Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9337898 | Digital intercom network over DC-powered microphone cable | Nigel Gordon, David Prime | 2016-05-10 |
| 8311085 | Digital intercom network over DC-powered microphone cable | Nigel Gordon, David Prime | 2012-11-13 |