Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4670177 | Preparation of ferromagnetic chromium dioxide | Manfred Ohlinger, Norbert Mueller, Peter Rudolf | 1987-06-02 |
| 4340494 | Process for the manufacture of ferromagnetic chromium dioxide | Manfred Ohlinger, Guenter Vaeth, Norbert Mueller | 1982-07-20 |