Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5849195 | Composite membrane, process of manufacturing it and process of using it | Peter Haenel, Erika Schwerdtner | 1998-12-15 |
| 5183571 | Multilayer membrane and process of manufacturing the same | Peter Hanel, Ulrich Sander | 1993-02-02 |
| 5164088 | Multilayer membrane and process of manufacturing same | /Peter Hanel | 1992-11-17 |
| 4895989 | Process for producing alkali metal alcoholates | Ulrich Sander, Pavel Soukup, Wilfried Weiss | 1990-01-23 |
| 4249163 | Automatic money dispenser and method | Thomas A. Maurer, Helmut Groettrup | 1981-02-03 |