Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9337898 | Digital intercom network over DC-powered microphone cable | David Albiston, David Prime | 2016-05-10 |
| 9071912 | Audio test tool | Rom Rosenblum | 2015-06-30 |
| 8311085 | Digital intercom network over DC-powered microphone cable | David Albiston, David Prime | 2012-11-13 |