Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12410114 | Process for the preparation of α-functionalized ketones | Reinhard Sommerlade | 2025-09-09 |
| 6288146 | Low-emission binders for coatings | Rainer Blum | 2001-09-11 |
| 6194125 | Preparation of photopolymeric letterpress printing plates | Friedrich Goffing, Hartmut Sandig, Markus Tonnessen | 2001-02-27 |
| 6190832 | Preparation of photopolymeric gravure printing plates | Friedrich Goffing, Hartmut Sandig, Markus Tonnessen | 2001-02-20 |
| 6165557 | Solvent-free coating compositions which can be cured with low emissions | Rainer Blum, Uwe Meisenburg, Dietmar Chmielewski | 2000-12-26 |
| 6162840 | Impregnation, sealing and coating compounds | Rainer Blum, Gunther Hegemann, Manfred Eichhorst | 2000-12-19 |
| 6133337 | Use of reactive prepolymeric organic compounds | Rainer Blum, Gunther Hegemann, Gunther Baumgarten | 2000-10-17 |
| 6037102 | Multilayer recording element suitable for the production of flexographic printing plates by digital information transfer | Hartmut Sandig, Friedrich Goffing, Alfred Leinenbach, Hans-Jurgen Nisslmuller | 2000-03-14 |
| 6020108 | Preparation of photopolymeric letterpress printing plates | Friedrich Goffing, Hartmut Sandig, Markus Tonnessen | 2000-02-01 |
| 5994032 | Preparation of photopolymeric gravure printing plates | Friedrich Goffing, Hartmut Sandig, Markus Tonnessen | 1999-11-30 |
| 5925490 | Multilayer recording element suitable for producing flexographic printing plates by digital information transfer | Cliff Scherer, Oskar Nuyken | 1999-07-20 |
| 5593811 | Multilayer, sheet-like, photosensitive recording material for the production of printing plates | Stefan Wegener, Friedrich Goffing | 1997-01-14 |
| 5474875 | Photosensitive mixture for producing relief and printing plates | Thomas Telser, Thomas Zwez | 1995-12-12 |
| 5468596 | Photosensitive recording element and production of a relief printing plate | Thomas Telser, Thomas Zwez, Bernhard Albert | 1995-11-21 |
| 5332649 | Production of a photosensitive recording element | Gerhard Bleckmann, Thomas Telser | 1994-07-26 |
| 5262278 | Storage-stable solution of a carboxyl-containing copolymer and production of photosensitive coatings and offset printing plates | Harald Lauke, Axel Sanner, Joachim Roser | 1993-11-16 |
| 5217813 | Polyethyleneimine and polyvinylamine derivatives, aluminum-based substrate materials coated with these derivatives and the use thereof for the production of offset printing plates | Joachim Roser, Juergen Mohr, Armin Lange, Knut Oppenlaender, Walter Denzinger | 1993-06-08 |
| 5073475 | Production of plate-like, sheet-like or tape-like materials and of sensitized lithographic printing plates | Harald Lauke, Gregor Schuermann, Hartmut Sandig | 1991-12-17 |
| 4935332 | Photosensitive element having an aluminum base and silane intermediate layer | Harald Lauke, Wilhelm Weber, Reinhold J. Leyrer, Bernhard Nick | 1990-06-19 |
| 4866183 | Preparation of hexaarylbisimidazoles | Uwe Kempe, Toni Dockner, Helmut Karn, Thomas Bluemel, Reinhold J. Leyrer | 1989-09-12 |
| 4857438 | Photochromic system and layers produced therewith | Reinhold J. Leyrer | 1989-08-15 |
| 4782000 | Electrophotographic recording elements with hydrolyzed silane layer | Harald Lauke, Reinhold J. Leyrer, Bernhard Nick | 1988-11-01 |
| 4770976 | Phenanthroimidazole compounds, their preparation, photopolymerizable coating and recording materials, and lithographic layers produced using these | Reinhold J. Leyrer | 1988-09-13 |