Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441547 | Cathode ray tube with narrowed neck portion | Daniel Den Engelsen, Mark N. Jonkhof, Michiel Harjon Wassink, Ronald Van Der Wilk, Antonius H. J. Willems | 2002-08-27 |
| 6373181 | Deflection unit for a cathode ray tube | Nicolaas G. Vink | 2002-04-16 |
| 5202606 | Cathode-ray tube with focussing structure and getter means | Gerardus A. H. M. Vrijssen, Ger-Wim J. Goorhuis | 1993-04-13 |
| 5117152 | Cathode ray tube including a magnetic focusing lens | Arne L. Duwaer | 1992-05-26 |
| 4988929 | Picture display device | Tjerk G. Spanjer, Gerardus A. H. M. Vrijssen | 1991-01-29 |
| 4988928 | Picture display device | Gerardus A. H. M. Vrijssen | 1991-01-29 |
| 4961022 | Display tube including a helical focusing lens with a non-rotationally symmetrical lens element | Gerardus J. A. Hellings, Antonius W. F. van der Heijden, Erich E. Himmelbauer, Gerardus A. H. M. Vrijssen, Tjerk G. Spanjer +1 more | 1990-10-02 |
| 4899080 | Projection television display tube with cooling means and display device having such a display tube | Leendert Vriens, Gerrit B. Gerritsen | 1990-02-06 |
| 4734613 | Liquid cooled display tube | Gerritt B. Gerritsen | 1988-03-29 |
| 4721880 | Color cathode ray tube including a channel plate electron multiplier | John R. Mansell, Derek Washington | 1988-01-26 |
| 4398896 | Method of de-burring and cleaning electrode systems | — | 1983-08-16 |