Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7247239 | Method for biological treatment of water by adding macromolecular carbohydrates | Maria Kotsaridou, Hasan Hamouda | 2007-07-24 |
| 7166222 | Method for biologically purifying waste water | Soo-Myung Kim | 2007-01-23 |
| 5837141 | Process for the biological treatment of waste water | — | 1998-11-17 |
| 4954257 | Biological purification loop device and method having deflector plate within guide pipe | Norbert Rabiger | 1990-09-04 |
| 4940546 | Installation for aerobic biological purification of pollutant-containing water | Norbert Rabiger | 1990-07-10 |