Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4713879 | Method of manufacturing a device having an electric resistance layer and the use of the method | — | 1987-12-22 |
| 4710673 | Electron tube envelope assembly with precisely positioned window | — | 1987-12-01 |
| 4684994 | Television camera tube with honeycomb grid electrode | Aart A. Van Gorkum | 1987-08-04 |
| 4304586 | Method of manufacturing a cathode-ray tube | Johannes H. T. van Roosmalen | 1981-12-08 |
| 4278912 | Electric discharge tube having a glass-sealed electric leadthrough and method of manufacturing such an electric leadthrough | Johannes P. T. Franssen | 1981-07-14 |
| 4276494 | Cathode ray tube with transversely supported electrode and conductive wall coating | Johannes H. T. van Roosmalen | 1981-06-30 |
| 4182973 | Electric discharge tube | Franciscus C. M. De Haas | 1980-01-08 |