Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5534160 | Method for the re-treatment of residue generated from the removal of fluorine dissolved in waste water | Young-Ho Hong, Jae Hong Roh | 1996-07-09 |
| 5277784 | Manufacturing method for a vacuum fluorescent display | — | 1994-01-11 |