Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6137703 | Clamped bidirectional power switches | Alexander L. Julian | 2000-10-24 |
| 6060719 | Fail safe gas furnace optical flame sensor using a transconductance amplifier and low photodiode current | Stephen K. Phelps, Martin F. Zabielski | 2000-05-09 |
| 5541484 | BLDCM phase current reconstruction circuit | — | 1996-07-30 |
| 5367234 | Control system for sensorless brushless DC motor | — | 1994-11-22 |
| 4664217 | Electric shift actuator for vehicle transfer case | David W. Welch, Carl G. Czarnecki | 1987-05-12 |