Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4712091 | Digital/analog converter having a switchable reference current | Franciscus A. C. M. Schoofs, Martinus P. M. Bierhoff, Job F. P. van Mil | 1987-12-08 |
| 4689501 | Signal level detector for compact disc player | Franciscus A. C. M. Schoofs, Martinus P. M. Bierhoff, Job F. P. van Mil | 1987-08-25 |
| 4663749 | Apparatus for reproducing information from an optically readable record carrier | Martinus P. M. Bierhoff, Job F. P. van Mil, Franciscus A. C. M. Schoofs | 1987-05-05 |