Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10001162 | Laborsaving rotation shaft device | — | 2018-06-19 |
| 9879715 | Rotation shaft device | Wei-Chen Kao | 2018-01-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10001162 | Laborsaving rotation shaft device | — | 2018-06-19 |
| 9879715 | Rotation shaft device | Wei-Chen Kao | 2018-01-30 |