Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5635429 | Method of making a substrate of a ceramic material | Wilhelm A. Grogen, Marcellinus J. Kraan, Gijsbertus De With | 1997-06-03 |
| 5571757 | Substrate of a ceramic material | Wihelm Albert Groen, Marcellinus J. Kraan, Gijsbertus De With | 1996-11-05 |