method
Grant 10,205,329 - Zhou , et al. Feb | 2019-02-12 |
Scraper conveyor chain tensioning device having sweeping function
Grant 10,173,846 - Yang , et al. J | 2019-01-08 |
Phase current integration method for diagnosing fault in switched reluctance motor power converter
Grant 10,168,375 - Chen , et al. J | 2019-01-01 |
Full-roadway Full-process Full-cross-section Surface Deformation Monitoring Device And Method
App 20180371907 - ZHANG; Nong ; et al. | 2018-12-27 |
Method for creating switch reluctance motor memory sensor model
Grant 10,164,560 - Chen , et al. Dec | 2018-12-25 |
Method of catalytic oxidation of lignite using oxygen as oxidant at atmospheric pressure
Grant 10,160,712 - Liang , et al. Dec | 2018-12-25 |
Method And System For Tracking Moving Objects Based On Optical Flow Method
App 20180365843 - CHENG; Deqiang ; et al. | 2018-12-20 |
Self-heat-dissipation pressure-reducing valve
Grant 10,139,011 - Liu , et al. Nov | 2018-11-27 |
Eccentric loading adjusting mechanism and method for parallel suspension platform
Grant 10,118,811 - Zhu , et al. November 6, 2 | 2018-11-06 |
Method For Designing Supporting Parameters Of Transition Support For Mixed Mining Face Of Filling And Fully-mechanized Mining
App 20180314770 - ZHANG; Jixiong ; et al. | 2018-11-01 |
Device and method for detecting wall abrasion of solid filler feeding well
Grant 10,113,854 - Zhang , et al. October 30, 2 | 2018-10-30 |
Multipoint coal and rock mass stress real-time monitoring device and method
Grant 10,082,433 - Wang , et al. September 25, 2 | 2018-09-25 |
Eccentric Loading Adjusting Mechanism And Method For Parallel Suspension Platform
App 20180265339 - ZHU; Zhencai ; et al. | 2018-09-20 |
Switched Reluctance Motor Modeling Method
App 20180262134 - CHEN; Hao ; et al. | 2018-09-13 |
Chain fault diagnosis system and method for scraper conveyor
Grant 10,065,804 - Jiang , et al. September 4, 2 | 2018-09-04 |
Method for integrated drilling, slotting and oscillating thermal injection for coal seam gas extraction
Grant 10,060,238 - Lin , et al. August 28, 2 | 2018-08-28 |
Method Of Catalytic Oxidation Of Lignite Using Oxygen As Oxidant At Atmospheric Pressure
App 20180237371 - LIANG; Jing ; et al. | 2018-08-23 |
Self-heat-dissipation Pressure-reducing Valve
App 20180238472 - LIU; Xiumei ; et al. | 2018-08-23 |
METHOD OF SORTING AND UTILIZING COAL AND ROCK FOR COAL AND ROCK Combined MINING FACE
App 20180229245 - LIN; Boquan ; et al. | 2018-08-16 |
Chain Fault Diagnosis System And Method For Scraper Conveyor
App 20180229941 - JIANG; Fan ; et al. | 2018-08-16 |
Variable Gradient Inclined Running Container Traction Rope Adjustment Apparatus And Method
App 20180222719 - CAO; Guohua ; et al. | 2018-08-09 |
Intelligent Charger With Diagnostic Function And Charging Method
App 20180219393 - ZHOU; Gongbo ; et al. | 2018-08-02 |
Method for removing hydraulic support for solid filling coal mining
Grant 10,036,252 - Ju , et al. July 31, 2 | 2018-07-31 |
Method For Gas Extraction Alternating Oscillating Pulse High Energy Gas Extraction With Thermal Injection
App 20180209259 - LIN; Baiquan ; et al. | 2018-07-26 |
Method For Integrated Drilling, Slotting And Oscillating Thermal Injection For Coal Seam Gas Extraction
App 20180209255 - LIN; Baiquan ; et al. | 2018-07-26 |
Self-regenerative integrated device for synergetic oxidation of low-concentration gas and ventilation gas in coal mine
Grant 10,022,668 - Lin , et al. July 17, 2 | 2018-07-17 |
