Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812913 | Diaphragm arrangement for opto-electronic scanning of originals | Jorg Schulz-Hennig | 1989-03-14 |
| 4564859 | Method and an apparatus for producing color separations for single color printing | Michael T. Nowak, Friedrich Redecker, Ralf Tiede | 1986-01-14 |
| 4521812 | Method of improving contrast accentuation | — | 1985-06-04 |
| 4414635 | Method and circuit for recognition of colors | Uwe Gast, Eggert Jung, Franz Kuhn, Klaus Mollgaard, Friedrich Redecker +3 more | 1983-11-08 |
| 4403249 | Apparatus for mixing image signals to obtain a printing master | Ingo Hoffrichter | 1983-09-06 |
| 4293872 | Production of printing blocks or forms | Hans W. Keller | 1981-10-06 |
| 4261011 | Color separation production using color recognition circuit | — | 1981-04-07 |
| 4255761 | Apparatus for mixing image signals to obtain a printing master | Ingo Hoffrichter | 1981-03-10 |
| 4194839 | Circuit arrangement for recognizing and adjusting color components | — | 1980-03-25 |