YC

Yizhen Chang

Overall (2021): #203,010 of 548,734Top 40%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11155376 Cigarette filter rod boxing machine Haiping Zhang, Jianfang Wang, Hui Liang, Xudong Zeng, Shuhua Zhao +2 more 2021-10-26