Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851645 | Device for determining the temperature of a glass ceramic plate heated by means of heat coils or halogen lamps | Wolfram K. Andre | 1989-07-25 |
| 4839503 | Controlling the simmering or cooking time in a cooking vessel | Wolfram K. Andre | 1989-06-13 |
| 4828166 | Device for regulating the heating element of a cooking vessel | Wolfram K. Andre | 1989-05-09 |
| 4803344 | Apparatus and process for controlling the simmering or cooking time in a cooking vessel | Wolfram K. Andre | 1989-02-07 |
| 4796207 | Process and apparatus for roasting with a roasting vessel | Wolfram K. Andre | 1989-01-03 |