Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5000762 | Method for separating dioxins from gases | Erik E. Solbu | 1991-03-19 |
| 4584017 | Method for producing metallic lead by direct lead-smelting | Stig A. Petersson | 1986-04-22 |
| 4515631 | Method for producing blister copper | Stig A. Petersson | 1985-05-07 |