Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7500995 | Method for production of nitrate-containing products from undercooling melts | Jan Birger Isaksen, Torstein Obrestad | 2009-03-10 |
| 6610267 | Method for manufacturing a calcium nitrate melt and product thereof | Torstein Obrestad | 2003-08-26 |
| 6176892 | Method for making nitrogen-potassium fertilizer containing calcium nitrate and products thereof | Torstein Obrestad, Jan Birger Isaksen | 2001-01-23 |