Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9160029 | Secondary battery including a can having first and second stepped portions having different depths | — | 2015-10-13 |
| 8852795 | Secondary battery | — | 2014-10-07 |
| 8652681 | Secondary battery having a stepped can and an insulation case with at least one projection | — | 2014-02-18 |
| 8288026 | Secondary battery | Sangwoo Lee | 2012-10-16 |
| 8263240 | Secondary battery having a gasket with coupling extensions | Bumkuk Choi | 2012-09-11 |
| 8202648 | Prismatic lithium ion battery | Sangwoo Lee | 2012-06-19 |
| 8153289 | Secondary battery | Sangwoo Lee | 2012-04-10 |
| 8124271 | Secondary battery | — | 2012-02-28 |
| 8053099 | Secondary battery | Sangwoo Lee | 2011-11-08 |
| 7981542 | Rechargeable battery | — | 2011-07-19 |
| 7960055 | Secondary battery | — | 2011-06-14 |
| 7427454 | Secondary battery | — | 2008-09-23 |