Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4988238 | Method for improving the strength and impermeability of soils and engineering structures | Tamas Szekely, Gabor Nagy, Andras Danko, Janos Szepvolgyi, Oszkar Libor | 1991-01-29 |
| 4795564 | Process for improving the sedimentation and filtering properties of waste waters containing clay minerals | Sandor Bauer, Sandor Doleschall, Gyula Milley, Gyula Nagy, Tibor Paal | 1989-01-03 |
| 4675114 | Process for dewatering municipal and other sewage sludges | Istvan Zagyvai, Jozsef Merai, Daniel Szamosi | 1987-06-23 |