Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5306783 | Resin solution for the impregnation of paper webs | Uwe Kirchgaessner, Jakob Decher, Otto Wittmann, Manfred Niessner, Harro Petersen | 1994-04-26 |
| 4740644 | Preparation of 1,2-dichloroethane by oxychlorination of ethylene over a copper-containing supported catalyst | Hans-Dieter Eichhorn, Hans H. Schneehage, Luc Cordemans, Werner Hebgen, Wolf D. Mross | 1988-04-26 |
| 4296149 | Manufacture of acicular cobalt-containing magnetic iron oxide | Peter Rudolf, Werner Steck, Helmut Jakusch, Guenter Vaeth | 1981-10-20 |
| 4287233 | Manufacture of acicular cobalt-containing magnetic iron oxide | Peter Rudolf, Werner Steck, Eberhard Koester, Manfred Ohlinger | 1981-09-01 |
| 4259368 | Manufacture of acicular magnetic iron oxide | Peter Rudolf, Werner Steck, Wilhelm Sarnecki | 1981-03-31 |
| 4188302 | Manufacture of acicular cobalt-modified magnetic iron oxide | Hans-Juergen Becker, Eberhard Koester, Werner Loeser, Manfred Ohlinger, Werner Steck | 1980-02-12 |