Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647955 | Method of reducing scaling of heat transfer surfaces in an evaporation plant of a sulphate cellulose mill | Jarmo Kaila, Jouko Rikkinen, Matti Knuutila | 1997-07-15 |
| 5624531 | Evaporator operating on falling film principle | Matti Knuutila, Kalevi Nurminen, Anssi Makela | 1997-04-29 |