Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10405720 | Vacuum cleaner and gravity compensation apparatus therefor | Sung-Jin Park, Dong Hun Lee, Shin Kim | 2019-09-10 |
| 10362917 | Cleaning robot | Jeong Ki Yoo, Sung-Jin Park, Jun-Young Lee, Dong Min Shin, Dong Hun Lee +3 more | 2019-07-30 |
| 10254756 | Cleaning robot and method for controlling the same | Dong Hun Lee | 2019-04-09 |