Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5346151 | Severing a web | Clifton Zimmermann | 1994-09-13 |
| 5019704 | Measuring circuit for detecting measurement signals | Clifton Zimmermann, Helmut Lewin | 1991-05-28 |
| 4473460 | Continuous preparation of hydrocarbon oils from coal by hydrogenation under pressure in two stages | Hubert Puestel, Rudi Schulz, Georg Weber | 1984-09-25 |
| 4436702 | Reactor for hydrogenating coal slurry | Rudi Schulz, Hubert Puestel, Georg Weber | 1984-03-13 |
| 4234560 | Process for treating a liquid with a gas and for preventing the phase separation of unreacted gas and liquid, in a circulatory reactor | Otto Nagel, Peter Zehner | 1980-11-18 |