Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6720864 | Wireless on-call communication system for management of on-call messaging and method therefor | Robert Edward Barratt, Edward L. Ehmke | 2004-04-13 |
| 5394140 | Method and apparatus for pre-programmed call-back-number-determined alert | Allen J. Weidler, William J. Burke | 1995-02-28 |