Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10322977 | Animal hair waste treating apparatus and method | Na Hyeon Ryu, Yeon Seok Ryu, Youn-Woo Lee | 2019-06-18 |
| 9101909 | Liquid combustion catalyst composition comprising an ionized metal compound | Na Hyeon Ryu, Yeon Seok Ryu, Hwan Woo Ryu | 2015-08-11 |
| 7803200 | Fuel additive composition | — | 2010-09-28 |