Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6525300 | Cooking surface for cooking food having a glass ceramic surface with a glass coating thereon | Ina Mitra, Jutta Reichert, Cora Krause, Otmar Becker, Michael Bug | 2003-02-25 |
| 6515263 | COOKING STOVE HAVING A SMOOTH-TOP GLASS CERAMIC COOKTOP, AND A SMOOTH-TOP GLASS CERAMIC COOKTOP WITH A GLASS CERAMIC COOKTOP COOKING SURFACE, METHOD FOR PRODUCTION OF STOVES WITH SMOOTH-TOP GLASS CERAMIC COOKTOPS AND SMOOTH-TOP GLASS CERAMIC COOKTOPS | Ina Mitra, Otmar Becker, Andreas Schminke, Bernd Rüdinger, Christian Roos +4 more | 2003-02-04 |
| 6251810 | Composite solder glass, filling material for same and methods of using same | Dietrich Mund, Hartmut Paschke, Hans-Werner Beudt | 2001-06-26 |
| 6043171 | Lead-free and cadmium-free glass compositions for glazing, enameling and decorating glass of glass-ceramics | Ottmar Becker, Waldemar Weinberg, Petra Auchter-Krummel | 2000-03-28 |
| 5633090 | Lead-and cadmium-free glass composition for glazing, enameling and decorating glass | Erich Rodek, Werner Kiefer | 1997-05-27 |
| 5250474 | Glass powder which is crystallizable to yield a sintered glass ceramic containing hexagonal cordierite as the principal crystalline phase | — | 1993-10-05 |
| 4904291 | Process for the manufacture of open porous sintered bodies being prepronderantly composed of glass ceramics | Werner Kiefer, Maria Sura | 1990-02-27 |