Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4418014 | Process for the manufacture of sulphur which can be recycled | — | 1983-11-29 |
| 4309178 | Process for isolating sulphur dyestuffs from aqueous crude melts containing sodium polysulphide | Artur Meyer, Wolf Weidemuller | 1982-01-05 |
| 4309401 | Process for the manufacture of sulphur which can be recycled | — | 1982-01-05 |