Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5473079 | Process for preparing 2-arylbenzimidazole-5-sulfonic acids | Ulrich Heywang, Ingeborg Stein, Ulrich Fechtel, Michael Casutt, Gerald Faller | 1995-12-05 |
| 5223360 | Materials coated with plate-like pigments | Constanze Prengel, Klaus-Dieter Franz, Manfred Kieser, Axel von Daacke, Klaus Bernhardt | 1993-06-29 |
| 5023379 | Process for the preparation of hydroxyamines | Ernst Felder, Michael C. Romer, Hans Bardonner, Wolfgang Fruhstorfer | 1991-06-11 |
| 4980268 | Negative photoresists of the polyimide type containing 1,2-disulfones | Ekkehard Bartmann, Rudolf Klug, Reinhard Schulz | 1990-12-25 |
| 4605794 | Sorbitol, process for its preparation, and use thereof | Friedrich Reiff, Arno Basedow, Hans-Wolfgang Hugenbusch, Peter C. Schmidt, Hans Bardonner | 1986-08-12 |
| 4540650 | Photoresists suitable for forming relief structures of highly heat-resistant polymers | Rudolf Klug, Hans-Joachim Merrem, Karl-Heinz Neisius | 1985-09-10 |
| 4539288 | Process for the development of relief structures based on radiation-crosslinked polymeric precursors of polymers which are resistant to high temperature | Hans-Joachim Merrem, Karlheinz Neisius, Rudolf Klug | 1985-09-03 |
| 4532369 | Process for the preparation of [2,2]-paracyclophane | — | 1985-07-30 |
| 4507511 | Sorbitol, process for its preparation, and use thereof | Friedrich Reiff, Arno Basedow, Hans-Wolfgang Hugenbusch, Peter C. Schmidt, Hans Bardonner | 1985-03-26 |
| 4474987 | Process for preparing N,N-disubstituted p-phenylenediamine derivatives | Bruno Wollemann, Hans Bardonner | 1984-10-02 |