Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6391388 | Process for producing ceramic multicolored prints having improved reproduction quality and apparatus for implementing the process | Hans Hilgenfeld, Karl-Heinz Koch | 2002-05-21 |
| 5032429 | Method of producing luminous decorations | Helmut Scholtis, Kai Dorer | 1991-07-16 |