GJ

Guobin JIA

Overall (2022): #157,440 of 548,613Top 30%
2
Patents 2022

Issued Patents 2022

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11304444 Mechanical vaporizer 2022-04-19
11304452 Direct heating vaporizer 2022-04-19