Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9197961 | Portable electronic device with internal speaker | Chia-Ming Chang, Chia-Yan Hsu | 2015-11-24 |
| 6392882 | Holder | Ching-Shih Chen, Sheng-Ming Liu | 2002-05-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9197961 | Portable electronic device with internal speaker | Chia-Ming Chang, Chia-Yan Hsu | 2015-11-24 |
| 6392882 | Holder | Ching-Shih Chen, Sheng-Ming Liu | 2002-05-21 |