Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8728385 | Sidewall and bottom electrode arrangement for electrical smelting reactors and method for feeding such electrodes | Olaf Trygve Vegge, Harald Haaland, Jarle Erland Herstad, Constantin Jorgensen | 2014-05-20 |
| 7169207 | Device and method for treatment of gases | Olaf Trygve Vegge | 2007-01-30 |
| 6980580 | Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace | Jan A. Aune, Kai Johansen | 2005-12-27 |