Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11322974 | Ferroresonant transformer systems and methods | Thanh Quoc Le, James Richardson | 2022-05-03 |
| 10819144 | Ferroresonant transformer for use in uninterruptible power supplies | Thanh Quoc Le, James Richardson | 2020-10-27 |
| 9633781 | Ferroresonant transformer for use in uninterruptible power supplies | Thanh Quoc Le, James Richardson | 2017-04-25 |
| 8575779 | Ferroresonant transformer for use in uninterruptible power supplies | Thanh Quoc Le, James Richardson | 2013-11-05 |