Qinghua CHEN

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Hefei, Anhui, CN

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Patents Grantslast 30 patents

Information Patent Grant
Gas-liquid spray dust settlement system for fully mechanized mining...
- Patent number 11,873,719
- Issue date Jan 16, 2024
- ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Liang Yuan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sprayer for settling dust of coal mine
- Patent number 11,492,906
- Issue date Nov 8, 2022
- ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Liang Yuan
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
GAS-LIQUID SPRAY DUST SETTLEMENT SYSTEM FOR FULLY MECHANIZED MINING...
- Publication number 20220316336
- Publication date Oct 6, 2022
- ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Liang YUAN
- E21 - EARTH DRILLING MINING
Information Patent Application
SPRAYER FOR SETTLING DUST OF COAL MINE
- Publication number 20220205360
- Publication date Jun 30, 2022
- ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Liang YUAN
- E21 - EARTH DRILLING MINING