Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5144363 | Apparatus for and method of projecting a mask pattern on a substrate | Stefan Wittekoek, Marinus Aart Van Den Brink | 1992-09-01 |
| 4356392 | Optical imaging system provided with an opto-electronic detection system for determining a deviation between the image plane of the imaging system and a second plane on which an image is to be formed | Stefan Wittekoek | 1982-10-26 |
| 4334139 | Apparatus for writing patterns in a layer on a substrate by means of a beam of electrically charged particles | Stefan Wittekoek | 1982-06-08 |