Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11608641 | Energy-efficient assistive stairs | Cheng-Yun Karen Liu, Sehoon Ha, Yun Seong Song | 2023-03-21 |
| 10975574 | Energy-efficient assistive stairs | Cheng-Yun Karen Liu, Sehoon Ha, Yun Seong Song | 2021-04-13 |