Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6603795 | Power control system for AC electric arc furnace | Thomas Lai Wai Ma, Mohammad Sedighy, Brian K. Perkins, Janos Rajda | 2003-08-05 |
| 5471020 | Modal silencer | John T. Kelsall | 1995-11-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6603795 | Power control system for AC electric arc furnace | Thomas Lai Wai Ma, Mohammad Sedighy, Brian K. Perkins, Janos Rajda | 2003-08-05 |
| 5471020 | Modal silencer | John T. Kelsall | 1995-11-28 |