Issued Patents All Time
Showing 26–50 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5229253 | Photopolymerizable mixture and recording material produced therefrom | Rudolf Zertani | 1993-07-20 |
| 5227281 | Process for producing negative copies | Otfried Gaschler, Andreas Elsaesser, Hans W. Frass | 1993-07-13 |
| 5223374 | Process for preparing a multicolored proof and radiation-sensitive recording material for use in this process | Rudolf Zertani, Juergen Mertes, Martin Benzing | 1993-06-29 |
| 5206113 | Graft polymer with unsaturated lateral chains, photosensitive mixture containing said graft polymer and recording material produced therefrom | Waltraud Mueller-Hess, Matthias Kroggel | 1993-04-27 |
| 5187040 | Photocurable mixture and material containing diazonium salt polycondensation product or organic azido compound photosensitizer and polyurethane binder grafted with vinyl alcohol and vinyl acetal units | Waltraud Mueller-Hess, Matthias Kroggel, Karl J. Rauterkus | 1993-02-16 |
| 5149613 | Process for producing images on a photosensitive material | Paul Stahlhofen | 1992-09-22 |
| 5134053 | Graft polymer with unsaturated lateral chains, photosensitive mixture containing said graft polymer and recording material produced therefrom | Waltraud Mueller-Hess, Matthias Kroggel | 1992-07-28 |
| 5126504 | Electrophotographic copying material with an alkali soluble polyurethane graft copolymer binder | Waltraud Mueller-Hess, Matthias Kroggel | 1992-06-30 |
| 5114832 | Photopolymerizable mixture and recording material prepared therefrom, having a photoinitiating set of compounds which give increased absorption below 450 nm | Rudolf Zertani, Klaus Rode, Werner Frass, Klaus Joerg | 1992-05-19 |
| 5085974 | Photopolymerizable mixture, and a recording material produced therefrom | Werner Frass, Klaus Rode | 1992-02-04 |
| 5068163 | Radiation-sensitive positive working composition and copying material | Andreas Elsaesser, Werner Frass | 1991-11-26 |
| 5066564 | Photopolymerizable mixture and recording material produced therefrom | Rudolf Zertani, Klaus Rode | 1991-11-19 |
| 5049479 | Photopolymerizable mixture and recording material produced therefrom | Rudolf Zertani | 1991-09-17 |
| 5043249 | Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups and a recording material produced therefrom | Klaus Rode, Joachim Gersdorf, Werner Frass | 1991-08-27 |
| 4987055 | Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups, and a recording material produced therefrom | Klaus Rode, Werner Frass, Joachim Gersdorf | 1991-01-22 |
| 4985341 | Photopolymerizable mixture, and a recording material produced therefrom | Klaus Rode, Werner Frass, Joachim Gersdorf | 1991-01-15 |
| 4983498 | Photopolymerizable mixture and recording material produced therefrom | Klaus Rode, Werner Frass | 1991-01-08 |
| 4983478 | Burn-in gumming composition for offset printing plates | Paul Stahlhofen | 1991-01-08 |
| 4937170 | Coupling agents for photographic elements | — | 1990-06-26 |
| 4929534 | Positive-working photosensitive mixture and photolithographic copying material produced therefrom with o-quinone dialide sulfonyl ester and azo coupler | Trutz-Ulrich Stephani, Britta Maisel, Werner Frass | 1990-05-29 |
| 4885230 | Burn-in gumming composition for offset printing plates | Paul Stahlhofen | 1989-12-05 |
| 4828959 | Light-sensitive diazonium resin mixture and light-sensitive diazonium resin containing recording material with organic peroxide compound | Georg Pawlowski, Guenter Jung | 1989-05-09 |
| 4824535 | Process for the electrochemical graining of aluminum for use in printing plate supports | Engelbert Pliefke | 1989-04-25 |
| 4786381 | Process for electrochemically modifying support materials of aluminum or aluminum alloys, which have been grained in a multi-stage process and use of these materials in the manufacture of offset-printing plates | Engelbert Pliefke | 1988-11-22 |
| 4626328 | Process for the electrochemical roughening of aluminum for use as printing plate supports, in an aqueous mixed electrolyte | — | 1986-12-02 |