Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D590828 | Card reader | Scott D. Sherrod, Mark B. Emge | 2009-04-21 |
| 5960060 | Line tester for coin-operated telephones | — | 1999-09-28 |
| 4833379 | Motor control fail-safe circuit | Frederick F. Schweitzer, Jr. | 1989-05-23 |