Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6143194 | Magnetic iron oxide, process for its production and the use thereof | Ulrich Meisen | 2000-11-07 |
| 6063180 | Use of free-flowing, magnetic iron oxide containing granules with 50 to 73 wt. % iron content | Ulrich Meisen | 2000-05-16 |