Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458866 | Polyurethane elastomers, method of producing them and their use | Wilhelm Oppermann, Frank Hermanutz, Peter Hirt, Oliver Oess | 2002-10-01 |
| 4741837 | Process for drying brown coal of high water content | Jaroslav Fohl, Gero Tessmer | 1988-05-03 |