Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10843897 | Emergency elevator | — | 2020-11-24 |
| 10794090 | Input device for door lock | Eun-Min Park, Sang-Woo Jung | 2020-10-06 |
| 10727682 | Emergency charging device and method for door lock | Eun-Min Park, Sang-Woo Jung | 2020-07-28 |