Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686225 | Method of manufacturing a multilayer information disc | — | 1997-11-11 |
KC
Kwang-hyuk Chang
Overall (1997): #115,792 of 185,788Top 65%
1
Patents 1997