Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4512798 | Method for producing lead from sulphidic and oxidic and/or sulphatic lead raw materials | Malkolm S. Lundstrom, Martin Hedlund, Kurt J. A. Buren | 1985-04-23 |
| 4508565 | Method for producing lead from oxidic lead raw materials which contain sulphur | Malkolm S. Lundstrom, Martin Hedlund, Kurt J. A. Buren | 1985-04-02 |
| 4415360 | Method for working-up metal-containing waste products | Malkolm S. Lundstrom | 1983-11-15 |