Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5812656 | System for providing prioritized connections in a public switched network | David B. Smith | 1998-09-22 |
| 5802155 | Method and apparatus for controlling regular and supressed ringing connections in a telecommunications network | David B. Smith | 1998-09-01 |
| 5661785 | Flexible telecommunications line interface | Stuart Alan Carpenter, Richard Gregory Carr | 1997-08-26 |
| 5509054 | Communication switching system | — | 1996-04-16 |
| 5452343 | Telemetry access arrangement | Jerome W. Schull | 1995-09-19 |
| 5394461 | Telemetry feature protocol expansion | — | 1995-02-28 |
| 5327488 | Remotely initiated telemetry calling system | — | 1994-07-05 |
| 5243644 | Telemetry access arrangement | Jerome W. Schull | 1993-09-07 |
| 5189694 | Telemetry access arrangement | — | 1993-02-23 |
| 5182766 | Generalized telecommunications customer signaling arrangement | — | 1993-01-26 |