Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4551699 | Rotary variable differential transformer | Joannes N. M. de Jong | 1985-11-05 |
| 4442474 | Capacitive pressure transducer | Joannes N. M. de Jong | 1984-04-10 |
| 4425509 | Turboflapper nozzle systems | Joannes N. M. de Jong, Anthony P. Nardi | 1984-01-10 |
| 4409830 | Wave velocity detecting schemes for traveling wave flow meter | Joannes M. M. de Jong, Richard K. Somes | 1983-10-18 |