Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9505616 | High-purity gas production apparatus and production method therefor | Ki Bong Lee, Chan-Hyun Lee | 2016-11-29 |
| 9416007 | High-purity gas production apparatus and production method therefor | Ki Bong Lee, Chan-Hyun Lee | 2016-08-16 |