Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4567294 | Preparation of ammonium carbamate | Heinrich Eberle, Willi Ripperger, Wolfgang Ruehenbeck, Werner Zwick | 1986-01-28 |
| 4448080 | Process and apparatus for monitoring the formation and propagation of cracks in machine parts and components | Johannes Greven, Arnulf Jeck, Rudolf Magin, Guenther Nick, Paul Schaffarczyk +1 more | 1984-05-15 |
| 4212737 | Processes and apparatus for removing suspended matter from suspensions by filtration through foams | Hans Daucher, Klaus Hess, Hubert Engelhardt | 1980-07-15 |