Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5229264 | Photographic silver halide emulsion | Bruno Mucke | 1993-07-20 |
| 5006455 | Gradation-variable black-and-white paper | Helmut Kampfer | 1991-04-09 |
| 4990440 | Photographic silver halide emulsion containing gelatine | Franz Moll, Bruno Mucke, Klaus Wagner | 1991-02-05 |
| 4987063 | Gradation variable black- and -white paper | Helmut Kampfer, Gunther Mahlberg | 1991-01-22 |
| 4810627 | Photographic recording material | Hans Ohlschlager, Helmut Reuss, Karl Steinbeck | 1989-03-07 |
| 4455359 | Tamper-proof document | Werner Verburg, Harald von Rintelen | 1984-06-19 |
| 4301242 | Emulsion mixture for color reversal (reflection viewing) material | Karl Czernik | 1981-11-17 |
| 4210714 | Photographic material with improved properties | Heinrich Odenwalder, Anita von Konig, Franz Moll, Lothar Rosenhahn, Friedhelm Sommer | 1980-07-01 |