Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5828203 | Battery charger with charging current variation based on a temperature difference between the battery and its environment | Oedilius Johannes Bisschop | 1998-10-27 |
| 5657238 | Resistance measuring circuit, and thermal apparatus including the measuring circuit | — | 1997-08-12 |
| 5568374 | Vacuum cleaner with three-wire power-supply and communication connection between functional units to be coupled | Jan Tiesinga, Peter Sofrides Viet | 1996-10-22 |