Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4409314 | Light-sensitive compounds, light-sensitive mixture, and light-sensitive copying material prepared therefrom | Gerhard Buhr, Hans Ruckert | 1983-10-11 |
| 4407926 | Light-sensitive mixture comprising O-naphthoquinone-diazides and light sensitive copying material prepared therefrom | — | 1983-10-04 |
| 4404272 | Light-sensitive mixture and copying material prepared therefrom with novolak having brominated phenol units | — | 1983-09-13 |
| 4387152 | Light-sensitive mixture and copying material prepared therefrom, and process for the preparation of a printing form from the copying material | — | 1983-06-07 |
| 4275139 | Light-sensitive mixture and copying material produced therefrom | — | 1981-06-23 |
| 4266000 | Photosensitive copying composition | Fritz Erdmann | 1981-05-05 |