Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4683721 | Twin-crank type heat engine | Myung Chul Shin, Young-Hoon Chung, Kwang-Koo Jee | 1987-08-04 |
CK
Chil-sung KIM
Overall (All Time): #3,979,370 of 4,157,543Top 100%
1
Patents All Time