Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640157 | Information system for a ship | — | 1997-06-17 |
| 4549286 | Interference suppression unit for a sonar apparatus | Alexander P. M. Van Der Schoot | 1985-10-22 |
| 4347592 | Sonar | — | 1982-08-31 |
| 4227196 | Direction finding apparatus | — | 1980-10-07 |
| 4188628 | Frequency measuring circuit in a passive radar receiver | Gerrit Van Rooijen | 1980-02-12 |