Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10433071 | Microphone with hydrophobic ingress protection | Sung Bok Lee | 2019-10-01 |
| 10178478 | Acoustic apparatus with diaphragm supported at a discrete number of locations | Sung Bok Lee | 2019-01-08 |