Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12180772 | Door closer | Feifei Zhang, Jing Zhang | 2024-12-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12180772 | Door closer | Feifei Zhang, Jing Zhang | 2024-12-31 |