Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5571664 | Color photographic silver halide material | Peter Hankofer, Hans-Ulrich Borst | 1996-11-05 |
| 5547818 | Colour print material with variable gradation | Otto Lapp, Arno Schmuck, Wolfgang Schmidt | 1996-08-20 |