Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8726459 | Vacuum cleaner | Chang Ho Yun, Gun Ho Ha, Jin Young Kim, Man Tae Hwang, Hae Seock Yang +5 more | 2014-05-20 |
| 7992253 | Vacuum cleaner | Chang Ho Yun, Gun Ho Ha, Jin Young Kim, Man Tae Hwang, Hae Seock Yang +5 more | 2011-08-09 |
| 7958598 | Vacuum cleaner | Chang Ho Yun, Gun Ho Ha, Jin Young Kim, Man Tae Hwang, Hae Seock Yang +6 more | 2011-06-14 |