Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D875875 | Sight device | Pyeong An Kim | 2020-02-18 |
| 9803884 | Heat exchanger, heat recovery ventilator including the same, and method for defrosting and checking operations thereof | — | 2017-10-31 |