GF

Guofeng Feng

Overall (2022): #81,003 of 548,613Top 15%
3
Patents 2022

Issued Patents 2022

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D971348 Mask 2022-11-29
D968534 Mask 2022-11-01
11435970 Electronic face mask control system 2022-09-06