Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12152353 | Energy-saving and gas-efficient pneumatic barrier gate device | Chia-Hao Yeh, Chia-Chi Yeh, Hsing-Chi Yeh, Yuan-Cheng Yeh | 2024-11-26 |
| 12146278 | Energy and air saving pneumatic barrier device | Hsing-Chi Yeh | 2024-11-19 |
| 11259585 | Hat with flexible panels | Hsing-Chi Yeh | 2022-03-01 |
| 5626387 | Cushion with cooling stubs | — | 1997-05-06 |