Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8385570 | Electret transducer with solar power and amplifier circuitry | Dar-Ming Chiang, Shu-Ru Lin | 2013-02-26 |
| 8300860 | Electret transducer with solar power | Dar-Ming Chiang, Shu-Ru Lin | 2012-10-30 |