Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7162027 | Voice messaging system caller ring bypass control | Joseph M. Cannon, James A. Johanson | 2007-01-09 |
| 6212271 | Telephone apparatus and method adapted for use by impaired individuals | Diane Hughes, Scott W. McLellan | 2001-04-03 |