Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5142569 | Apparatus for selectively enabling subscriber device to respond to ringing signal in dependence upon ringing cadence | George W. Peters, Robert H. Kraemer, Scott S. Parker | 1992-08-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5142569 | Apparatus for selectively enabling subscriber device to respond to ringing signal in dependence upon ringing cadence | George W. Peters, Robert H. Kraemer, Scott S. Parker | 1992-08-25 |