Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6177177 | Ink jet recording material comprising an agent exhibiting a concentration gradient. | Stefan Herrmann, Jorg Hagemann, Gunter Helling, Klaus Henseler, Beate Weber | 2001-01-23 |
| 5885760 | Color photographic recording material | Peter Bergthaller | 1999-03-23 |