Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6235368 | Magnetic recording medium having a high recording density and its production | Hans-Bertram Wiegemann, Peter Stehle, Helmut Jakusch | 2001-05-22 |
| 5782935 | Process for coloring polytrimethylene terephthalate fibres and use of the fibres colored by this process | Peter Hirt, Gilbert Kühl, Hermann Piana, Heinz Herlinger | 1998-07-21 |