Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5810930 | Photo-chemical vapor deposition apparatus having exchange apparatus of optical window and method of exchanging optical window therewith | In Ho Hwang, Koeng Su Lim, Chang-Hyun Lee | 1998-09-22 |