HQ

Hangjian Qiu

Overall (2021): #439,186 of 548,734Top 85%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11186208 Child safety seat and its manufacturing process Jianhong Qian, Jianhong Yuan, Qianglong Fan, Mingjun Liu, Chaoyang SHEN 2021-11-30