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Kai SUN
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Jiangsu, CN
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last 30 patents
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Patent Grant
Internally injected replacement support room-type coal pillar recov...
Patent number
11,313,226
Issue date
Apr 26, 2022
China University of Mining and Technology
Nan Zhou
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
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Patent Application
INTERNALLY INJECTED REPLACEMENT SUPPORT ROOM-TYPE COAL PILLAR RECOV...
Publication number
20200378255
Publication date
Dec 3, 2020
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Nan ZHOU
E21 - EARTH DRILLING MINING
Information
Patent Application
MINE EXPLOITATION, SEPARATION, FILLING AND TREATMENT EXPLOITATION M...
Publication number
20200378256
Publication date
Dec 3, 2020
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Jixiong ZHANG
E21 - EARTH DRILLING MINING