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Qi An

C( China University Of Geosciences (Beijing): 2 patents #21 of 135Top 20%
Overall (All Time): #1,720,480 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12337299 Use of natural attapulgite as natural nano mineral enzyme Yihe Zhang, Minmin Liang, Feng Feng, Peixia Wang, Wangshu Tong 2025-06-24
11794462 rGO-PEI/PVDF pyroelectric thin film and its preparation method Yihe Zhang, Haitao Li, Wangshu Tong 2023-10-24