Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815522 | Ventilation plant | — | 1989-03-28 |
| 4513393 | Document handling terminal computer | Olof A. Edlund, Mats A. Enser, Jan W. Strage, Erik I. Wallmark | 1985-04-23 |
| 4391321 | Heat exchanger in plants for ventilating rooms or buildings | — | 1983-07-05 |