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Ruiji Yi

Overall (2021): #279,021 of 548,734Top 55%
1
Patents 2021

Issued Patents 2021

Patent #TitleCo-InventorsDate
11198984 Underwater repair system for cavity region of concrete panel rock-fill dam panel Yingli Wu, Sheng-Yao Yang, Wanli GUO, Denghua Li, Limin Xiao +22 more 2021-12-14