Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12166195 | Method for reducing internal resistance of a battery and a battery with reduced internal resistance | Reijo Lappalainen, Petteri Koljonen | 2024-12-10 |
| 11462674 | Add-on unit or cable connectable to the power supply or signal cord of an electric device | Petteri Koljonen, Reijo Lappalainen | 2022-10-04 |