Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4618405 | Process for the electrochemical roughening of aluminum for use as printing plate supports, in an aqueous mixed electrolyte | Werner Frass | 1986-10-21 |
| 4606975 | Process for the two-stage anodic oxidation of aluminum bases for offset printing plates and product thereof | — | 1986-08-19 |
| 4604341 | Process for the one-stage anodic oxidation of aluminum bases for offset printing plates and product thereof | — | 1986-08-05 |
| 4600482 | Process for the electrochemical roughening of aluminum for use as printing plate supports, in an aqueous mixed electrolyte | — | 1986-07-15 |
| 4566959 | Process for the electrochemical roughening of aluminum useful for printing plate supports, in an aqueous mixed electrolyte | — | 1986-01-28 |
| 4566960 | Process for electrochemical roughening of aluminum useful for printing plate supports, in an aqueous mixed electrolyte | — | 1986-01-28 |
| 4554057 | Process for manufacturing support materials for offset printing plates | — | 1985-11-19 |
| 4554216 | Process for manufacturing support materials for offset printing plates | — | 1985-11-19 |
| 4510227 | Light-sensitive aqueous developable copying material and product by coating process thereof utilizing polysiloxane and alkylene oxide copolymer as coating aid | Kurt Riess | 1985-04-09 |
| 4487823 | Light-sensitive copying material and process for the manufacture thereof utilizing non-ionic fluorinated ester surfactant | Peter Lehmann, Kurt Reiss | 1984-12-11 |
| 4482444 | Process for electrochemically modifying electrochemically roughened aluminum support materials and the use of these materials in the manufacture of offset printing plates | Werner Frass | 1984-11-13 |
| 4458005 | Polyvinylmethylphosphinic acid, process for its manufacture and use | Walter Herwig, Werner Frass, Gerhard Usbeck | 1984-07-03 |
| 4427765 | 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 | Werner Frass | 1984-01-24 |
| 4427766 | Hydrophilic coating of salt type nitrogen polymer on aluminum support materials for offset printing plates and process for manufacture and use with light sensitive layer thereon | — | 1984-01-24 |