Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5896688 | Scrolling sign with manually operated change mechanism | Robert B. Aiken, Sr. | 1999-04-27 |
| 5598651 | Sign mechanism having traversable web | Robert B. Aiken, Sr. | 1997-02-04 |
| 4807779 | Tamper-proof display and dispensing apparatus | — | 1989-02-28 |
| 4337588 | Digital spring roll display device | — | 1982-07-06 |