Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346066 | Purification of wet-process phosphoric acid | Reinhard Gradl, Klaus Schrodter, Wolfgang Scheibitz | 1982-08-24 |
| 4321245 | Process for the purification of wet-processed phosphoric acid | Reinhard Gradl, Klaus Schrodter | 1982-03-23 |
| 4313826 | Liquid-liquid extraction apparatus | Reinhard Gradl, Klaus Schrodter | 1982-02-02 |