Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9005313 | Device for preparing bio-oil, system for preparing bio-oil and method for preparing bio-oil using the same | Hang-Seok Choi, Yeon-Seok Choi, Seock Joon Kim, So-Young Han | 2015-04-14 |
| 5255399 | Far infrared rays sauna bath assembly | — | 1993-10-26 |