Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5394140 | Method and apparatus for pre-programmed call-back-number-determined alert | Poh-T'in Wong, William J. Burke | 1995-02-28 |
| 4431991 | Encoder for transmitted message deactivation code | David F. Bailey, Merle L. Gilmore, Gary W. Clow | 1984-02-14 |
| 4427980 | Encoder for transmitted message activation code | Robert D. Fennell, David F. Bailey | 1984-01-24 |