Parallel Digging, Mining And Filling Operation Coal Mining Method For Controlling Overlaying Strata Fracture And Surface Subsidence
App 20180195386 - MA; Liqiang ; et al. | 2018-07-12 |
Drilling and Bursting Heading Machine
App 20180195388 - Liu; Songyong ; et al. | 2018-07-12 |
Anti-spalling Blocking Bar For Large Cross-section Coal Gallery Excavation Work Surface And Supporting Method
App 20180195389 - YANG; Shengqi ; et al. | 2018-07-12 |
Breakage Detection System And Method Of Chains Of A Scraper Conveyor
App 20180186578 - LI; Wei ; et al. | 2018-07-05 |
Skip-mining type wangeviry stope branch roadway filling and coal mining method
Grant 10,012,080 - Ma , et al. July 3, 2 | 2018-07-03 |
Hydraulic Elevating Platform Having No Guide Rails And Elevating Method
App 20180170716 - Zhu; Zhencai ; et al. | 2018-06-21 |
A Lap Joint Platform Of Large-load Lifting Container
App 20180162700 - Zhu; Zhencai ; et al. | 2018-06-14 |
Lap joint platform of large-load lifting container
Grant 9,994,426 - Zhu , et al. June 12, 2 | 2018-06-12 |
Fracture Detection System And Method For Dumbbell Pin Of Scraper Conveyor
App 20180155132 - Li; Wei ; et al. | 2018-06-07 |
Solid-filling coal mining feeding and conveying monitoring system
Grant 9,988,905 - Zhang , et al. June 5, 2 | 2018-06-05 |
Shock-absorbing And Energy-collecting Roller Cage Shoe
App 20180118517 - PENG; Yuxing ; et al. | 2018-05-03 |
Method of estimating tension of chain of scraper conveyor
App 20180120180 - ZHU; Zhencai ; et al. | 2018-05-03 |
Downhole Coal Seam Pulse Detonation Wave Directional Fracturing Permeability-increasing Method
App 20180112505 - LIN; Baiquan ; et al. | 2018-04-26 |
Scraper Conveyor Chain Tensioning Device Having Sweeping Function
App 20180079598 - YANG; Shanguo ; et al. | 2018-03-22 |
Coal Dropping Impact Energy Buffer Monitoring Device And Method For Coal Mine Belt Conveying System
App 20180065811 - Chen; Xiao ; et al. | 2018-03-08 |
Video Image Denoising and Enhancing Method and Device Based On Random Spray Retinex
App 20180053287 - CHENG; Deqiang ; et al. | 2018-02-22 |
Method Of Performing Combined Drilling, Flushing, And Cutting Operations On Coal Seam Having High Gas Content And Prone To Bursts To Relieve Pressure And Increase Permeability
App 20170370156 - LIN; Boquan ; et al. | 2017-12-28 |
Fault-tolerant Control Method For Position Sensor Of Switched Reluctance Motor
App 20170324358 - CHEN; Hao ; et al. | 2017-11-09 |
A Horizontally Movable Vertical Shaft Rope Guide And Regulating Method Thereof
App 20170305722 - ZHU; Zhencai ; et al. | 2017-10-26 |
Vertical Rope Climbing Inspection Robot for Ultra-Deep Vertical Shaft Steel-Rope Guide
App 20170297589 - ZHOU; Gongbo ; et al. | 2017-10-19 |
Mechanical Rocker Arm-type Vertical Feeding Cushioning Device
App 20170283174 - YAN; HAO ; et al. | 2017-10-05 |
Three-phase Switched Reluctance Motor Torque Ripple Three-level Suppression Method
App 20170279396 - Chen; Hao ; et al. | 2017-09-28 |
Method For Efficiently Treating Spontaneous Ignition Of Remaining Coal In Large Area Goaf Of Shallow-buried Coal Bed
App 20170268338 - Qin; Botao ; et al. | 2017-09-21 |
Four-phase Switched Reluctance Motor Torque Ripple Two-level Suppression Method
App 20170272022 - Chen; Hao ; et al. | 2017-09-21 |
Method For Quantitative Evaluation Of Switched Reluctance Motor System Reliability Through Three-level Markov Model
App 20170261559 - CHEN; Hao ; et al. | 2017-09-14 |
| 