Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10771891 | Method for manufacturing air pulse generating element | David Hong, Chun-I Chang | 2020-09-08 |
| 10609474 | Air pulse generating element and manufacturing method thereof | Jemm Yue Liang, Wen-Chien Chen, Chun-I Chang | 2020-03-31 |