Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5917429 | Contactless communication system | Alton B. Otis, Jr., Tom Papanek | 1999-06-29 |
| 5220332 | Ranging by sequential tone transmission | Frederick L. Beckner | 1993-06-15 |
| 4647873 | Adaptive linear FM sweep corrective system | Frederick L. Beckner, Garry N. Hulderman | 1987-03-03 |