Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4939399 | Series-wound electrical rotating field machine having integrated radial loop coils and drum coils | Sang Soo Oh | 1990-07-03 |
| 4692647 | Rotor construction in an induction motor for eliminating rotor reaction | Sang Soo Oh | 1987-09-08 |