Dazhen Tang

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BEIJING, CN

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Patents Grantslast 30 patents

Information Patent Grant
Adjustable gas detection device for coal bed
- Patent number 11,497,361
- Issue date Nov 15, 2022
- Shu Tao
- G01 - MEASURING TESTING
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 Applicationslast 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
Information Patent Application
ADJUSTABLE GAS DETECTION DEVICE FOR COAL BED
- Publication number 20200315413
- Publication date Oct 8, 2020
- China University of Geosciences (Beijing)
- Shu Tao
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...