Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7442307 | Method and apparatus for the biological activated sludge treatment of wastewater | Zoltan Takacs, István Kenyeres | 2008-10-28 |
| 5071566 | Process for the separation of solid phase from liquid substance, particularly for waste water purification | Endre Papp, Istvan Papp, Lajos L. Szabo, Sr., Istvan Apro, Ferenc Torocsik +4 more | 1991-12-10 |