YZ

Yonghua Zheng

Overall (2024): #204,209 of 561,600Top 40%
1
Patents 2024

Issued Patents 2024

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12138498 Multi-mode starting dry powder fire extinguishing ball Cuifang Chen, Yong Li, Bin Huang 2024-11-12