QM

Qihua Ma

ST Shandong University Of Science And Technology: 1 patents #11 of 72Top 20%
📍 Qingdao, CN: #156 of 542 inventorsTop 30%
Overall (2023): #291,114 of 537,848Top 55%
1
Patents 2023

Issued Patents 2023

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11746654 Kind of no-pillar and gob-side entry retaining mining and construction method without the mining area division Zhongcheng Qin, Kegong Fan, Jianguo Ning, Zhongping Guo, Zhijie WEN 2023-09-05