Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5006457 | Photographic recording material | Hans Vetter, Hans hlschlager, Heinrich Odenwalder, Friedhelm Sommer, Lothar Rosenhahn | 1991-04-09 |
| 4248963 | Method of preventing the formation of contact spots on photographic materials | Gunter Kolb | 1981-02-03 |