Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6765179 | Electric radiant element with an active sensor for cooking vessel detection | Erich John, Wilfried Schilling | 2004-07-20 |
| 6689286 | Shaped thermal insulation body | Guenter Kratel, Bernhard Mikschl, Horst Pfob, Erich John | 2004-02-10 |