Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9808134 | Dust collector for vacuum cleaner | Kietak Hyun, Hyukjin Ahn | 2017-11-07 |
| 9763550 | Dust collector for vacuum cleaner | Kietak Hyun, Hyukjin Ahn | 2017-09-19 |
| 9668629 | Vacuum cleaner | Kietak Hyun, Goondong Park | 2017-06-06 |