Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6190750 | Rewritable optical information medium | Harm Wierenga | 2001-02-20 |
| 6122058 | Interferometer system with two wavelengths, and lithographic apparatus provided with such a system | Jan Evert Van Der Werf, Philippe J. L. Belien | 2000-09-19 |
| 6040066 | Rewritable optical information medium | Guo-Fu Zhou, Bernardus A. J. Jacobs, Hermanus Borg | 2000-03-21 |
| 5689497 | Optical registration medium with dual information layer | Hermanis J. H. Wilting, Johannes T. H. Thijssen | 1997-11-18 |
| 5541139 | Method of manufacturing a radiation-emitting semiconductor diode | Leonardus J. M. Hendrix | 1996-07-30 |
| 5300452 | Method of manufacturing an optoelectronic semiconductor device | Chang V. J. M. Chang | 1994-04-05 |
| 5061993 | Projection television display device | Leendert Vriens, Johannes H. M. Spruit | 1991-10-29 |
| 4990824 | Color cathode ray tube having interference filter with different pass bands | Leendert Vriens, Albert Comberg, Johannes H. M. Wilting, Aart A. Van Gorkum, Franciscus A. Vollenbroek | 1991-02-05 |
| 4798994 | Low reflectance display device | Henricus M. De Vrieze | 1989-01-17 |
| 4647812 | Display tube having a display window with an interference filter | Leendert Vriens, Johannes H. M. Spruit, Titus E. C. Brandsma | 1987-03-03 |
| 4634926 | Display tube provided with an interference filter | Leendert Vriens, Johannes H. M. Spruit, Titus E. C. Brandsma | 1987-01-06 |