Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10119441 | Waste air exhausting device having functionality to abate noise and modulate noise frequency | Cheng-Yuan Chang | 2018-11-06 |
| 9866932 | Electronic helmet and method thereof for cancelling noises | Cheng-Yuan Chang | 2018-01-09 |
| 9858915 | Apparatus, system and method for noise cancellation and communication for incubators and related devices | Lichuan Liu | 2018-01-02 |