Werner Frass
31Patents
10h-index
34Co-inventors
75Inventor score
Filing activity: Dec 23, 1976 → Nov 25, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5114832A | Photopolymerizable mixture and recording material prepared therefrom, having a photoinitiating set of compounds which give increased absorption below 450 nm | Emerging Cross-Sectional Technologies | 65 | Expired |
| US4387151A | Light-curable mixture and light-sensitive copying material made therewith | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4427765A | Hydrophilic coating of salt-type phosphorus or sulfur polymer on aluminum support materials for offset printing plates and process for manufacture and use with light sensitive layer thereon | Performing Operations; Transporting | 30 | Expired |
| US4716098A | Developer for preparing printing forms and process therefor | Physics | 25 | Expired |
| US4983498A | Photopolymerizable mixture and recording material produced therefrom | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4458005A | Polyvinylmethylphosphinic acid, process for its manufacture and use | Chemistry; Metallurgy | 20 | Expired |
| US5967047A | Thermal process for applying hydrophilic layers to hydrophobic substrates for offset printing plates | Chemistry; Metallurgy | 14 | Expired |
| US5085974A | Photopolymerizable mixture, and a recording material produced therefrom | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4482444A | Process for electrochemically modifying electrochemically roughened aluminum support materials and the use of these materials in the manufacture of offset printing plates | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5576137A | Matted, radiation-sensitive recording material and printing plate | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5695903A | Process for developing irradiated radiation-sensitive recording materials | Physics | 10 | Expired |
| US4579811A | Process for developing exposed diazo negative-working reproduction layers using aqueous developer having salt of aromatic carboxylic acid with adjacent group substituent | Physics | 9 | Expired |
| US5922508A | Photopolymerizable recording material | Physics | 8 | Expired |
| US4725526A | Process for reducing halations using lubricant in the course of irradiating and developing reproduction layers used for preparing printing plates | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5068163A | Radiation-sensitive positive working composition and copying material | Physics | 6 | Expired |
| US4447510A | Process for producing relief copies in light hardenable materials with ultrasonic treatment | Physics | 6 | Expired |
| US4985341A | Photopolymerizable mixture, and a recording material produced therefrom | Physics | 5 | Expired |
| US5077177A | Process for the production of relief forms with a developing solvent comprising phenol ether | Physics | 5 | Expired |
| US4929534A | Positive-working photosensitive mixture and photolithographic copying material produced therefrom with o-quinone dialide sulfonyl ester and azo coupler | Physics | 5 | Expired |
| US5043249A | Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups and a recording material produced therefrom | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4618405A | Process for the electrochemical roughening of aluminum for use as printing plate supports, in an aqueous mixed electrolyte | Chemistry; Metallurgy | 4 | Expired |
| US4987055A | Photopolymerizable composition comprising (meth)acrylates with photooxidizable groups, and a recording material produced therefrom | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4530897A | Process for desensitizing diazo lithographic printing forms using desensitizing solution with light absorbing compound | Performing Operations; Transporting | 4 | Expired |
| US4101327A | Light-sensitive copying compositions and photoinitiators contained therein | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5900352A | Developer for irradiated radiation-sensitive recording materials | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.