Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9621426 | Switching facility having a control panel with relegendable buttons | Mark E. Nelsen, Kieran J. Lyons, Gary M. Waters | 2017-04-11 |
| 5543976 | Providing transitions of slew rate dependent on pulse frequency | Birney D. Dayton | 1996-08-06 |
| 5396512 | Port transceiver for providing communication between a signal transmitting and receiving machine and a space switch | Charles S. Meyer | 1995-03-07 |
| 5315449 | Time code signal processing circuit for removing and restoring variation in slew rate | Birney D. Dayton | 1994-05-24 |