Issued Patents All Time
Showing 51–65 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6638679 | Photosensitive compositions having mixtures of alkoxy and non-alkoxy diazonium salt containing compounds | Stephan J. W. Platzer, Maria T. Sypek, Paul A. Perron, Melinda Alden | 2003-10-28 |
| 6596456 | Use of cinnamic acid groups containing acetal polymers for radiation-sensitive compositions and lithographic printing plates | Michael Flugel, Eduard Kottmair | 2003-07-22 |
| 6482578 | Aqueous developer for negative working lithographic printing plates | Ulrich Fiebag, Hans-Joachim Timpe | 2002-11-19 |
| 6420089 | On press developable printing plate precursor | Udo Dwars | 2002-07-16 |
| 6383717 | Aqueous developer for negative working lithographic printing plates | Ulrich Fiebag, Hans-Joachim Timpe | 2002-05-07 |
| 6376144 | Organic photoconductive composition | — | 2002-04-23 |
| 6270938 | Acetal copolymers and use thereof in photosensitive compositions | Alessandro Gandini, Sandrine Waig Fang, Hans-Joachim Timpe | 2001-08-07 |
| 6087066 | Polyvinyl acetals having imido groups and use thereof in photosensitive compositions | Celin Savariar-Hauck, Hans-Joachim Timpe | 2000-07-11 |
| 6051366 | Visible radiation sensitive composition and recording material producible therefrom | Hans-Joachim Timpe, Hans-Peter Herting | 2000-04-18 |
| 5985996 | Acetal polymers and use thereof in photosensitive compositions and lithographic printing plates | Udo Dwars, Celin Savariar-Hauck, Hans-Joachim Timpe | 1999-11-16 |
| 5925491 | Amido substituted acetal polymer binders and their use in photosensitive compositions | Udo Dwars, Celin Savariar-Hauck, Hans-Joachim Timpe | 1999-07-20 |
| 5849842 | Sulfonamido substituted acetal polymers | Hans-Joachim Timpe, Udo Dwars, Celin Savariar-Hauck | 1998-12-15 |
| 5700619 | Acetal polymers and use thereof in photosensitive compositions and lithographic printing plates | Udo Dwars, Celin Savariar-Hauck, Hans-Joachim Timpe | 1997-12-23 |
| 5698360 | Sulfonamido substituted acetal polymers and use thereof in photo-sensitive compositions and lithographic printing plates | Hans-Joachim Timpe, Udo Dwars, Celin Savariar-Hauck | 1997-12-16 |
| 5695905 | Photosensitive compositions and lithographic printing plates utilizing oxazoline modified acid polymers | Celin Savariar-Hauck, Hans-Joachim Timpe, Udo Dwars | 1997-12-09 |