Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ari Pelkiö | Ahlstrom Machinery Oy | 2 |
| 1 | Holger Engdahl | Ahlstrom Machinery Oy | 2 |
| 3 | Antti Kuhasalo | Valmet Aktiebolag | 1 |
| 3 | Heikki Tolvanen | Saimatec Engineering Oy | 1 |
| 3 | Raimo Kohonen | A. Ahlstrom | 1 |
| 3 | Erkki Yli-Vakkuri | Tamglass Ltd. Oy | 1 |