Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10033196 | Converting alternating current power to direct current power | Sangsun Kim, Cornelius B. O'Sullivan | 2018-07-24 |
| 9479077 | Three-phase power supply system | Sangsun Kim | 2016-10-25 |