Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4925598 | Aerator for industrial and domestic wastewaters | Tuomo Kivistö, Tauno T. Koho | 1990-05-15 |
| 4720361 | Immersible aerator and/or mixer apparatus | — | 1988-01-19 |
| 4540290 | Immersible aerator and/or mixer apparatus | Erkki J. Jarvinen, Pekka Taskinen, Jarmo J. Pullo, Seppo T. Kinnunen | 1985-09-10 |