Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5626661 | Luster pigments based on multiply coated plateletlike silicatic substrates | Raimund Schmid, Norbert Mronga, Harald Ochmann | 1997-05-06 |
| 5560961 | Process of making metal-coated melamine/formaldehyde resin fibers | Bernd Ziegler, Erwin Hahn, Georg Mermigidis | 1996-10-01 |
| 5496674 | Particles suitable as carriers for electrophotography | Norbert Mronga, Erwin Czech | 1996-03-05 |