YT

Yu-Zen Tseng

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #2,005,878 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9333980 Assistance device for climbing stairs Pao-Pao Liu, Li-Heng Chang, Chin-Chia Liu 2016-05-10
9192213 Adjustable cane with memory function Ching-Ming Lin, Szu-Yuan Huang, Yu-Ju Chen 2015-11-24