Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4750336 | Arrangement for producing ice slush | — | 1988-06-14 |
| 4483318 | Borehole reservoir | — | 1984-11-20 |
| 4258661 | Fish pond plant | — | 1981-03-31 |
| 4227511 | Solar collector apparatus | Rutger Roseen, Heimo Zinko | 1980-10-14 |
| 4210203 | Heat exchanger apparatus | Rolf P. Naslund | 1980-07-01 |
| 4182403 | Arrangement for transferring heat from the exhaust air leaving an enclosed volume to the input air supplied to said volume | — | 1980-01-08 |