Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6093987 | Appliance having an a.c. series motor and having switching means for switching this motor to different speeds | Romuald L. Bukoschek, Martin Sonnek | 2000-07-25 |
| 6028421 | Method for low-transient power control of electrical loads and electrical heating apparatus | Reinhard Kersten | 2000-02-22 |
| 5891064 | Massaging apparatus having two rollers and suction chamber | Johannes Johanna Van Herk | 1999-04-06 |