Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842987 | Photosensitive element for producing printing plates or resist images | Axel Sanner, Hans Schupp, Erich Beck | 1989-06-27 |
| 4725524 | Dry film resist and production of resist images | Gunnar Schornick, Axel Sanner | 1988-02-16 |
| 4714751 | Crosslinkable resin, photosensitive recording material based on this crosslinkable resin, and production of a lithographic printing plate using this photosensitive recording material | Gunnar Schornick, Reiner Hofmann | 1987-12-22 |
| 4710446 | Photosensitive recording materials | Gerhard Hoffmann, Reiner Hofmann | 1987-12-01 |
| 4632897 | Photopolymerizable recording material suitable for the production of photoresist layers | Helmut Barzynski, Albrecht Eckell, Uwe Klinsmann, Reinhold J. Leyrer, Axel Sanner | 1986-12-30 |
| 4599293 | Toner transfer process for transferring and fixing a toner image by means of film | Albrecht Eckell, Gerhard Hoffmann, Reinhold J. Leyrer, Heinz-Ulrich Werther | 1986-07-08 |
| 4596759 | Dry film resist containing two or more photosensitive strata | Hans Schupp | 1986-06-24 |
| 4579806 | Positive-working photosensitive recording materials | Hans Schupp, Klaus Jaeckel, Reinhold J. Leyrer | 1986-04-01 |
| 4550072 | Photosensitive recording materials containing particles for the production of abrasion-resistant gravure printing plates, and the production of gravure printing plates using these recording materials | John Lynch | 1985-10-29 |
| 4548894 | Photosensitive recording materials for the production of abrasion-resistant and scratch-resistant gravure printing plates comprising particles | John Lynch | 1985-10-22 |
| 4481272 | Layered electrophotographic recording medium comprising heterocyclic nitrogen containing organic dye compounds | Albrecht Eckell, Heinz Eilingsfeld, Franz Feichtmayr, Gerhard Hoffmann, Reinhold J. Leyrer +1 more | 1984-11-06 |