Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5194757 | Uninterruptible power supply | — | 1993-03-16 |
| 4645940 | Interrupt-free, unregulated power supply | — | 1987-02-24 |
| 4525633 | Wind turbine maximum power tracking device | Richard J. Herbermann | 1985-06-25 |