YZ

Yongfeng Zhang

BO BOE: 1 patents #1,020 of 2,247Top 50%
📍 Hunan, CA: #5 of 12 inventorsTop 45%
Overall (2018): #180,139 of 503,207Top 40%
1
Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10066289 Evaporation crucible and evaporation device — 2018-09-04