Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4995991 | Method and apparatus for improving the operation of a disc filter | Risto Ljokkoi, Tapani Niiranen, Erkki Savolainen, Jari Siitonen | 1991-02-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4995991 | Method and apparatus for improving the operation of a disc filter | Risto Ljokkoi, Tapani Niiranen, Erkki Savolainen, Jari Siitonen | 1991-02-26 |