Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4990824 | Color cathode ray tube having interference filter with different pass bands | Leendert Vriens, Johannes C. N. Rijpers, Albert Comberg, Johannes H. M. Wilting, Aart A. Van Gorkum | 1991-02-05 |
| 4937176 | Method of manufacturing a semiconductor device, in which a negative image is formed on a semiconductor substrate in a positive photolacquer | Wilhelmus P. M. Nijssen, Marcellinus J. H. J. Geomini | 1990-06-26 |
| 4704347 | Method of manufacturing a semiconductor device, in which a photolacquer mask is formed by means of a two-layer lacquer system. | Jan G. Dil, Henricus J. J. Kroon, Elisabeth J. Spiertz, Wilhelmus P. M. Nijssen | 1987-11-03 |
| 4499177 | Method of manufacturing a semiconductor device | Elisabeth J. Spiertz | 1985-02-12 |