Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5942296 | Optical fiber preform | Seung-Hun Oh, Sun Woong Kang | 1999-08-24 |
| 5702497 | Method of producing an optical fiber preform from a plurality of tubes having different thermal conductivities | Seung-Hun Oh, Sun Woong Kang | 1997-12-30 |