GF

Guofeng Feng

Overall (All Time): #1,146,798 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D971348 Mask 2022-11-29
D968534 Mask 2022-11-01
11435970 Electronic face mask control system 2022-09-06
D918287 LED glasses 2021-05-04