Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11930343 | Sound producing unit, sound producing module, and electronic terminal | Chengfei Zhang, Chunfa Liu | 2024-03-12 |
| 11310603 | Sound producing unit, sound producing module, and electronic terminal | Chengfei Zhang, Chunfa Liu | 2022-04-19 |