Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4347228 | Process for defluorination of phosphoric acid | Gerhard Koch | 1982-08-31 |
| 4343780 | Process for the separation of solids from phosphoric acid | Egbert Hoffmann, Wolfgang Epper | 1982-08-10 |