Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618430 | Process for performing reactions | — | 1997-04-08 |
| 4825634 | Suction tube for collecting broken ends of yarn at the outlet of a textile machine | Ernst Halder, Friedrich Dinkelmann, Robert Buder, Dieter Horak, Hans-Heinz Schafer | 1989-05-02 |
| 4786413 | Process for biological sewage purification | Hans Reimann | 1988-11-22 |
| 4715958 | Process and means for conducting the denitrification of water | — | 1987-12-29 |
| 4664803 | Anaerobic treatment of wastewater | Hans Reimann | 1987-05-12 |
| 4566971 | Process and apparatus for the biological purification of wastewater | Hans Reimann | 1986-01-28 |
| 4551250 | Process for the anaerobic biological purification of wastewater | Manfred Morper | 1985-11-05 |
| 4524139 | Process for the compressive regeneration of flexible, porous materials | — | 1985-06-18 |
| 4521311 | Activated sludge system with integrated regenerator | Alfred Wildmoser | 1985-06-04 |
| 4500429 | Process for the biological purification of waste water | Hans Reimann, Allen Frydman | 1985-02-19 |
| 4479876 | Process and apparatus for the biological purification of wastewater | — | 1984-10-30 |
| 4430224 | Process and apparatus for biologically treating waste waters | — | 1984-02-07 |
| 4415454 | Nitrification treatment of wastewater | — | 1983-11-15 |