Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6698242 | Brittle article comprising joined-together hardened glass and/or glass-ceramic parts and method of making same | Wolfram Beier, Ulrike Beer, Roland Schnabel, Evelin Weiss, Stefan Hubert +1 more | 2004-03-02 |
| 6369365 | Glass-ceramic panel providing a cooking surface with a cooking zone indicating device and method of making same | Peter Nass, Dietmar Wennemann, Dietmar Schoenig, Stefan Hubert | 2002-04-09 |
| 6360653 | Hardened glass or glass-ceramic cooking vessel formed as a wok, and method of making same | Erich Rodek, Helga Goetz, Stefan Hubert, Evelin Weiss, Horst Schillert | 2002-03-26 |
| 5958272 | Cooktop with a glass or glass ceramic cooking surface | Martin Taplan, Bernd Schultheis | 1999-09-28 |