Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827185 | Color picture tube having internal conductive coatings | Norbert Thiel, Volker Gerstle, Rolf Zondler | 1989-05-02 |
| 4762733 | Color picture tube | Norbert Thiel, Volker Gerstle, Rolf Zondler | 1988-08-09 |