Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8383262 | Stacking-type secondary battery providing two or more operation voltages | Hey Woong Park, Ra Young Hwang, Jisang Yu, John E. Namgoong | 2013-02-26 |
| 8119274 | Stacking-typed secondary battery providing two or more operation voltages | Hey Woong Park, Ra Young Hwang, Jisang Yu, John E. Namgoong | 2012-02-21 |