Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4433211 | Privacy communication system employing time/frequency transformation | Arnold M. McCalmont | 1984-02-21 |
| 4392021 | Secure facsimile transmission system using time-delay modulation | — | 1983-07-05 |
| 4276652 | Secure communication system with improved frequency-hopping arrangement | Arnold M. McCalmont | 1981-06-30 |