Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5268252 | Radiation-sensitive ester and process for its preparation | Siegfried Scheler, Axel Schmitt, Gerhard Buhr | 1993-12-07 |
| 5253011 | Copying method and copier for film | Wilhelm Nitsch, Gunther Schnall, Gerhard Benker | 1993-10-12 |
| 5223009 | Exhaust gas equipment for an internal combustion engine | Hans-Dieter Schuster, Roland Ludwig Huss | 1993-06-29 |
| 5192970 | Method and arrangement for copying filmstrips | Gunter Findeis, Wilhelm Nitsch, Hans-Juergen Rauh, Helmut Treiber, Hans-Georg Schindler | 1993-03-09 |
| 5162190 | 1,2-naphthoquinone-2-diazide-sulfonic acid amides and photosensitive compositions containing these compounds | Gerhard Buhr, Hartmut Steppan | 1992-11-10 |
| 5155524 | Photographic copier with masking device and copying method | Knut Oberhardt | 1992-10-13 |
| 4971887 | Positive-working photosensitive mixture and recording material of high thermal stability with phenolic novolak of m-cresol and 2,3,6-trialkylphenol | Axel Schmitt, Burkhard Behrens | 1990-11-20 |
| 4873546 | Color printing method and apparatus | Manfred Fürsich, Wilhelm Nitsch, Hans-Jurgen Rauh, Helmut Treiber | 1989-10-10 |
| 4774171 | Bis-1,2-naphthoquinone-2-diazide-sulfonic acid amides, their use in a radiation-sensitive mixture, and radiation-sensitive copying material | Gerhard Buhr | 1988-09-27 |
| 4691562 | Process for determining aging condition of exhaust-gas catalyst | Joerg Abthoff, Hans-Dieter Schuster, Hans-Joachim Langer, Gunther Ebinger | 1987-09-08 |
| 4647187 | Photographic copier | Gunter Findeis, Ernst Biedermann | 1987-03-03 |
| 4592649 | Photographic roller copying apparatus | Friedbert Freitag, Friedrich Hujer, Erich Nagel, Bernd Payrhammer | 1986-06-03 |
| 4575226 | Photographic roller copier apparatus | Erich Nagel, Bernd Payrhammer | 1986-03-11 |
| 4566786 | Method of copying color exposures | Manfred Fürsich, Helmut Treiber, Berthold Fergg, Gunter Findeis | 1986-01-28 |
| 4464045 | Method of and an arrangement for calibrating a color copying apparatus | Gunter Findeis, Berthold Fergg, Gerhard Kuhn | 1984-08-07 |
| 4461832 | Preparation of an enzymatically active formulation embedded in silica gel | Chung-Ji Tschang, Heinrich Klefenz, Axel Sanner | 1984-07-24 |
| 4459018 | Device for singling out non-reproducible copies fed in a photographic printer | Werner von Stein, Wilfried Rauskolb | 1984-07-10 |
| 4390270 | Photographic copier | Ernst Biedermann, Gunter Findeis, Klaus Weber | 1983-06-28 |
| 4218032 | Apparatus for convoluting webs onto rotary cores | Erich Nagel, Heinz Kolbl, Horst Wildner, Ernst Ismann, Siegfried Bartel +2 more | 1980-08-19 |
| 4214834 | Photographic copying machine | Gunter Findeis, Klaus Weber | 1980-07-29 |
| 4192605 | Method and apparatus for making color prints | Berthold Fergg, Gunter Findeis | 1980-03-11 |