Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8999532 | Coating layer for cutting tools | Seong-woo Cho, Han-sung Kim, Dong Youl Lee, Young Ho Seo, Seoun Young Ahn +1 more | 2015-04-07 |
| 8616469 | Water-saving shower head with extension utilizing air-pressure | — | 2013-12-31 |