Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5620116 | Rotary vane gate | Klaus Schwab, Andreas Franz, Dieter Quittek, Bernd Kollner | 1997-04-15 |
| 4930943 | Silo for storing and discharging bulk material and method of operating such silo | Norbert Ahrens, Joachim-Rudolf Mihatsch, Hans-Jurgen Rzadki | 1990-06-05 |
| 4539782 | Silo for loose material in powder form | Norbert Ahrens, Otto Heinemann, Heinrich Klockenbusch | 1985-09-10 |
| 4533395 | Method of making a leach resistant fixation product of harmful water-containing waste and cement | Peter Vejmelka, Rainer Koster, Wolfgang Hauser | 1985-08-06 |
| 4398828 | Pneumatic mixing silo | Heinz Huser | 1983-08-16 |
| 4252667 | Method for placing radioactive wastes mixed with bitumen into containers | Winfried Stegmaier, Hellmut Boden, Fritz W. Schneider | 1981-02-24 |
| 4204974 | Method for removing radioactive plastic wastes and apparatus therefor | Anwer Puthawala, Lutz Hoffmann, Hermann Emmert, Werner Hild, Hans-Erich John | 1980-05-27 |