Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE35336 | Self-contained programmable terminal for security systems | Donald P. Sturgis, Robert J. Fox | 1996-09-24 |
| 4299326 | Weight sorting memory circuit | — | 1981-11-10 |
| 4218690 | Self-contained programmable terminal for security systems | Donald P. Sturgis, Robert J. Fox | 1980-08-19 |
| 4216375 | Self-contained programmable terminal for security systems | Donald P. Sturgis, Robert J. Fox | 1980-08-05 |