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E21C41/04

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EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C41/00Methods of underground or surface mining Lay-outs therefor

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E21C41/04for hard coal

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Patents Grantslast 30 patents

Information Patent Grant
Launch vehicle with a tilt deck for highwall mining
- Patent number 9,822,640
- Issue date Nov 21, 2017
- UGM ADDCAR Systems, LLC
- John A. Baird
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Launch vehicle with a multi-dip deck for highwall mining
- Patent number 9,731,903
- Issue date Aug 15, 2017
- UGM ADDCAR Systems, LLC
- Paul Hartcher
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Inclined layered solid-filling mining method in ultrathick coal layer
- Patent number 9,494,037
- Issue date Nov 15, 2016
- China University of Mining and Technology
- Jixiong Zhang
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
FOUR-DOUBLE WORKING METHOD FOR RISK ASSESSMENT AND PREDICTION OF WA...
- Publication number 20200232320
- Publication date Jul 23, 2020
- Inner Mongolia Shanghaimiao Mining Co. Ltd.
- Yuguang LV
- E21 - EARTH DRILLING MINING
Information Patent Application
PHYSICAL SIMULATION TEST METHOD FOR DETECTING POSITION OF PONDING G...
- Publication number 20200102825
- Publication date Apr 2, 2020
- Taiyuan University of Technology
- Guorui FENG
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INCLINED LAYERED SOLID-FILLING MINING METHOD IN ULTRATHICK COAL LAYER
- Publication number 20160102553
- Publication date Apr 14, 2016
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Jixiong Zhang
- E21 - EARTH DRILLING MINING
Information Patent Application
LAUNCH VEHICLE WITH A MULTI-DIP DECK FOR HIGHWALL MINING
- Publication number 20160096688
- Publication date Apr 7, 2016
- UGM ADDCAR SYSTEMS, LLC
- Paul Hartcher
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
LAUNCH VEHICLE WITH A TILT DECK FOR HIGHWALL MINING
- Publication number 20160090838
- Publication date Mar 31, 2016
- UGM ADDCAR SYSTEMS, LLC
- John A. Baird
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL