Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4659555 | Process for the preparation of basic copper carbonate | Werner Gottfried, Ernst Mack | 1987-04-21 |
| 4282190 | Process for the manufacture of iron and aluminum-free zinc chloride solutions | Wolfgang Muller | 1981-08-04 |
| 4242127 | Process for treating hydroxide sludge residues containing nonferrous metals | Wolfgang Muller | 1980-12-30 |