CT

Chia-Chien Tsai

Overall (All Time): #1,833,594 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11234543 Drinking straw device 2022-02-01
7461616 Environmental friendly animal excrement collector 2008-12-09