Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6127091 | Photopolymerizable composition and photopolymerizable recording material prepared using this composition | Ulrich Geissler, Hans Ruckert | 2000-10-03 |
| 6114091 | Photopolymerizable composition containing an N-heterocyclic photoinitiator | Ulrich Geissler, Hans Ruckert | 2000-09-05 |
| 5221595 | Photopolymerizable mixture and recording material prepared therefrom | Juergen Lingnau | 1993-06-22 |
| 5217845 | Photopolymerizable mixture and photopolymerizable copying material containing same | Hartmut Steppan | 1993-06-08 |
| 5200299 | Quinoline and acridine compounds effective as photoinitiators and containing polymerizable (meth)acryloyl substituents | Hartmut Steppan | 1993-04-06 |
| 5085669 | Process for stabilizing a leuco-dye solution by means of a piperidine derivative | Hartmut Wiezer | 1992-02-04 |
| 5057398 | Photopolymerizable composition and photopolymerizable recording material containing same | Hansjoerg Vollmann | 1991-10-15 |
| 4940647 | Photopolymerizable compositions a leuco dye and a leuco dye stabilizer | Hartmut Wiezer | 1990-07-10 |
| 4780393 | Photopolymerizable composition and photopolymerizable recording material containing same | — | 1988-10-25 |
| 4749639 | Photosensitive composition and recording material with photosensitive polymeric diazonium salt and thermal cross-linkable copolymer binder | — | 1988-06-07 |
| 4737445 | Photopolymerizable composition and photopolymerizable recording material containing said composition | Heike Ziemke | 1988-04-12 |
| 4659645 | Photosensitive mixture and photosensitive recording material with diazonium salt polycondensation product and free radical radiation polymerizable composition | Walter Lutz, Hartmut Steppan | 1987-04-21 |
| 4457997 | Two-component diazotype material | Klaus Thoese, Siegfried Scheler | 1984-07-03 |
| 4273850 | Two-component diazotype material | — | 1981-06-16 |