Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821628 | Glass-ceramic cooking panel that makes deposited material, such as dirt, less conspicuous | Bernd Schultheis, Monica Cotlear De Witzmann, Roland Dudek, Friedrich Siebers, Klaus Schoenberger | 2004-11-23 |
| 6673504 | Method for applying a coating to a surface of a material | Michael Zimmer, Horst Stedron | 2004-01-06 |
| 6524641 | Method for producing substrates having defect free patterns thereon | Monica Cotlear de Witzmann, Petra Auchter-Krummel, Dave Campbell | 2003-02-25 |
| 6487386 | Device for applying decors and/or characters on glass, glass ceramics and ceramics products | Michael Zimmer, Petra Auchter-Krummel, Dieter Jung | 2002-11-26 |
| 6300030 | Method and apparatus for making a design and/or sign on glass, glass-ceramic or ceramic articles | Michael Zimmer | 2001-10-09 |
| 6187429 | Decorative ceramic color layers applied to glass or glass ceramic substrates | Herwig Scheidler | 2001-02-13 |
| 6043171 | Lead-free and cadmium-free glass compositions for glazing, enameling and decorating glass of glass-ceramics | Friedrich Siebers, Ottmar Becker, Petra Auchter-Krummel | 2000-03-28 |
| 5922271 | Method for the manufacture of dense-sintered glass ceramic moldings | Wolfgang Semar, Janusz Zborowski, Wolfgang Pannhorst, Klaus Mirsch, Michael Dunkl +3 more | 1999-07-13 |
| 5837025 | Method of producing fine-particle multicomponent glass powders for use as a glass flow for producing layers and decorations on glass, glass ceramic or ceramic | Petra Auchter-Krummel, Christoph Lesniak, Rudiger Nass, Helmut Schmidt, Nanning Joerg Arfsten | 1998-11-17 |
| 5723220 | Removal of halos from glass-ceramic articles decorated with a ceramic color | Roland Leroux, Erich Rodek, Kurt Schaupert, Jurgen Thurk | 1998-03-03 |
| 5716712 | Glass-ceramic article decorated with ceramic colorings and method for making the same | Dieter Schonig, Dietmar Wennemann, Monica Cotlear de Witzmann | 1998-02-10 |
| 5500255 | Removal of halos from glass-ceramic articles decorated with a ceramic color | Roland Leroux, Erich Rodek, Kurt Schaupert, Jurgen Thurk | 1996-03-19 |
| 5484467 | Process for the production of decorative glass ceramic articles | Peter Nass, Otmar Becker, Klaus Kristen, Manfred Borens, Roland Leroux +1 more | 1996-01-16 |
| 5409742 | Method for melting and/or burning-in of at least one layer | Nanning Joerg Arfsten, Klaus Kristen, Erich Rodek, Herwig Scheidler | 1995-04-25 |