Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9853768 | System and method of data communication that compensates for wire characteristics | — | 2017-12-26 |
| 5887067 | Audio communication system for a life safety network | Hilario Costa, Elizabeth Meyer-Horton, Andrew Novetzke, Michael Slack | 1999-03-23 |
| 5831546 | Automatic addressing in life safety system | Hilario Costa | 1998-11-03 |
| 5133005 | Line powered pay telephone with power management | Eugene D. Kelley, Charles Edmund Murphy, Piera G. Kelley | 1992-07-21 |