Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4458007 | Radiation polymerizable mixture containing reaction products of glycerol acrylates and polyisocyanates | Ulrich Geissler, Walter Herwig, Manfred Hasenjaeger | 1984-07-03 |
| 4379834 | Process for cleaning copper-containing metal surfaces | Walter Herwig, Kurt Klupfel, Helga Sikora | 1983-04-12 |
| 4241166 | Photopolymerizable composition comprising a monoazo dye as contrast colorant | Kurt Klupfel, Walter Deucker, Hansjorg Vollmann | 1980-12-23 |
| 4233395 | Photopolymerizable transfer material | Kurt Klupfel | 1980-11-11 |