Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8021522 | Reverse piezoelectric method for production of silane | Arne Kjekshus, Tore Wessel-Berg | 2011-09-20 |
| 4670228 | Process for the recovery of valuable metals, particularly rare earths and similar metals, from a carbonate-containing raw material | — | 1987-06-02 |