Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4471260 | Oxide cathode | Jan Hasker, Peter Opmeer, Johannes A. T. Verhoeven | 1984-09-11 |
| 4226509 | Display device comprising a liquid display medium | — | 1980-10-07 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4471260 | Oxide cathode | Jan Hasker, Peter Opmeer, Johannes A. T. Verhoeven | 1984-09-11 |
| 4226509 | Display device comprising a liquid display medium | — | 1980-10-07 |