Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6756727 | Color picture screen with color filter | Hans-Helmut Bechtel, Joachim Opitz | 2004-06-29 |
| 6753649 | Plasma picture screen with UV light reflecting front plate coating | Helmut Bechtel, Wolfgang Busselt, Claus Feldmann, Joachim Opitz, Detlef Uwe Wiechert | 2004-06-22 |