Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5071065 | Procedure for controlling and maintaining air currents or equivalent in an air-conditioning installation, and an air-conditioning system according to said procedure | Erkki Aalto, Timo Mattila, Pertti Rantanen | 1991-12-10 |
| 5031515 | Method for regulation of ventilation as well as an air-conditioning device used in the method | Harri Jantunen | 1991-07-16 |
| 4934397 | Procedure and means for controlling volumetric flow rate in air-conditioning installations | Raimo Lehtola, Kari Kakkonen | 1990-06-19 |
| 4903894 | Ventilation control procedure and ventilation control means | Teuvo Pellinen, Erkki Aalto | 1990-02-27 |