Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6844136 | Photopolymerizable mixture and recording material prepared therewith | Thorsten Lifka, Sabine Kosack, Thomas Leichsenring | 2005-01-18 |
| 6576396 | Stable pigment dispersion and photosensitive recording material prepared therewith | Thomas Leichsenring, Thorsten Lifka, Armin Pink, Klaus-Peter Konrad | 2003-06-10 |
| 6576399 | Radiation-sensitive recording material for the production of waterless offset printing plates | Willi-Kurt Gries | 2003-06-10 |
| 6492093 | Radiation-sensitive mixtures comprising IR-absorbing cyanine dyes having a betaine structure or having a betaine structure and containing an anion, and recording materials prepared therewith | Otfried Gaschler, Andreas Elsaesser, Joerg Jung | 2002-12-10 |
| 6274285 | Radiation-sensitive recording material for the production of driographic offset printing plates | Willi-Kurt Gries | 2001-08-14 |
| 6238838 | Radiation-sensitive mixture comprising IR-absorbing, anionic cyanine dyes and recording material prepared therewith | Otfried Gaschler, Andreas Elsaesser, Fritz-Feo Grabley, Joerg Jung, Engelbert Pliefke | 2001-05-29 |
| 6165685 | Thermally recordable material insensitive to white light | Karin Maerz, Helmut Haberhauer, Andreas Elsaesser, Fritz-Feo Grabley | 2000-12-26 |
| 5924364 | Laser-imagable recording material and printing plate produced therefrom for waterless offset printing | Fritz-Feo Grabley, Willi-Kurt Gries | 1999-07-20 |
| 5773187 | Water developable diazonium and mineral acid containing recording material for producing water-free offset printing plates | Willi-Kurt Gries, Klaus-Peter Konrad, Klaus-Juergen Przybilla | 1998-06-30 |
| 5516623 | Developing solvent for layers which are crosslinkable by photopolymerization and process for the production of relief forms | Guenther Schoen | 1996-05-14 |
| 5516624 | Photopolymerizable elastomeric mixture and recording material containing this mixture, for producing ozone-resistant flexographic printing forms | — | 1996-05-14 |
| 5512419 | Photopolymerizable elastomeric mixture and recording material containing this mixture, for producing ozone-resistant flexographic printing forms | — | 1996-04-30 |
| 5312719 | Developing solvent for layers which are crosslinkable by photopolymerization and process for the production of relief forms | Guenther Schoen | 1994-05-17 |
| 5135827 | Process for the manufacture of photopolymer plates | Dieter Böhm, Raimund J. Faust, Joachim Gersdorf, Rudolf Petry | 1992-08-04 |
| 5116720 | Developing solvent for layers which are crosslinkable by photopolymerization and process for the production of relief forms | Werner Frass, Guenther Schoen | 1992-05-26 |
| 5077177 | Process for the production of relief forms with a developing solvent comprising phenol ether | Werner Frass, Guenther Schoen | 1991-12-31 |
| 5041360 | Process for producing an ozone-resistant flexographic printing form | — | 1991-08-20 |
| 4963472 | Developing method for printing plates for waterless offset printing with glycol diether containing developer | Joerg Strack | 1990-10-16 |
| 4956262 | Photosensitive printing plate for waterless offset printing with photosensitive layer of diazonium salt polycondensation product and photopolymerizable composition and overlying silicone rubber layer | Joachim Gersdorf | 1990-09-11 |
| 4937169 | Light-sensitive printing plate for waterless planographic printing with inner and outer layer of silicone rubber wherein outer layer has higher degree of crosslinking than inner layer | — | 1990-06-26 |
| 4842988 | Presensitized waterless planographic printing plate with amorphous silicic acid interlayer and process of making and using | Heinz Herrmann | 1989-06-27 |
| 4842990 | Presensitized negative working waterless planographic printing plate with amorphous silicic acid interlayer and process of making and using | Heinz Herrmann, Susanne Billino | 1989-06-27 |
| 4775607 | Light-sensitive mixed diazonium condensate printing plate for waterless offset printing | — | 1988-10-04 |
| 4526852 | Liquid developer for developing electrostatic charge images and process for its preparation | Heinz Herrmann | 1985-07-02 |
| 4497886 | Electrophotographic liquid developer for the reversal development _of negatively-charged images | Heinz Herrmann | 1985-02-05 |