Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D430546 | Receiver | — | 2000-09-05 |
| D419554 | Transmitter | — | 2000-01-25 |
| D283023 | Telephone branch exchange cabinet | — | 1986-03-18 |
| D275954 | Voice and data telephone set | — | 1984-10-16 |
| D272439 | PABX Console | — | 1984-01-31 |
| D268265 | Telephone line and trunk status display | — | 1983-03-15 |
| D266762 | Telephone line and trunk status display | — | 1982-11-02 |