Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9782638 | Ball feeding device | — | 2017-10-10 |
| 9782658 | Ball pitching device | — | 2017-10-10 |
| 9668626 | Nozzle for a vacuum cleaner and vacuum cleaner | Jinwoo Lee, Seogyong Kim | 2017-06-06 |
| 9655487 | Vacuum cleaner and nozzle for a vacuum cleaner | Jinwoo Lee, Seogyong Kim | 2017-05-23 |