Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6904955 | Method and apparatus for alternating pouring from common hearth in plasma furnace | David O. Warren | 2005-06-14 |
| 6893607 | Elevated discharge gas lift bubble pump and furnace for use therewith | Larry D. Areaux | 2005-05-17 |
| 6868896 | Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes | David O. Warren | 2005-03-22 |