Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8268280 | Method for production of calcium compounds | Einar Andersen | 2012-09-18 |
| 7232544 | Apparatus for continuous slag treatment of silicon | Kenneth Friestad, Pal Runde | 2007-06-19 |