Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838651 | Projection tube having an insulating layer of magnesium oxide and a high transmission metal grating | Kurt M. Tischer | 1989-06-13 |
| 4786268 | Liquid-crystal display manufacturing method | Rolf Zondler | 1988-11-22 |
| 4702559 | Liquid-crystal display made from continuous plastic film split and folded through 90 degrees | Rolf Zondler | 1987-10-27 |
| 4256383 | Electro-optical display | Gerhard Wessel, Kurt Koger | 1981-03-17 |