Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6126588 | Flexible magnetic pad | Johannes Spijkerman, Ivan H. Darius | 2000-10-03 |
| 5594615 | Method and apparatus for reducing the intensity of magenetic field emissions from display device | Johannes Spijkerman | 1997-01-14 |