Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5004888 | Plasma torch with extended life electrodes | Charles B. Wolf, Shyam V. Dighe, Paul Edward Martin, William J. Melilli | 1991-04-02 |
| 4998486 | Process and apparatus for treatment of excavated landfill material in a plasma fired cupola | Shyam V. Dighe, Robert J. Steffen, David Michael Rohaus | 1991-03-12 |
| 4853033 | Method of desulfurizing molten metal in a plasma fired cupola | Shyam V. Dighe | 1989-08-01 |
| 4582004 | Electric arc heater process and apparatus for the decomposition of hazardous materials | Maurice G. Fey, Joseph W. George, Thomas N. Meyer, William Henry Reed | 1986-04-15 |