Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9360232 | Fluidized bed heat exchange apparatus for recovering heat of flue gas for producing high temperature water | Sang-Il Park, Chang Bok Ko | 2016-06-07 |
| 5699852 | Heat exchanger having a resin-coated pipe | Young Jae Park, San-IL Park, Young Jin Ha, Ki Ho Park, Chang-bog Ko +1 more | 1997-12-23 |