Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6185242 | Integral side wall and tap hole cover for an eccentric bottom tap (EBT) electric furnace | Mark Thomas Arthur, Gordon R. Roberts | 2001-02-06 |
| 6092742 | Nozzle for spraying liquids | Mark Thomas Arthur | 2000-07-25 |
| 5999558 | Integral spray cooled furnace roof and fume elbow | Mark Thomas Arthur | 1999-12-07 |
| 5648981 | Cooling system for a two component furnace roof | Mark Thomas Arthur | 1997-07-15 |
| 5561685 | Modular spray cooled side-wall for electric arc furnaces | David Arthur Lehr, Gordon R. Roberts, William H. Burwell, Mark Thomas Arthur | 1996-10-01 |
| 5444734 | Device for lifting and moving the roof of a spray cooled furnace | Mark Thomas Arthur | 1995-08-22 |
| 5115184 | Cooling system for furnace roof having a removable delta | Mark Thomas Arthur | 1992-05-19 |
| 4849987 | Combination left and right handed furnace roof | Arthur M. Siffer | 1989-07-18 |