Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6368511 | Conditioning method for dehydrating clarification sludge | Heinz-Günther Weissenberg, Bernhard Vosteen, Joachim Lemke | 2002-04-09 |
| 5820761 | Process for the treatment of organic pollutants in wastewaters by wet oxidation | Klaus Holzer, Otto Horak | 1998-10-13 |
| 5720578 | Oxidative cleaning process of contaminated slurries or slurried earth | Klaus Holzer, Otto Horak | 1998-02-24 |
| 5232676 | Process for the biological purification of waste air streams | Felix Wolff | 1993-08-03 |
| 4869824 | Bubble plate system for biological purification of air and waste water | Hubert Stracke, Otto Barth | 1989-09-26 |
| 4483379 | Wood/log processing machine | Warren A. Aikins | 1984-11-20 |
| 4411942 | Packing for technical processes | Andreas Nickel, Karl-Hermann Reissinger, Hans-Walther Brandt | 1983-10-25 |
| 4398581 | Tree processing apparatus | Warren A. Aikins | 1983-08-16 |