Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689319 | Electro optic display device with porous sub-layer and method | Willem Walrave | 1997-11-18 |
| 5592316 | Method of making an electro-optic display device with porous sub-layer | Willem Walrave | 1997-01-07 |