Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684869 | Telephone station remote access device and method | Randall J. Penning | 1997-11-04 |
| 4741026 | Message signaling arrangement between a switching system and user terminals | Leslie A. Baxter, James R. Campbell, Wayne A. Davidson, Laura M. Fandre, Robert M. Lund +3 more | 1988-04-26 |