Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10597924 | Silent spring hinge | Nengjun Hu | 2020-03-24 |
| 10501976 | Gear structure spring hinge | Nengjun Hu | 2019-12-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10597924 | Silent spring hinge | Nengjun Hu | 2020-03-24 |
| 10501976 | Gear structure spring hinge | Nengjun Hu | 2019-12-10 |