Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871902 | Electric hotplate and apparatus for the connection thereof | — | 1989-10-03 |
| 4864106 | Electrical component | Josef Lorenz, Ewald Keller | 1989-09-05 |
| 4861969 | Electric hotplate, apparatus and method for fitting a cover plate thereto | Felix Schreder, Stefan Reif | 1989-08-29 |
| 4845340 | Electric radiant heating element for heating a plate particularly a glass ceramic plate | Gerhard Goessler, Eugen Wilde | 1989-07-04 |
| 4829279 | Electric switching device, operable for power control | Willi Essig, Siegfried Mannuss | 1989-05-09 |
| 4818846 | Electric hotplate and apparatus for the connection thereof | Felix Schreder, Stefan Reif, Uwe Schneider | 1989-04-04 |
| D299407 | Electric hotplate | Felix Schreder | 1989-01-17 |
| D299408 | Electric hotplate | Felix Schreder | 1989-01-17 |