QC

Qing Chang

📍 Shanghai, IN: #6 of 14 inventorsTop 45%
Overall (2021): #298,072 of 548,734Top 55%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11189117 Method and system for controlling a smart lock Hongwei Qiao, Jing Zhang 2021-11-30