Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8966757 | Plastic heat exchanger and method of manufacturing the same | Eon Seok Lee, Du-soon Choi, Sang Hoon Han | 2015-03-03 |
HR
Ho-geun Ryu
Overall (All Time): #3,040,668 of 4,157,543Top 75%
1
Patents All Time