YZ

Yongjian Zhang

Overall (2023): #91,745 of 537,848Top 20%
2
Patents 2023

Issued Patents 2023

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11849896 Cleaning device for floor mopping machine Tao Jiang, Xuan Li, Jing Li, Hao Chen, Hongwei Liu +1 more 2023-12-26
11633080 Lift-type cleaning device for floor washer Jing Li, Hao Chen, Hongwei Liu, Bin Wu 2023-04-25