Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315773 | Desulfurization mixture and process for desulfurizing pig iron | Alfred Freissmuth, Werner Gmohling | 1982-02-16 |
| 4309206 | Process for the production of odorless prilled urea-dicyandiamide fertilizers | Horst Michaud, Josef Seeholzer | 1982-01-05 |