Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11040352 | System for melting aluminum and recycling black dross | Yong Kook Shin, Soo Hyun Yun | 2021-06-22 |
| 6852807 | Resin compositions having biodegradation and hydrolysis properties | Jung-Hwan Choi | 2005-02-08 |
| 4287737 | Lock using non-rotating perforated plate key | — | 1981-09-08 |