Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D952888 | Heart-shaped vacuum massage device | — | 2022-05-24 |
| D952889 | Star-shaped vacuum massage device | — | 2022-05-24 |
| 11300094 | High efficiency compressed-air power generation system | Hung-Sen Chang, Yi-Hsuan Tsai | 2022-04-12 |