Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9108242 | Grain refiners for steel-manufacturing methods and use | Oystein Grong, Gabriella Maria Tranell, Leiv Olav Kolbeinsen | 2015-08-18 |
| 8486175 | Grain refiners for steel-manufacturing methods and use | Øystein Grong, Gabriella Maria Tranell, Leiv Olav Kolbeinsen | 2013-07-16 |