Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897518 | Method of monitoring induction heating cycle | George M. Mucha, George D. Pfaffmann, Richard H. McKelvey | 1990-01-30 |
| 4816633 | Method of monitoring induction heating cycle | George M. Mucha, George D. Pfaffmann, Richard H. McKelvey | 1989-03-28 |
| 4638418 | Power inverter | — | 1987-01-20 |