WF

Werner Frass

Hoechst Gmbh: 21 patents #119 of 4,020Top 3%
AN Agfa-Gevaert Nv: 8 patents #210 of 1,819Top 15%
HA Hoescht Aktiengesellschaft: 1 patents #26 of 159Top 20%
Overall (All Time): #126,241 of 4,157,543Top 4%
30
Patents All Time

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDate
5967047 Thermal process for applying hydrophilic layers to hydrophobic substrates for offset printing plates Heinrich Kuhn, Dieter Jaculi, Engelbert Pliefke, Ulrich Bos 1999-10-19
5922508 Photopolymerizable recording material Rudolf Zertani, Dieter Mohr 1999-07-13
5900352 Developer for irradiated radiation-sensitive recording materials Andreas Elsaesser, Jutta Bachstein 1999-05-04
5753404 Photosensitive recording material containing negative working diazonium salt layer and discontinuous top layer Andreas Elsaesser, Otfried Gaschler, Klaus-Peter Konrad 1998-05-19
5744272 Electrophotographic recording material for the production of printing plates Andreas Elsaesser, Fritz-Feo Grabley, Gabor Jerling 1998-04-28
5705313 Process for the production of a lithographic printing plate through selective transfer Stephan J. W. Platzer, Willi-Kurt Gries 1998-01-06
5695903 Process for developing irradiated radiation-sensitive recording materials Andreas Elsaesser, Jutta Bachstein 1997-12-09
5576137 Matted, radiation-sensitive recording material and printing plate Otfried Gaschler, Klaus Joerg, Guenter Hultzsch, Andreas Elsaesser 1996-11-19
5302487 Negative-working photosensitive coating solution containing photohardenable diazo compound, polymeric binder and four component solvent Reinhold Arneth, Eberhard Hehl, Guenter Jung 1994-04-12
5116720 Developing solvent for layers which are crosslinkable by photopolymerization and process for the production of relief forms Hans-Joachim Schlosser, Guenther Schoen 1992-05-26
5114832 Photopolymerizable mixture and recording material prepared therefrom, having a photoinitiating set of compounds which give increased absorption below 450 nm Rudolf Zertani, Dieter Mohr, Klaus Rode, Klaus Joerg 1992-05-19
5085974 Photopolymerizable mixture, and a recording material produced therefrom Dieter Mohr, Klaus Rode 1992-02-04
5077177 Process for the production of relief forms with a developing solvent comprising phenol ether Hans-Joachim Schlosser, Guenther Schoen 1991-12-31
5068163 Radiation-sensitive positive working composition and copying material Andreas Elsaesser, Dieter Mohr 1991-11-26
5043249 Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups and a recording material produced therefrom Klaus Rode, Joachim Gersdorf, Dieter Mohr 1991-08-27
4987055 Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups, and a recording material produced therefrom Klaus Rode, Dieter Mohr, Joachim Gersdorf 1991-01-22
4985341 Photopolymerizable mixture, and a recording material produced therefrom Klaus Rode, Dieter Mohr, Joachim Gersdorf 1991-01-15
4983498 Photopolymerizable mixture and recording material produced therefrom Klaus Rode, Dieter Mohr 1991-01-08
4929534 Positive-working photosensitive mixture and photolithographic copying material produced therefrom with o-quinone dialide sulfonyl ester and azo coupler Trutz-Ulrich Stephani, Dieter Mohr, Britta Maisel 1990-05-29
4834844 Process for the selective additive correction of voids in copying layers Engelbert Pliefke 1989-05-30
4725526 Process for reducing halations using lubricant in the course of irradiating and developing reproduction layers used for preparing printing plates Engelbert Pliefke 1988-02-16
4716098 Developer for preparing printing forms and process therefor Gerhard Mack, Birgit Mueller, Guenter Jung 1987-12-29
4618405 Process for the electrochemical roughening of aluminum for use as printing plate supports, in an aqueous mixed electrolyte Dieter Mohr 1986-10-21
4579811 Process for developing exposed diazo negative-working reproduction layers using aqueous developer having salt of aromatic carboxylic acid with adjacent group substituent Loni Schell, Inge Gros 1986-04-01
4530897 Process for desensitizing diazo lithographic printing forms using desensitizing solution with light absorbing compound Gunter Berghaeuser, Loni Schell 1985-07-23