Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7943071 | Polyethylene terephthalate filament having high tenacity for industrial use | Kyu-Chan Han, Dong Seok SHIM | 2011-05-17 |
| 7323244 | Low and weakly-interlaced polyester multifilament yarn and method of producing the same | Dong Seok SHIM | 2008-01-29 |