Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641866 | Process for manufacturing granular coated sodium percarbonate for detergent | Sang Hwa Lee, Yong-Il Kim, Sun Ki Shur | 2003-11-04 |
| 6465408 | Granular coated sodium percarbonate for detergent | Sang Hwa Lee, Yong-Il Kim, Sun Ki Shur | 2002-10-15 |
| 6218352 | Composite composition comprising sodium percarbonate with improved solubility | Sang Hwa Lee, Chong Yun Kwag, Han Seog Cho | 2001-04-17 |
| 5851420 | Process for manufacturing granular sodium percarbonate | Sang Ryul Kim, Chong Yun Kwag, Hwan Kee Heo | 1998-12-22 |