Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4638245 | Detection of ground faults in ungrounded DC power supply systems | Ohjhong Yoon | 1987-01-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4638245 | Detection of ground faults in ungrounded DC power supply systems | Ohjhong Yoon | 1987-01-20 |