Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8147605 | Coating composition for a mould | Ragnar Tronstad | 2012-04-03 |
| 7931883 | Silicon feedstock for solar cells | Kenneth Friestad, Ragnar Tronstad, Cyrus Zahedi, Christian Dethloff | 2011-04-26 |
| 7918916 | Calcium-silicate based slag for treatment of molten steel | Gabriella Maria Tranell, Ragnar Tronstad | 2011-04-05 |
| 7879130 | Calcium-silicate based slag for treatment of molten silicon | Gabriella Maria Tranell, Ragnar Tronstrad | 2011-02-01 |
| 7854784 | Calcium-silicate based slag for treatment of molten silicon | Gabriella Maria Tranell, Ragnar Tronstad | 2010-12-21 |
| 7381392 | Silicon feedstock for solar cells | Kenneth Friestad, Ragnar Tronstad, Cyrus Zahedi, Christian Dethloff | 2008-06-03 |