Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8779275 | Thermoelectric generator battery charger and power supply | Bjørn Eirik Birkeland, Erik Rosness | 2014-07-15 |
| 8404962 | Thermoelectric generator for battery charging and power supply | Bjørn Erik Birkeland, Erik Rosness | 2013-03-26 |