Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4459632 | Voltage-limiting circuit | Aloysius J. Nijman | 1984-07-10 |
| 4415775 | Arrangement for exchanging signals between separated circuits | Aloysius J. Nijman | 1983-11-15 |
| 4370526 | Arrangement for applying a ringing voltage to a subscriber's line | Aloysius J. Nijman, Frederik Van Dongen | 1983-01-25 |
| 4313034 | Connecting circuit for a telephone line | Aloysius J. Nijman | 1982-01-26 |
| 4310733 | Arrangement for applying signals to a telephone line | — | 1982-01-12 |
| 4306122 | Telephone line circuit | Aloysius J. Nijman | 1981-12-15 |
| 4267408 | Arrangement for applying a signal to a transmission line | — | 1981-05-12 |
| 4254442 | Circuit for the protection of telephone lines | Eise C. Dijkmans | 1981-03-03 |