Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6153158 | Method and apparatus for treating gaseous effluents from waste treatment systems | Stephan Kujawa | 2000-11-28 |
| 6015963 | Plasma arc furnace with improved replaceable electrodes | Jason McClafferty, Donald A. Orne | 2000-01-18 |
| 5877394 | Method for treating waste containing stainless steel | Stephan Kujawa, Daniel M. Battleson, Edward L. Rademacher, Jr., Patrick V. Cashell, Krag D. Filius +1 more | 1999-03-02 |
| 5731564 | Method of operating a centrifugal plasma arc furnace | Stephan Kujawa, Daniel M. Battleson, Edward L. Rademacher, Jr., Patrick V. Cashell, Krag D. Filius +1 more | 1998-03-24 |