Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009722 | Process for producing base material for an aluminum offset printing plate | Gerhard Sprintschnik, Walter Niederstaetter, Wolfgang von Asten, Gunther Scharf, Barbara Grzembra | 1991-04-23 |
| 4945004 | Base material for an aluminum offset printing plate | Gerhard Sprintschnik, Walter Niederstaetter, Wolfgang V. Asten, Gunther Scharf, Barbara Grzemba | 1990-07-31 |
| 4672022 | Radiation-sensitive printing plates with base which consists of an aluminum alloy having iron and manganese | Walter Niederstatter | 1987-06-09 |
| 4655136 | Sheet material of mechanically and electrochemically roughened aluminum, as a support for offset-printing plates | Walter Niederstatter, Joachim Stroszynski, Dieter Böhm, Gerhard Sprintschnik | 1987-04-07 |
| 4487823 | Light-sensitive copying material and process for the manufacture thereof utilizing non-ionic fluorinated ester surfactant | Peter Lehmann, Dieter Mohr | 1984-12-11 |