Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5043255 | Color photographic material with polyester oil former | Klaus Wagner, Gerald Karich, Friedhelm Sommer | 1991-08-27 |
| 4952487 | Color photographic recording material | Gunter Renner, Johannes Sobel, Klaus Wagner, Friedhelm Sommer | 1990-08-28 |
| 4837043 | Process for the production of test strips by casting method | Helmut Engelmann, Karlheinz Hildenbrand | 1989-06-06 |
| 4361032 | Apparatus for measuring surface tension | Werner Lessnig, Gunter Metz, Willi Spiegel, Manfred Faust | 1982-11-30 |