Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9187617 | Nickel-free green pigment | Stephan Ludwig, Terry J. Detrie, George E. Sakoske | 2015-11-17 |
| 6673473 | Display screen, in particular a color display screen, coating of the same and means for producing the coating | — | 2004-01-06 |
| 6379449 | Process for the production of yellow to red pigments based on nitrides and oxidenitrides | Martin Jansen, Eberhard Gunther | 2002-04-30 |
| 6294009 | Tantalum (V) nitride pigment, process for producing it and its use | Wilfried Voigt | 2001-09-25 |
| 6235103 | Tantalum (V) nitride pigments, process for the production thereof and use thereof | Wilfried Voigt | 2001-05-22 |
| 6004391 | Pigments for the production of purple ceramic decoration, process for the production thereof and use thereof | Jenny Wilfert | 1999-12-21 |
| 5766336 | Colored pigments based on oxide-nitrides, the preparation and use thereof | Martin Jansen | 1998-06-16 |
| 5693102 | Oxonitrides of the formula LnTaON.sub.2 with enhanced brightness and a process for their use | Martin Jansen, Dietrich Speer | 1997-12-02 |
| 5569322 | Process for using tantalum (V) nitride as a pigment and the colored products produced thereby | Martin Jansen, Dietrich Speer | 1996-10-29 |
| 5439660 | Oxonitrides of the formula LnTaOn.sub.2 with enhanced brightness and a process for their production and use | Martin Jansen, Dietrich Speer | 1995-08-08 |
| 5376349 | Method of producing tantalum (V) nitride | Martin Jansen, Dietrich Speer | 1994-12-27 |