QL

Qingjun Li

📍 Fujian, CN: #833 of 1,685 inventorsTop 50%
Overall (All Time): #2,821,721 of 4,157,543Top 70%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10809605 Optical projection screen and management system thereof Zhanhan Chen 2020-10-20