Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9928675 | Digital doorlock system | Chang Hoon Shin | 2018-03-27 |
| 9198550 | Window cleaning apparatus and method of controlling the same | Man Hyun Ryu, Dong Kyu Kim | 2015-12-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9928675 | Digital doorlock system | Chang Hoon Shin | 2018-03-27 |
| 9198550 | Window cleaning apparatus and method of controlling the same | Man Hyun Ryu, Dong Kyu Kim | 2015-12-01 |