Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10354509 | Intelligent earplug system | Daniel K. Lee, Chesong Lee | 2019-07-16 |
| 10027787 | Intelligent earplug system | Daniel K. Lee, Chesong Lee | 2018-07-17 |
| 9906636 | Intelligent earplug system | Daniel K. Lee, Chesong Lee | 2018-02-27 |
| 9799188 | Intelligent earplug system | Daniel K. Lee, Chesong Lee | 2017-10-24 |