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CT China University Of Mining And Technology: 1 patents #288 of 815Top 40%
Overall (All Time): #2,516,139 of 4,157,543Top 65%
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Patent #TitleCo-InventorsDate
12044125 Isolated overburden grouting filling method for coal gangue underground emission reduction Jian Li, Jialin Xu 2024-07-23