Issued Patents All Time
Showing 1–25 of 27 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 | Albrecht Griesshammer, Martin Sonnek | 2000-07-25 |
| 5549042 | Domestic appliance for making ice-cream | Reinhard Prandl, Martin Sonnek | 1996-08-27 |
| 5207731 | Electric shaver | — | 1993-05-04 |
| 5158562 | Epilating device having epilating rollers rotatingly drivable in opposite directions | Leo Bertram, Hugo Schemmann | 1992-10-27 |
| 5121020 | Rotor for an electric motor | Leo Bertram, Hugo Schemmann | 1992-06-09 |
| 5088999 | Depilation apparatus | Norbert Schneider | 1992-02-18 |
| 5022315 | Small electric household utensil for the production of foods by mixing by stirring | Leo Bertram, Hugo Schemmann | 1991-06-11 |
| 5012147 | Domestic vibration apparatus with lever drive | Leo Bertram, Hugo Schemmann | 1991-04-30 |
| 4948999 | Self-starting two-pole single-phase synchronous motor | Leo Bertram | 1990-08-14 |
| 4920761 | Ice-cream maker | Wolfgang Ramusch, Johann Schroder | 1990-05-01 |
| 4868435 | Single phase synchronous motor vibration apparatus | Gerhard Diefenbach, Hugo Schemmann | 1989-09-19 |
| 4827204 | Synchronous motor with dynamic damping | Hugo Schemmann | 1989-05-02 |
| 4807365 | Method for making the shaving head of a dry-shaving apparatus | Leo Bertram, Hugo Schemmann, Reinhard Huszar | 1989-02-28 |
| 4803390 | Dual motor drive arrangement for a small domestic appliance | Leo Bertram, Hugo Schemmann | 1989-02-07 |
| 4791327 | Drive mechanism for a domestic vibration apparatus | Leo Bertram, Hugo Schemmann | 1988-12-13 |
| 4759192 | Domestic appliance comprising a tool | Leo Bertram, Hugo Schemmann | 1988-07-26 |
| 4712386 | Discoid cold cartridge insertable into an ice-cream maker | Merowech Eckel, Johann Schroder | 1987-12-15 |
| 4696166 | Ice-cream maker | Reinhard Huszar | 1987-09-29 |
| 4637283 | Corkscrew device | Leo Bertram, Peter Steiner | 1987-01-20 |
| 4628607 | Vibration dry shaving apparatus driven by a bipolar uniphase synchronous motor | Leo Bertram, Hugo Schemmann | 1986-12-16 |
| 4621423 | Shear head of a dry-shaver comprising a shear foil which is clamped so as to be curved | Hugo Schemmann | 1986-11-11 |
| 4606121 | Drive mechanism for a vibration-type dry-shaver | Gerhard Diefenbach, Hugo Schemmann | 1986-08-19 |
| 4604539 | Drive mechanism with a rotary drive motor | Leo Bertram | 1986-08-05 |
| 4520286 | Appliance driven by an electric motor | Gerhard Diefenbach | 1985-05-28 |
| 4506178 | Return stop for a self-starting synchronous motor | Peter Steiner | 1985-03-19 |