Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7186395 | Iron oxides with a higher degree of refining | Christian Walsdorff, Reinhard Korner, Klaus Harth, Gerald Vorberg, Wilhelm Ruppel | 2007-03-06 | $873,000 |