Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6912354 | Concentric electrode DC arc systems and their use in processing waste materials | J. Kenneth Wittle, Richard A. Hamilton | 2005-06-28 |
| 6466605 | Concentric electrode DC arc system and their use in processing waste materials | J. Kenneth Wittle, Richard A. Hamilton | 2002-10-15 |
| 6421500 | Concentric electrode DC arc systems and their use in processing waste materials | J. Kenneth Wittle, Richard A. Hamilton | 2002-07-16 |
| 5673285 | Concentric electrode DC arc systems and their use in processing waste materials | J. Kenneth Wittle, Richard A. Hamilton | 1997-09-30 |