Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10358853 | Friction hinge | — | 2019-07-23 |
| 10228732 | Hinge with variable sliding friction | Liang Zhang, Bonggwon Ji | 2019-03-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10358853 | Friction hinge | — | 2019-07-23 |
| 10228732 | Hinge with variable sliding friction | Liang Zhang, Bonggwon Ji | 2019-03-12 |