Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6635198 | Method for producing elongated carbon bodies | Olaf Trygve Vegge | 2003-10-21 |
| 6157667 | Method and calcining furnace for electric calcining of carbonaceous material | Johan Arnold Johansen | 2000-12-05 |
| 4678434 | Baking furnace for electrodes | Erik Dahl, Olaf Trygve Vegge | 1987-07-07 |