Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6761747 | Dispersion containing pyrogenically manufactured abrasive particles with superparamagnetic domains | Heiko Gottfried, Berthold Trageser, Guido Zimmermann, Stefan Heberer, Heike Muehlenweg | 2004-07-13 |
| 6746767 | Superparamagnetic oxidic particles, processes for their production and their use | Heiko Gottfried, Christian Janzen, Paul Roth, Berthold Trageser, Guido Zimmermann | 2004-06-08 |