Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9246155 | Rechargeable secondary battery having improved safety against puncture and collapse | Yongsam Kim, Yoontai Kwak | 2016-01-26 |
| 8586236 | Rechargeable battery | Yoontai Kwak, Yongsam Kim | 2013-11-19 |