Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5772728 | Method for upgrading of silicon-containing residues obtained after leaching of copper-containing residues from chlorosilane synthesis | Roald Gundersen, Ragnhild Jensen | 1998-06-30 |
| 5188658 | Method for recovering zinc from zinc-containing waste materials | Jan A. Aune, Thor Pedersen | 1993-02-23 |
| 5103072 | Submersible plasma torch | Per Poppe | 1992-04-07 |