Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6092909 | Road marking unit and road marking system capable of switching from reflective state to light absorbing state | Franciscus Guillaume Peter Sools, Alexander Henzen | 2000-07-25 |
| 5897186 | Display device with discoloration--prevention electrodes | — | 1999-04-27 |
| 5808713 | Flat-panel picture display device | Dirk Jan Broer, Alexander Henzen | 1998-09-15 |