Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10763515 | Portable water-activated power generating device | Sung-Nien Kao | 2020-09-01 |
| 10665869 | Water-activated power generating device with vents | Sung-Nien Kao | 2020-05-26 |
| 10541428 | Water-activated power generating device | Sung-Nien Kao | 2020-01-21 |
| 10135075 | Water-activated power bank structure | Sung-Nien Kao | 2018-11-20 |