Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6028421 | Method for low-transient power control of electrical loads and electrical heating apparatus | Albrecht Griesshammer | 2000-02-22 |
| 5919385 | Cooking apparatus | Heinz Korver | 1999-07-06 |
| 5798503 | Method of achieving a comfortable temperature in a room, and device for carrying out this method | Klaus Klinkenberg | 1998-08-25 |
| 5522307 | Device for controlling the boiling power of a water-containing vessel | Klaus Klinkenberg | 1996-06-04 |
| 5410129 | Arrangement for controlling the heating power for a cooking vessel | Klaus Klinkenberg, Martin Sonnek | 1995-04-25 |
| 5390071 | Low interference controlled switching circuit for multiple loads | Martin Sonnek | 1995-02-14 |
| 5378482 | Method of controlling the boiling power for a water-containing vessel | Klaus Klinkenberg | 1995-01-03 |
| 4871961 | Method of controlling the supply of power to electrical loads with a minimum of switching surges | Karl J. Kuhlmorgen, Egbert Kuhl | 1989-10-03 |
| 4866327 | Gas discharge lamp with microporous aerogel | Hanns E. Fischer, Horst Horster, Joseph G. Van Lierop | 1989-09-12 |
| 4829159 | Method of optimizing control of plural switched electric loads to reduce switching transients | Walter Braun, Egbert Kuhl | 1989-05-09 |
| 4714822 | Cooker with means for automatically controlling the heating of a pan with food material | Walter Braun, Egbert Kuhl | 1987-12-22 |
| 4705991 | Method of operating a high-pressure metal vapor discharge lamp and circuit arrangement for carrying out this method | Hans G. Ganser, Rolf Schafer, Hans Peter Stormberg | 1987-11-10 |