Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369169 | Modified polystyrene spherical, resin and process for decontaminating waste water by using the same | Sun-Jong Ryoo | 2002-04-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369169 | Modified polystyrene spherical, resin and process for decontaminating waste water by using the same | Sun-Jong Ryoo | 2002-04-09 |