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BEIJING, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Fracturing device for extraction of coalbed methane in low permeabi...
Patent number
11,242,736
Issue date
Feb 8, 2022
China University of Geosciences (Beijing)
Shu Tao
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling device at extracting opening for extraction of coalbed met...
Patent number
11,203,925
Issue date
Dec 21, 2021
Shu Tao
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
DRILLING DEVICE AT EXTRACTING OPENING FOR EXTRACTION OF COALBED MET...
Publication number
20210172312
Publication date
Jun 10, 2021
China University of Geosciences (Beijing)
Shu Tao
E21 - EARTH DRILLING MINING
Information
Patent Application
FRACTURING DEVICE FOR EXTRACTION OF COALBED METHANE IN LOW PERMEABI...
Publication number
20210172304
Publication date
Jun 10, 2021
China University of Geosciences (Beijing)
Shu Tao
E21 - EARTH DRILLING MINING