Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9023513 | Rechargeable secondary battery having improved safety against puncture and collapse | Donghyun Lee, Jeongwon Oh, Yoontai Kwak | 2015-05-05 |
| 8758927 | Secondary battery | Donghyun Lee, Jeomsoo Kim | 2014-06-24 |
| 8039147 | Rechargeable secondary battery having improved safety against puncture and collapse | Donghyun Lee, Jeongwon Oh, Yoontai Kwak | 2011-10-18 |