Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4358312 | Desulfurizing agent and process for its manufacture | Willi Portz, Georg Strauss, Hans-Martin Delhey | 1982-11-09 |
| 4323392 | Agent for desulfurizing crude iron and steel melts, and process for making it | Willi Portz, Georg Strauss | 1982-04-06 |
| 4318822 | Production of agent for desulfurizing crude iron and steel melts | Willi Portz, Georg Strauss | 1982-03-09 |