Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8418499 | Natural gas liquefaction system with turbine expander and liquefaction method thereof | Gyu Wan Hwang, Seung Whan Baek | 2013-04-16 |
| 7775239 | Buffered rotary valve | Je Heon Jeong, Gyu Wan Hwang | 2010-08-17 |